📚 IGCSE CAIE Psychology: High-Frequency Topics and Common Error Analysis | IGCSE CAIE 心理学：高频考点与易错题分析
This revision guide identifies the most frequently examined topics in CAIE IGCSE Psychology and explains the common errors that cost marks. It is designed for students aiming to move from description to evaluation, and from isolated facts to linked psychological arguments.
1. Exam Structure and Assessment Demands | 考试结构与评分要求
CAIE IGCSE Psychology rewards three assessment objectives: knowledge and understanding of core studies, application of research methods, and evaluation of evidence. High-scoring responses always use precise psychological terms such as ‘reconstructive memory’, ‘demand characteristics’ and ‘ecological validity’.
Paper questions often ask you to describe a study, explain a theory, or evaluate a conclusion.
试卷常要求描述研究、解释理论或评价结论。
Marks are allocated for knowledge, application, analysis and evaluation, not for story-telling.
分数按知识、应用、分析和评价分配，而不是按复述故事分配。
2. Memory: Multi-Store Model and Reconstructive Memory | 记忆：多存储模型与重构记忆
The multi-store model distinguishes sensory memory, short-term memory and long-term memory. Reconstructive memory explains that memory is an active process influenced by schema and post-event information, as shown by Loftus and Palmer.
Andrade’s doodling study supports the idea that a secondary task can improve attention to a boring primary task.
Andrade 的涂鸦研究支持次任务能提高对枯燥主任务注意力的观点。
Common error: students say memory is like a video recording, but the syllabus expects a reconstructive, active-process explanation. Another error is confusing short-term memory capacity with duration.
3. Perception: Constructivist vs Direct Theories | 知觉：建构论与直接论
Gregory’s constructivist theory argues that perception is built from incomplete sensory data using expectations and past experience. Gibson’s direct theory argues that the environment provides enough information for perception without inference.
Blakemore and Cooper’s kitten study supports the role of early visual experience in shaping perception.
Blakemore 和 Cooper 的小猫研究支持早期视觉经验对知觉塑造的作用。
Carmichael et al. showed that verbal labels can alter how ambiguous figures are remembered, supporting schema theory.
Carmichael 等人表明语言标签会改变对模糊图形的记忆，支持图式理论。
Common error: writing that Gibson’s theory is ‘top-down’ and Gregory’s is ‘bottom-up’ when the reverse is true. Gibson is bottom-up and data-driven; Gregory is top-down and concept-driven.
4. Language and Thought: Piaget, Vygotsky and Whorf | 语言与思维：皮亚杰、维果斯基与沃尔夫
Piaget saw language as dependent on cognitive development, while Vygotsky saw language and thought as initially separate but later fused. Whorf proposed that language shapes thought, known as linguistic relativity.
Piaget’s conservation tasks show that pre-operational children cannot conserve quantity, number or volume.
Piaget 的守恒实验显示前运算阶段儿童无法守恒数量、数目或体积。
Vygotsky’s zone of proximal development emphasises scaffolding from a more knowledgeable other.
Vygotsky 的最近发展区强调来自更有知识者的支架作用。
Common error: claiming Piaget believed language determines thought, or confusing Vygotsky’s scaffolding with Whorf’s linguistic relativity. Also avoid writing the ages of stages without checking the syllabus definitions.
5. Social Influence: Conformity, Obedience and Bystander Behaviour | 社会影响：从众、服从与旁观者行为
Asch studied conformity to a unanimous majority, Milgram studied obedience to authority, and Latané and Darley studied bystander intervention in emergencies. Each study links a situational variable to behaviour.
Asch found that about 75% of participants conformed at least once, but overall conformity on critical trials was around 32%.
Asch 发现约 75% 的参与者至少从众一次，但关键试次上的总体从众率约为 32%。
Milgram found that 65% of participants obeyed the experimenter up to 450 volts, despite signs of distress.
Milgram 发现 65% 的参与者服从实验者直到 450 伏特，尽管表现出痛苦。
Latané and Darley showed that the presence of others can reduce helping through diffusion of responsibility.
Latané 和 Darley 表明他人在场会通过责任分散减少助人行为。
Common error: saying Milgram’s participants were forced to continue. They were given verbal prods, not physical force, and could withdraw. Also avoid describing Asch’s study as about obedience rather than conformity.
Bowlby argued that early attachment is essential for emotional development, and maternal deprivation can lead to long-term consequences. Ainsworth’s Strange Situation classified attachment into secure, insecure-avoidant and insecure-resistant types.
Bowlby’s 44 juvenile thieves study linked early prolonged separation from the mother to affectionless psychopathy.
Bowlby 的 44 名少年小偷研究将早期长期与母亲分离与情感冷漠型精神病态联系起来。
Ainsworth found that maternal sensitivity predicts secure attachment, not simply the amount of time spent together.
Ainsworth 发现母亲的敏感性预测安全依恋，而不是仅仅相处时间的长短。
Common error: confusing attachment types with parenting styles, or describing Bowlby as studying adults rather than children. Another frequent mistake is stating that attachment is entirely learned, ignoring Bowlby’s evolutionary basis.
Bandura’s Bobo doll experiment demonstrated that children can learn aggression through observation and imitation of a model. This supports social learning theory, which includes attention, retention, reproduction and motivation.
Children who observed an aggressive model produced more imitative aggressive acts than controls.
观察到攻击榜样的儿童比控制组表现出更多模仿性攻击行为。
Boys showed more physical aggression than girls, especially after observing a male aggressive model.
男孩比女孩表现出更多身体攻击，尤其在观察男性攻击榜样之后。
Common error: saying the model told the children to hit the doll, when the model performed the actions without direct instruction. Also avoid claiming the study proves media violence causes real-world violence; it demonstrates short-term imitative learning.
8. Research Methods: Variables, Sampling and Ethics | 研究方法：变量、抽样与伦理
Independent variable is the factor manipulated by the researcher, dependent variable is the factor measured, and extraneous variables must be controlled. Sampling methods include random, opportunity, volunteer and stratified sampling.
Random sampling gives every member of the target population an equal chance of selection, but is not always practical.
随机抽样让目标总体中每个成员都有相同被选中的机会，但不一定总是可行。
Ethical guidelines include informed consent, deception avoidance, debriefing, right to withdraw, confidentiality and protection from harm.
伦理准则包括知情同意、避免欺骗、事后解释、退出权、保密和免受伤害。
Common error: writing ‘the IV is memory’ when memory is what is measured, so it is the DV. Another frequent mistake is using ‘random sampling’ for any convenient recruitment method, when really it is opportunity sampling.
Mean, median and mode are measures of central tendency, while range and standard deviation describe spread. Quantitative data can be summarised by numbers; qualitative data provides rich detail but is harder to compare.
Use the mean for normally distributed data without extreme outliers, and the median when outliers are present.
在没有极端异常值的正态分布数据中使用平均数，存在异常值时使用中位数。
Evaluation should discuss strengths and weaknesses of method, sample, controls, validity and ethics.
评价应讨论方法、样本、控制、效度和伦理的优缺点。
Common error: giving only a definition of validity without explaining how a study has high or low validity. Another error is using the word ‘proof’ when psychology studies provide support or evidence, not proof.
10. Common Mistakes in 6/8-Mark Questions | 6/8 分题常见错误
Extended answers require a clear structure: define the key term, describe the study or theory, apply it to the question, and evaluate with strengths and weaknesses. Many students lose marks by only describing the procedure.
Command words control what the examiner expects. ‘Describe’ asks for detail of procedure or findings; ‘Explain’ asks for reasons or mechanisms; ‘Evaluate’ asks for strengths and weaknesses; ‘Discuss’ combines both.
For ‘describe’, include aim, method, sample, procedure and results in a concise sequence.
对于 ‘describe’，按目的、方法、样本、程序和结果顺序简要作答。
For ‘evaluate’, use evidence-based critique, not personal opinion such as ‘I think it was good’.
对于 ‘evaluate’，使用基于证据的批评，而不是 ‘我觉得很好’ 这类个人意见。
12. Revision Checklist | 复习清单
Before the exam, check that you can define and use each core study, link it to its psychological theory, state the IV and DV, identify one strength and one weakness, and connect it to ethical or methodological issues.
The CAIE IGCSE Psychology syllabus rewards precise use of psychological terminology. Many marks are lost not because candidates do not understand the studies, but because they confuse ‘aim’ with ‘hypothesis’, ‘independent variable’ with ‘dependent variable’, or ‘reliability’ with ‘validity’. This guide groups essential terms into logical clusters and gives you memory hooks, exam-style definitions and rapid self-test prompts so you can move from recognition to confident application.
In CAIE IGCSE Psychology, command terms such as ‘define’, ‘describe’, ‘explain’ and ‘evaluate’ ask you to use technical vocabulary accurately. A definition that uses the correct term but lacks precision, such as saying ‘the IV is what you change’ without mentioning the DV, may gain only partial credit.
The syllabus includes two main papers: Paper 1 tests knowledge and understanding through short-answer and scenario questions, while Paper 2 tests research methods and data handling. Both papers expect you to identify, apply and evaluate psychology terminology.
A useful strategy is to learn terms in pairs or opposites: aim and hypothesis, independent and dependent variable, reliability and validity, qualitative and quantitative data.
一个有用的策略是成对或对比学习术语：目标与假设、自变量与因变量、信度与效度、定性数据与定量数据。
2. The Research Process: From Aim to Hypothesis | 研究流程：从目标到假设
The aim is a general statement of what a study intends to investigate. It often begins with ‘To investigate whether…’ and does not make a precise prediction.
研究目标是一项研究打算调查什么的一般性陈述。它通常以“旨在调查是否……”开头，不作出精确预测。
A hypothesis is a testable, directional or non-directional prediction about the relationship between variables. A directional hypothesis states the expected direction, e.g. ‘participants who sleep more will recall more words’.
A non-directional hypothesis predicts a difference or relationship but not the direction, e.g. ‘there will be a difference in recall between high-sleep and low-sleep participants’.
非方向性假设预测存在差异或关系但不说明方向，例如“高睡眠组与低睡眠组参与者在回忆上会存在差异”。
The null hypothesis states that any observed difference or relationship is due to chance; it is the statement researchers test statistically.
零假设指出，任何观察到的差异或关系都是由偶然因素造成的；它是研究者进行统计检验的陈述。
3. Variables: Independent, Dependent and Extraneous | 变量：自变量、因变量与额外变量
The independent variable (IV) is the factor the researcher manipulates or changes to see its effect. The dependent variable (DV) is the factor the researcher measures.
自变量（IV）是研究者操纵或改变以观察其效果的因素。因变量（DV）是研究者测量的因素。
A quick memory hook: ‘I change the IV, then I measure the DV’. In an experiment on noise and memory, the IV is noise level, and the DV is number of words recalled.
Extraneous variables are any variables other than the IV that could affect the DV if not controlled. When an extraneous variable changes systematically with the IV, it becomes a confounding variable.
额外变量是除 IV 外可能影响 DV 的任何变量，如果不加以控制。当额外变量与 IV 系统地一起变化时，它就成为混淆变量。
You should also be able to operationalise variables: state exactly how the IV and DV are manipulated or measured, e.g. ‘noise at 80 dB’ rather than just ‘noise’.
你还应该能够对变量进行操作化定义：准确说明 IV 和 DV 如何被操纵或测量，例如“80 分贝的噪音”而不只是“噪音”。
4. Sampling and Participants | 抽样与参与者
The population is the entire group a researcher is interested in, while the sample is the smaller group selected from that population to take part.
总体是研究者感兴趣的整个群体，而样本是从总体中选出参与研究的较小群体。
Random sampling gives every member of the population an equal chance of being selected, which reduces sampling bias but can be time-consuming.
随机抽样让总体中每个成员都有均等被选中的机会，这可以减少抽样偏差，但可能耗时。
Opportunity sampling uses people who are available at the time, such as students in a corridor. It is quick and convenient but may produce a biased, unrepresentative sample.
机会抽样使用当时容易接触到的人，例如走廊里的学生。它快速方便，但可能产生有偏差、不具代表性的样本。
Volunteer sampling relies on participants responding to an advert or request. It can attract highly motivated participants, but they may not represent the wider population.
志愿者抽样依靠参与者回应广告或请求。它可能吸引高度积极的参与者，但他们不一定代表更广泛的总体。
5. Experimental Designs and Methods | 实验设计与研究方法
Independent measures design uses different participants in each condition of the IV. It avoids order effects but participant variables may differ between groups.
独立组设计在 IV 的每个条件下使用不同的参与者。它避免了顺序效应，但各组之间的参与者变量可能不同。
Repeated measures design uses the same participants in all conditions. It controls participant variables but may create order effects such as practice or fatigue.
Matched pairs design matches participants on key characteristics, then places one of each pair in each condition. It reduces participant variables without order effects, but matching is difficult and time-consuming.
The three main research methods are experiments, self-reports and observations. Experiments manipulate an IV and measure a DV; self-reports gather opinions and experiences; observations record behaviour in natural or controlled settings.
三种主要研究方法是实验、自我报告和观察。实验操纵 IV 并测量 DV；自我报告收集意见和经历；观察记录自然环境或控制环境中的行为。
6. Self-Report Methods: Questionnaires and Interviews | 自我报告法：问卷与访谈
A questionnaire is a written set of questions. It can use open questions, which produce qualitative data, or closed questions, which produce quantitative data.
问卷是一组书面问题。它可以使用开放式问题，产生定性数据；也可以使用封闭式问题，产生定量数据。
Rating scales such as Likert scales ask participants to indicate agreement from ‘strongly disagree’ to ‘strongly agree’. They generate numerical data but may be affected by response bias.
An interview involves direct questioning. Structured interviews use fixed questions asked in the same order; unstructured interviews are more like conversations and can explore issues in depth.
Structured interviews are easier to compare, while unstructured interviews collect richer, more detailed qualitative data but are harder to analyse.
结构化访谈更容易比较，而非结构化访谈收集更丰富、更详细的定性数据，但分析起来更困难。
7. Observations and Case Studies | 观察法与案例研究
Observation involves watching and recording behaviour. Covert observation is carried out without participants’ knowledge; overt observation is open and participants know they are being watched.
Naturalistic observation takes place in the participant’s usual environment, giving high ecological validity. Controlled observation takes place in an artificial setting, allowing more control over variables.
A case study is an in-depth investigation of one person, group or event, often using multiple methods such as interviews, observations and tests. It provides rich detail but is hard to generalise.
8. Correlation Terms and Data Analysis | 相关术语与数据分析
Correlation measures the strength and direction of a relationship between two variables. It does not prove causation.
相关测量两个变量之间关系的强度和方向。它不能证明因果关系。
A positive correlation means as one variable increases, the other tends to increase. A negative correlation means as one variable increases, the other tends to decrease.
正相关意味着一个变量增加时，另一个变量也趋于增加。负相关意味着一个变量增加时，另一个变量趋于减少。
Correlation coefficients range from −1 to +1. A coefficient close to +1 or −1 indicates a strong relationship; close to 0 indicates a weak or no relationship.
Quantitative data are numerical and easier to analyse using averages and graphs. Qualitative data are descriptive and reveal meanings, opinions and experiences but are harder to summarise.
9. Reliability, Validity and Objectivity | 信度、效度与客观性
Reliability means consistency. If a study is repeated and similar results are obtained, it is reliable. Validity means accuracy: does the study measure what it claims to measure?
Ecological validity is the extent to which findings can be generalised to real-life settings. Population validity concerns whether the sample represents the target population.
生态效度是研究结果能被推广到现实生活环境的程度。总体效度涉及样本是否代表目标总体。
Objectivity means data and conclusions are not influenced by personal feelings or biases. Subjectivity means personal opinions or interpretations affect the data or conclusions.
客观性意味着数据和结论不受个人感受或偏见的影响。主观性意味着个人意见或解释影响数据或结论。
10. Ethics Vocabulary You Must Know | 必须知道的伦理词汇
Informed consent means participants agree to take part after being told the aims, procedures, and their rights. Deception should be avoided unless necessary and justified.
知情同意指参与者在被告知研究目的
Published by TutorHao | IGCSE Psychology Revision Series | aleveler.com
📚 IGCSE CAIE Psychology: Case Study Exam Practice | IGCSE CAIE 心理学：案例分析实战演练
In IGCSE CAIE Psychology, case-based questions ask you to apply research method knowledge to a short scenario. This guide gives you a practical drill to deconstruct scenarios, identify variables, evaluate ethics, and write high-band answers.
A case scenario question usually describes a piece of psychology research in one or two paragraphs. You may be asked to identify the aim, hypothesis, variables, sample, design, results, or ethical issues, and then evaluate the study.
Examiners do not want a summary of the scenario. They want you to use precise psychology terminology to explain how the study works and how it could be improved.
“Describe” requires a factual account: what happened, what was measured, what the results showed. Do not add evaluation in a describe question.
“描述”要求给出事实性说明：发生了什么、测量了什么、结果显示了什么。描述题中不要加入评价。
“Explain” requires reasons and mechanisms: why a result occurred or why a method was chosen. Use psychological concepts such as demand characteristics, social desirability bias, or operant conditioning.
“Evaluate” requires strengths and weaknesses, often linked to validity, reliability, generalisability, ethics, and practical applications.
“评价”要求写出优点和缺点，通常与效度、信度、可推广性、伦理和实际应用相联系。
3. Deconstructing a Study: Aim, IV, DV and Hypotheses | 拆解研究：目的、自变量、因变量与假设
Every scenario contains an aim: a statement of what the researcher wants to investigate. For example, “to investigate whether background music affects memory recall in Year 10 students.”
The independent variable (IV) is the factor the researcher manipulates or changes, such as music present vs absent. The dependent variable (DV) is the factor measured, such as number of words correctly recalled.
A hypothesis must be testable and specific. An alternative hypothesis predicts a difference or relationship; a null hypothesis predicts no difference or relationship.
假设必须可检验且具体。备择假设预测存在差异或关系；零假设预测不存在差异或关系。
Use this formula: “Participants in condition A will score significantly higher/lower on [DV] than participants in condition B.”
使用以下句式：”在[因变量]上，条件 A 的参与者得分显著高于/低于条件 B 的参与者。”
4. Sampling Methods in Context | 情境中的抽样方法
Case scenarios often state how participants were obtained. Opportunity sampling uses people who are easily available, such as students in one class. It is quick but often unrepresentative.
Random sampling gives every member of the target population an equal chance of selection. It reduces sampling bias but is difficult to achieve in real school settings.
随机抽样使目标人群中的每个成员都有平等被选中的机会。它减少抽样偏差，但在真实学校环境中难以实现。
Self-selected sampling relies on volunteers. This may produce a motivated sample, but it can suffer from volunteer bias and demand characteristics.
自选抽样依赖志愿者。这可能产生积极性较高的样本，但可能存在志愿者偏差和需求特征。
In an exam, always link the sampling method to the scenario: say which population is being represented and whether the sample is likely to be biased.
考试中要始终把抽样方法与情境联系起来：说明所代表的总体是谁，以及样本是否可能存在偏差。
5. Research Designs and Controls | 研究设计与控制
Independent measures design uses different participants in each condition. Repeated measures design uses the same participants in all conditions.
独立组设计在每个条件下使用不同的参与者。重复测量设计在所有条件下使用相同的参与者。
Repeated measures controls for participant variables, but it may create order effects such as practice or fatigue. Counterbalancing helps reduce order effects.
重复测量设计控制了参与者变量，但可能产生顺序效应，如练习效应或疲劳效应。平衡法有助于减少顺序效应。
Standardised instructions and controlled extraneous variables increase internal validity. For example, all participants should hear the same list of words at the same volume.
标准化指导语和控制额外变量可提高内部效度。例如，所有参与者应听到相同的单词列表，音量相同。
6. Data Types and Descriptive Statistics | 数据类型与描述统计
Qualitative data is non-numerical, such as interview transcripts or observations. Quantitative data is numerical, such as test scores or reaction times.
定性数据是非数字的，如访谈记录或观察记录。定量数据是数字的，如测试分数或反应时间。
Measures of central tendency include mean, median, and mode. The mean is sensitive to outliers; the median is better for skewed data.
集中趋势测量包括平均数、中位数和众数。平均数对异常值敏感；中位数更适合偏态数据。
Range is a simple measure of spread: highest score minus lowest score. It can be distorted by one extreme value.
极差是简单的离散程度测量：最高分减最低分。它可能被一个极端值扭曲。
In case-based questions, you may be asked to read a small table and choose the most appropriate statistic. Always justify your choice.
在案例题中，你可能需要阅读一个小表格并选择最合适的统计量。一定要说明选择的理由。
7. Ethical Issues in Case Scenarios | 案例场景中的伦理问题
Common ethical issues include lack of informed consent, deception, lack of right to withdraw, lack of confidentiality, and risk of psychological harm.
常见伦理问题包括缺乏知情同意、欺骗、缺乏退出权、缺乏保密性以及存在心理伤害风险。
In a school-based obedience scenario, participants may feel distressed after being asked to give fake electric shocks. This must be addressed through debriefing and the right to withdraw.
在学校情境的服从研究中，参与者被要求施加假电击后可能感到痛苦。必须通过事后解释和退出权来解决。
Ethical guidelines are not just a box-ticking exercise. Examiners award marks for explaining why a safeguard protects the participant from actual harm.
伦理准则不只是走形式。考官会给那些解释保障措施为何能保护参与者免受实际伤害的答案加分。
8. Evaluating a Scenario with AO3 Skills | 用 AO3 技能评价情境
Evaluation means discussing what improves or weakens the study. Use the acronym GRAVE: Generalisability, Reliability, Applicability, Validity, and Ethics.
For example, a laboratory experiment may have high control and internal validity, but low ecological validity because the task is artificial.
例如，实验室实验可能有较高的控制和内部效度，但由于任务不自然，生态效度较低。
Always balance one strength with one weakness. Use phrases like “However, this study is limited because…” to show critical thinking.
始终用一个优点平衡一个缺点。使用”然而，该研究的局限性在于……”等表述来体现批判性思维。
9. Worked Example 1: Obedience in a Classroom | 实例一：课堂中的服从研究
Scenario: A psychology teacher wanted to investigate whether students would obey an unreasonable instruction from a person in a lab coat. Twenty Year 11 students were selected by opportunity sampling. They were told to give a “teacher” a fake electric shock every time the teacher made a mistake. The “teacher” was actually a confederate. The researcher recorded the highest shock level each participant gave.
Identification task: The IV is the presence of the unreasonable instruction from an authority figure; the DV is the highest shock level given. This is an independent measures design because each participant experiences only one condition.
识别任务：自变量是权威人物发出的不合理指令；因变量是参与者
Published by TutorHao | IGCSE Psychology Revision Series | aleveler.com
This unit mock paper is designed to mirror the Cambridge IGCSE Psychology (0455) structure, mixing short-answer items on core approaches with scenario-based research methods questions. It covers the biological, cognitive, social and learning approaches, so you can rehearse the exact assessment objectives before the real examination.
Each section below reviews a representative question, unpacks the marking scheme, and shows how to turn a vague answer into a high-band response.
下面每个部分选取一道代表性题目，拆解评分标准，并示范如何把一个含糊答案升级为高分答案。
1. Mock Paper Overview | 模拟卷概览
The paper usually opens with two or three short knowledge-based questions, then moves to a 6-mark extended response, and finishes with a methods-data scenario. This structure reflects the real Paper 1 and Paper 2 balance between core studies and research evaluation.
试卷通常先出现两至三道简短知识题，接着是一道 6 分扩展题，最后以研究方法与数据情境题收尾。这一结构与真实 Paper 1 和 Paper 2 在核心研究与研究评价之间的平衡保持一致。
Use the first minute of the mock to scan every question. Mark the command words, underline the mark allocations, and decide which questions need definitions, explanations or evaluations.
Before answering any question, highlight the command word. In CAIE IGCSE Psychology, state asks for a brief fact, describe needs detail, explain adds reason, and evaluate requires strengths, weaknesses or alternative explanations.
Mark allocation is your map: a 2-mark “describe” question needs two linked points; a 6-mark “explain and evaluate” question needs at least one developed explanation and one balanced evaluation point.
Sample question: “Describe one study of brain scanning and explain what it suggests about localisation of function.” This type of item tests your knowledge of method, findings and conclusion, not just the name of a brain region.
A strong answer identifies a named technique such as fMRI, states that it measures oxygenated blood flow, links activity to a region such as the amygdala or hippocampus, and then explains that when a cognitive task activates that region, it supports the idea that this area has a specialised role.
You do not need to explain every technical detail of the scanner. The mark scheme rewards selection of relevant detail: technique, task, brain region, and a conclusion about localisation.
4. Model Answer Breakdown for Question 1 | 第一题模型答案拆解
Model answer frame: “One study used fMRI scans while participants viewed emotional images. The amygdala showed increased activation when images were highly emotional rather than neutral. This suggests localisation because a specific emotional process was linked to a specific brain structure, not the whole brain.”
Examiner tip: always include the technique, the task, the finding and the conclusion. Most candidates lose marks by naming the technique but failing to connect the result to the localisation claim.
If the question asks for one study, choose one named study and stay with it. Do not list three studies in general terms; depth and linkage matter more than breadth.
Sample question: “Explain the multi-store model of memory and evaluate it using one study.” This question combines knowledge of a model with critical thinking about evidence.
The multi-store model includes sensory register, short-term memory and long-term memory. Information moves by attention and rehearsal. STM has limited capacity and duration, while LTM has unlimited capacity and can be permanent.
6. Model Answer Breakdown for Question 2 | 第二题模型答案拆解
For evaluation, many students use the serial position effect or the case of HM. A good evaluative point needs to say what the evidence shows and whether it supports or challenges the model.
Example: “The serial position effect supports separate STM and LTM stores: participants recall more words from the beginning (LTM) and end (STM) of a list. However, the model may be too simple because it treats STM as a single passive store, whereas Baddeley’s working memory model shows STM has several active components.”
Always link the study to the model. Do not just describe the study: make the support or challenge explicit by using phrases such as “this supports the idea that…” or “this challenges the assumption that…”.
一定要把研究联系到模型。不要只描述研究，要通过“这支持了……观点”或“这质疑了……
Published by TutorHao | IGCSE Psychology Revision Series | aleveler.com
This quick reference handbook summarises the essential descriptive statistics formulas and key theoretical models that appear in the CAIE IGCSE Psychology syllabus. It is designed for rapid revision before Paper 1 and Paper 2, linking numerical skills to core psychological explanations, studies and evaluations.
本速查手册汇总了 CAIE IGCSE 心理学课程中的核心描述统计公式与关键理论模型，适合 Paper 1 与 Paper 2 考前快速复习，帮助考生将数字技能与心理学核心解释、经典研究和评价联系起来。
1. Descriptive Statistics: Mean, Median, Mode and Range | 描述统计：平均数、中位数、众数与全距
The mean is calculated by adding all scores and dividing by the number of scores. It uses every value in the data set but can be distorted by extreme outliers.
平均数是将所有分数相加后除以分数的个数。它使用数据中的每一个数值，但容易被极端异常值拉偏。
Mean = ΣX ÷ n
Here ΣX means the sum of all raw scores, and n is the number of participants or observations. The median is the middle value when data are arranged in ascending order. If there are two middle numbers, add them and divide by two.
The mode is the most frequent value in a data set. A data set can have one mode, more than one mode, or no mode at all. The range is the difference between the highest and lowest scores.
For example, in the data set 3, 5, 7, 9, 11, the mean is 7, the median is 7, there is no mode, and the range is 8. This shows that the mean and median can agree when the distribution is symmetrical.
2. Percentages, Ratios and Proportions | 百分比、比率与占比
IGCSE Psychology questions often ask you to calculate the percentage of participants who give a certain response. Divide the frequency of the response by the total number of participants, then multiply by 100.
A ratio compares two quantities. For example, if 12 participants conformed and 8 did not, the conforming-to-nonconforming ratio is 12:8, which can be simplified to 3:2. Proportions express a part of a whole as a decimal between 0 and 1. Divide the part by the whole.
These three methods are common in research methods questions: they allow you to compare conditions, summarise questionnaire data and report findings clearly.
这三种方法在研究方法类题目中很常见，可以用来比较不同条件、总结问卷数据并清晰地报告研究结果。
3. Measures of Spread: Standard Deviation Basics | 离散程度：标准差基础
Standard deviation measures how much scores spread out around the mean. A small standard deviation means most scores are close to the mean; a large standard deviation means scores are widely scattered.
标准差测量分数围绕平均数的分散程度。标准差小说明大多数分数接近平均数；标准差大说明分数分布很分散。
In IGCSE Psychology you are not usually required to compute standard deviation from raw data by hand for a full data set, but you must interpret what it shows and compare distributions using it.
Here x is each individual score, mean is the arithmetic mean, and n is the number of scores. The symbol Σ means sum, and √ means square root. If one condition has a lower standard deviation than another, its results are more consistent.
其中 x 表示每个单独的分数，mean 表示算术平均数，n 表示分数个数。符号 Σ 表示求和，√ 表示平方根。如果一种条件的标准差低于另一种条件，说明该条件的结果更一致。
4. Multi-Store Model of Memory | 记忆的多存储模型
The Multi-Store Model of Memory (Atkinson and Shiffrin, 1968) states that memory consists of three separate stores: sensory memory, short-term memory (STM) and long-term memory (LTM). Information moves between stores through attention and rehearsal.
IGCSE CAIE Psychology rewards students who can move beyond memorising study summaries and start using psychological evidence, terminology, and evaluation in a precise, exam-focused way. This guide shares the habits and strategies used by consistent high scorers, based on the Cambridge International syllabus and repeated patterns in past papers.
1. Start With the Syllabus, Not the Textbook | 从大纲开始，而不是从课本开始
High scorers treat the official CAIE syllabus as the map for every revision session. They highlight the exact content points for each approach — biological, cognitive, social, and learning — and tick them off as they master the associated core studies, research methods, and evaluation issues.
Instead of reading the textbook cover to cover, they use the learning objectives as questions. For example, if the syllabus says ‘describe the main features of the cognitive approach,’ they write a model answer before checking the textbook. This active method exposes gaps early.
Print the syllabus and keep it beside your study notes.
打印大纲并放在学习笔记旁边。
Colour-code the four approaches so your brain links studies to approaches.
给四个流派标上不同颜色，让大脑把研究和方法流派联系起来。
2. Turn the Core Studies Into Retrieval Grids | 把核心研究变成回忆网格
CAIE IGCSE Psychology questions frequently ask for the aim, method, sample, procedure, results, conclusion, strengths, and weaknesses of named studies. High scorers condense each core study onto one A4 retrieval grid with these headings and then practise recalling the grid from memory.
A useful routine is called ‘blank-page retrieval’: after studying one study, close all notes and write down the eight headings, then fill in every cell. This transfer from recognising information to producing it is what separates A* candidates from passive readers.
For example, a Dement and Kleitman grid might have the following: aim — to investigate whether eye movements relate to dream content; method — laboratory experiment; sample — 9 adult participants; and key result — REM sleep was strongly associated with dream recall.
3. Master Command Words Before Writing | 在动笔前掌握指令词
Mark schemes reward candidates who answer exactly what the command word asks. ‘Describe’ requires factual details, ‘explain’ requires reasons or mechanisms, and ‘evaluate’ requires strengths and weaknesses, often supported by evidence or comparisons.
📚 IGCSE CAIE Psychology: In-depth Past Paper Analysis | IGCSE CAIE 心理学：历年真题深度解析
Past papers are the most reliable resource for IGCSE CAIE Psychology because they reveal the exact style, depth and command-word expectations of the final assessment. This article analyses recurring question types, mark-scheme language, common examiner criticisms and practical revision strategies drawn from recent series.
1. Understanding the CAIE IGCSE Psychology Paper Structure | 了解 CAIE IGCSE 心理学试卷结构
Cambridge IGCSE Psychology is assessed through two written papers: Paper 1 and Paper 2. Paper 1 is built around core studies and psychological knowledge, while Paper 2 focuses on research methods, data handling and practical scenarios.
In most series, Paper 1 carries more weighting than Paper 2, so candidates should not neglect core studies such as Bartlett, Dement and Kleitman, Milgram, Bandura, Piliavin and Loftus and Palmer.
在多数考季中，试卷一的权重高于试卷二，因此考生不能忽视核心研究，例如 Bartlett、Dement and Kleitman、Milgram、Bandura、Piliavin 和 Loftus and Palmer 等经典研究。
Both papers include short-answer questions and extended-response questions. Extended responses often require description, explanation or evaluation, and they are marked by levels rather than by simple points alone.
两份试卷都包含简答题和拓展题。拓展题通常要求描述、解释或评价，并采用等级评分，而不仅仅是按点给分。
2. Decoding Command Words | 破解指令词
Many marks are lost because candidates describe when they are asked to evaluate, or explain when they are only asked to identify. The command word is the single most important word in any question stem.
Give a correct name, finding or fact without explanation
给出正确名称、结果或事实，无需解释
Describe
Give detailed characteristics or procedures; no evaluation needed
给出详细特征或过程，无需评价
Explain
Give reasons, processes or causes
给出原因、过程或机制
Evaluate
Discuss strengths and weaknesses, support with evidence, give a judgement
讨论优缺点，引证支持，并给出判断
Compare
Show similarities and differences explicitly
明确指出相同点和不同点
Suggest
Apply knowledge to a new or unfamiliar scenario
将知识应用到新的或不熟悉的情境中
Discuss
Present a balanced argument with a clear conclusion
提出正反两面的论点并给出明确结论
Before writing, underline the command word and identify whether the examiner wants knowledge, application or evaluation. This single habit can improve the accuracy of every answer.
动笔前，划出指令词，判断考官要求的是知识、应用还是评价。仅这一个习惯就能提高每道题的作答准确性。
3. High-Frequency Content in Past Papers | 历年真题高频内容
The following topics appear regularly across CAIE IGCSE Psychology past papers, especially in Paper 1. Each topic is usually linked to one or more core studies and to broader psychological debates such as nature versus nurture or ethics.
Piliavin, bystander intervention, diffusion of responsibility
Piliavin、旁观者干预、责任分散
Research methods
IV, DV, sampling, ethics, reliability, validity
自变量、因变量、抽样、伦理、信度、效度
Because questions often ask you to use a core study to support an explanation, you should know at least the aim, method, results and conclusion of each named study.
4. How Mark Schemes Reward Evaluative Thinking | 评分标准如何奖励评价性思维
Extended responses in CAIE IGCSE Psychology are usually marked by levels. A high-level answer demonstrates both accurate knowledge and the ability to apply, evaluate or justify a point.
For example, a 6-mark evaluate question might award three levels: Level 1 for a simple strength or weakness, Level 2 for a developed strength and weakness with some linking, and Level 3 for a balanced argument with explicit evidence and a final judgement.
Short-answer mark schemes often reject vague answers. “Memory is affected by time” is too vague unless it is linked to trace decay or interference. “Milgram found people obeyed” is weaker than “Milgram found that 65% of participants obeyed to the full 450-volt shock level”.
In CAIE IGCSE Psychology (0471), practical and experimental skills are assessed through written questions rather than a laboratory practical paper. You are expected to apply research methods to novel scenarios, evaluate studies, and interpret data. Success depends on precision with terminology, procedural controls, and ethical reasoning.
1. Know Where Practical Skills Are Assessed | 明确实验/实践技能在哪里考查
The IGCSE Psychology syllabus does not include a separate practical workbook or lab examination. Instead, research methods and experimental design appear mainly in Paper 2, where short-answer and essay questions may present a study, ask you to identify variables, suggest controls, or evaluate the procedure.
IGCSE 心理学大纲不设单独的实践记录本或实验室考试；研究方法与实验设计主要出现在 Paper 2，其中的简答与论文题会给出一个研究情境，要求你识别变量、提出控制方法或评价程序。
Treat every research scenario as a mini-experiment. Read the stem carefully, highlight the aim, sample, procedure, and results before answering. Marks are awarded for using psychological terminology accurately.
An aim states the purpose of the study in broad terms, such as ‘to investigate whether music affects memory’. A hypothesis must be a precise, testable prediction stating the expected effect of the independent variable on the dependent variable.
For the CAIE exam, you should be able to write an experimental hypothesis and a null hypothesis. A one-tailed hypothesis predicts a direction (e.g. ‘music improves recall’), while a two-tailed hypothesis does not (e.g. ‘music affects recall’).
Always include the IV and DV in the hypothesis, and operationalise them. For example: ‘Participants who listen to instrumental music during encoding will recall more words from a 20-word list than participants who encode in silence.’
3. Identifying Independent and Dependent Variables | 识别自变量与因变量
The independent variable (IV) is the factor manipulated by the researcher or compared between conditions. The dependent variable (DV) is the outcome measured. In an experiment on music and memory, the IV is presence or absence of music; the DV is number of words correctly recalled.
Operationalisation means defining variables so they can be manipulated or measured objectively. Avoid vague phrases such as ‘memory’ or ‘happiness’; instead say ‘number of words recalled from a 20-item list’ or ‘score on the Positive Affect Scale from 1 to 10’. This makes a study replicable.
4. Controlling Extraneous and Confounding Variables | 控制额外变量与混淆变量
Extraneous variables are any factors other than the IV that could affect the DV, such as noise, time of day, or participant mood. A confounding variable is an extraneous variable that varies systematically with the IV, making it impossible to separate their effects.
Standardised instructions, controlled room conditions, and use of identical materials reduce extraneous variables. Random allocation to conditions helps prevent participant differences from becoming confounds.
In repeated measures designs, order effects can act as confounds. Counterbalancing (half participants do condition A then B, half do B then A) controls this.
在重复测量设计中，顺序效应可能成为混淆变量；采用抵消平衡(counterbalancing，即一半参与者先做 A 后做 B，另一半先做 B 后做 A)可以控制。
In an independent groups design, different participants take part in each condition. This avoids order effects but can suffer from participant variables because individuals differ between groups.
Preparing for CAIE IGCSE Psychology is not just about memorising key studies; it is about building a clear timeline, using evidence-based revision techniques, and learning to answer questions in the way examiners expect. This guide offers a practical 12-week plan and subject-specific strategies for Papers 1 and 2.
1. Know the Syllabus and Exam Structure | 了解大纲与考试结构
Start by downloading the correct syllabus for your exam code. For CAIE IGCSE Psychology, the most common syllabus is 0471 (or 0990 for 9-1 grading). The qualification has two papers: Paper 1 Core Studies (1 hour 30 minutes, 80 marks, 50%) and Paper 2 Research Methods (1 hour 30 minutes, 60 marks, 50%). Paper 1 includes short-answer questions on core studies and one compulsory 9-mark evaluation question. Paper 2 tests methodology, data handling, and practical scenarios. Knowing the structure helps you allocate time and avoid surprises.
The syllabus also lists the core studies and key terms. For 0471, these are grouped under four approaches: biological, cognitive, developmental, and social. Paper 1 questions can mix approaches, so you need to know which study belongs to which approach and why. For example, Dement and Kleitman links to the biological approach, while Loftus and Palmer links to the cognitive approach.
2. Audit Your Strengths and Weaknesses | 评估你的优势与薄弱环节
Before you make a timetable, complete a diagnostic audit. List every core study from the syllabus and rate your confidence from 1 to 5 for: aim, method, results, conclusion, strengths and weaknesses. Do the same for research methods topics such as experimental design, sampling, ethics, and data analysis. This audit prevents ‘comfort revision’ where you keep going over topics you already know.
Once you have your ratings, sort topics into three columns: confident, unsure, and weak. Your weekly plan should give weak topics the most time, unsure topics moderate time, and confident topics only retrieval practice. This keeps your revision balanced and targeted rather than driven by anxiety or habit.
3. Build a 12-Week Revision Timeline | 制定 12 周复习时间表
A realistic timeline is usually 10-12 weeks. Split it into three phases: Phase 1 (weeks 1-4) content consolidation; Phase 2 (weeks 5-8) active recall and application; Phase 3 (weeks 9-12) past papers and timed practice. Within each week, allocate 4-5 sessions of 60-90 minutes rather than one long block. Use a table to map topics to weeks so that every core study is covered at least twice.
The timeline is not rigid; if a mock exam shows a weak area, adjust the plan. The key is to start early enough to allow at least two full rounds of retrieval for every core study.
4. Weekly Study Routine: The 90-Minute Block | 每周学习常规：90 分钟模块
Each study block should include three parts: a 10-minute retrieval warm-up, a 60-minute focused task, and a 20-minute self-test. For example, start by writing down everything you remember about Loftus and Palmer without notes; then revise the study using your notes; finally answer three short-answer questions under exam conditions. This structure uses the testing effect and reduces passive rereading.
0-10 min: retrieval warm-up without notes – 提取热身，不看书
10-70 min: focused revision of one core study or methods topic – 专注复习一个核心研究或方法主题
70-90 min: self-test, mark own answers, note gaps – 自测、自行打分、记录知识空白
If you miss a session, do not double the next session; just resume the plan. Consistency matters more than intensity, because spaced repetition depends on regular contact with the material.
5. Master Core Studies with Active Recall | 用主动回忆掌握核心研究
Core studies are the heart of Paper 1. For each study, create a retrieval grid with the headings: author and year, psychology being investigated, aim, sample, method and design, procedure, results, conclusion, strengths and weaknesses. Test yourself by covering one column and recalling it aloud or in writing. Do not rewrite full notes repeatedly; instead, turn them into questions such as ‘What was the independent variable in Dement and Kleitman?’ and ‘How does the study link to the biological approach?’
Use comparison tables to link studies. For instance, place Baron-Cohen, Andrade, and Bandura side by side and compare their samples, methods, and findings. The ability to compare studies is not only useful for short-answer questions but also strengthens your 9-mark evaluation because you can explain why one study is more ecologically valid or ethical than another.
CAIE uses command terms that tell you exactly what to do: ‘describe’ means give details; ‘explain’ means give reasons or mechanisms; ‘evaluate’ means make a judgement using strengths and weaknesses; ‘suggest’ means apply your knowledge to a new situation. In Paper 1, short-answer questions are marked for accuracy and relevance, so do not write an essay when two sentences are enough. In Paper 2, read the stem carefully and answer the exact command term.
For Paper 2, pay attention to words like ‘calculate’, ‘draw’, ‘state’, and ‘justify’. A calculation question only needs the correct numerical answer with the right units; a justify question needs a reason. Many marks are lost because candidates describe when they should evaluate, or explain when they should identify. Underline the command term in every question before answering.
7. Tackle the 9-Mark Evaluation Question | 攻克 9 分评价题
The 9-mark evaluation question in Paper 1 asks you to evaluate a core study. A strong answer follows a clear structure: one paragraph on strengths, one on weaknesses, and a short conclusion. Use evidence from the study itself, such as controls, sample size, ecological validity, ethics, and reliability. Be specific: name the study, state the strength or weakness, explain why it matters, and link to the question. Avoid generic phrases like ‘it is a good study’ without justification.
Use the ‘point, evidence, explanation, link’ structure for each paragraph. For example, a point might be: ‘Bandura et al. used a controlled laboratory procedure.’ The evidence is the matched-participants design and standardised scripts. The explanation is that these controls increased internal validity because extraneous variables were reduced. The link connects back to the question, such as ‘this makes the findings more trustworthy as evidence for social learning theory.’
📚 IGCSE CAIE Psychology: Exam Technique and Mark Scheme | IGCSE CAIE 心理学：答题技巧与评分标准
To score well in CAIE IGCSE Psychology, you need more than memorised content. You must understand exactly what the examiner is looking for and how different question types are marked. This guide breaks down the paper structure, command words, extended-response technique, and the most common mark-scheme traps so you can turn your knowledge into full marks.
Before attempting any question, you need a clear mental map of the CAIE IGCSE Psychology papers. The written paper usually includes short-answer questions, stimulus-based questions, and extended-response questions. Many items also require you to refer directly to one of the core studies.
Paper 1: multiple-choice format, testing knowledge of core studies, methods, and ethics.
Paper 2: written format, using short-answer and extended-response questions based on core studies and research methods.
Component | 组成部分
What it tests | 考察内容
Question style | 题型
Paper 1 | 试卷一
Core studies, methods, ethics | 核心研究、方法、伦理
Multiple choice | 选择题
Paper 2 | 试卷二
Application, analysis, evaluation | 应用、分析、评价
Short answer and extended response | 简答与拓展题
Always check your current specification for the exact number of marks and timings, but the core principle does not change: written answers must be selective, precise, and rooted in psychological evidence.
2. Assessment Objectives and Command Words | 评估目标与指令词
CAIE Psychology mark schemes reward three assessment objectives: AO1 knowledge and understanding, AO2 application, and AO3 analysis and evaluation. A question that asks you to “evaluate” cannot be answered by a description alone, no matter how detailed it is.
Give strengths and weaknesses, support and challenge.
Suggest / Apply | 建议/应用
Use psychological knowledge to explain a new scenario.
Underline the command word in every question before you write, and plan your response around it. If you see “evaluate”, write at least one strength and one weakness explicitly.
3. Short-Answer Questions: Precision and Context | 简答题：精准作答与情境结合
Short-answer questions usually carry one or two marks, and the mark scheme expects one clear point per mark. Adding extra information is not penalised in most cases, but it wastes time and can create confusion if the extra content is inaccurate.
For example, if a question asks “State one ethical issue in Bandura et al.”, a one-mark answer could simply be “the children could not give fully informed consent”. You do not need to explain why; the mark scheme awards the point for identifying the issue accurately.
例如，如果题目问 “State one ethical issue in Bandura et al.”，一分答案可以是 “children could not give fully informed consent”。你不需要解释原因；评分标准只要求准确识别这一伦理问题。
If the question asks for a response “using the scenario”, always link your answer to the scenario. A generic statement such as “the sample was small” earns little unless you explain why this matters in the context of the question.
如果题目要求 “using the scenario” 作答，你的答案一定要联系情境。像 “the sample was small” 这样的笼统表述得分有限，除非你解释这一点在该题目情境下为什么重要。
4. Extended Response and PEEL | 拓展题与 PEEL 结构
Six-mark and longer questions require developed arguments. A useful structure is PEEL: Point, Evidence, Explanation, and Link. Start with a clear point, support it with evidence from a named study, explain what the evidence means, and link back to the question.
For an evaluation question, a safe six-mark structure is: one developed strength with evidence from a study; one developed weakness with a methodological issue or alternative interpretation; and, if the question allows, a brief conclusion.
Avoid writing everything you know about a study. The examiner is not rewarding memory alone, but the way you select and use information to answer the exact question demanded.
Research methods questions test your understanding of experimental design, variables, sampling, reliability, validity, and data analysis. You must be able to identify an independent variable, a dependent variable, and at least one extraneous variable in a described study.
Any other factor that could affect the DV if not controlled.
Reliability | 信度
Consistency of results or measurement over repeated tests.
Validity | 效度
The extent to which a test measures what it claims to measure.
When a question asks “Suggest a null hypothesis”, write a clear statement that predicts no difference or no relationship between the variables. Use the exact variables from the scenario rather than vague wording.
当题目要求 “Suggest a null hypothesis” 时，写一句明确指出变量之间没有差异或没有关系的陈述。要使用情境中的具体变量，而不是笼统的措辞。
If you are asked to improve a study, do not simply say “use a bigger sample”. Specify how the bigger sample would be recruited or how this would improve reliability or generalisability.
如果题目要求改进一项研究，不要只说 “use a bigger sample”。要说明更大的样本如何招募，或这样如何提高信度或推广性。
6. Ethical Issues and How to Use Them | 伦理问题及其运用
Ethical issues appear frequently in IGCSE Psychology, often as one-mark identification questions or as part of a longer evaluation. The main ethical guidelines are informed consent, right to withdraw, deception, confidentiality, protection from harm, and privacy.
When a question asks you to “explain one ethical issue” in a named study, you must describe the issue and why it is a problem. For example, in a study using deception, participants were not told the true aim, so their consent was not fully informed.
当题目要求在指定研究中 “explain one ethical issue” 时，你必须描述该问题并说明它为什么是一个问题。例如，在使用欺骗的研究中，参与者没有被告知真实目的，因此他们的同意并非完全知情。
Use ethical issues as evaluation points when a question asks you to evaluate a study. A study may be useful because it produced detailed data, but it may be ethically flawed because the participants could not give fully informed consent or were exposed to psychological stress.
7. Core Studies: Describing and Applying | 核心研究：描述与应用
The CAIE IGCSE Psychology syllabus includes named core studies that you must be able to describe and evaluate. For each study, build a compact revision card with five elements: aim, sample, method, results, and conclusion.
Who were the participants and how were they selected?
Method | 方法
What procedure, design, and controls were used?
Results | 结果
What were the main quantitative or qualitative findings?
Conclusion | 结论
What did the researchers conclude from the results?
When answering a question that says “Use the study by X to support your answer”, you must name the researcher and use specific details from that study. A generic research example will not meet the mark-scheme requirement.
当题目说 “Use the study by X to support your answer” 时，你必须写出研究者姓名，并使用该研究的具体细节。一个笼统的研究例子无法满足评分标准的要求。
Practice writing each core study description in four or five sentences. Your description should be accurate enough that another psychology student could recognise the study without seeing the title.
8. Data Response and Graph Interpretation | 数据题与图表解读
Data-response questions ask you to read a graph, table, or passage and then identify trends, compare conditions, or draw conclusions. Always read the axes, units, and title first, because many students lose marks by misreading what the data actually show.
When describing a graph, use comparative language: “As the delay increased, the number of words recalled decreased from 12 to 6.” Avoid simply listing numbers without a pattern.
If a question asks “What conclusion can be drawn?”, your answer must go beyond the data and state what the data suggest about memory, behaviour, or another psychological claim. Use the word “suggests” rather than “proves”.
如果题目问 “What conclusion can be drawn?”，你的答案必须超越数据本身，说明数据对记忆、行为或其他心理学观点意味着什么。要用 “suggests” 而不是 “proves”。
When asked to calculate a percentage or difference, show the calculation clearly using the numbers given. Use simple arithmetic steps and label your answer with the correct unit.
9. Common Mistakes and Mark-Scheme Traps | 常见失分点与评分陷阱
One of the biggest mistakes is ignoring the command word. Students often write a detailed description when the question asks them to evaluate, or they explain a theory when the question only asks for one identified feature. This means the answer cannot access the higher mark bands.
Another trap is failing to use the named study. If the question says “using the study by Dement and Kleitman”, you must explicitly refer to that study. Other evidence, however accurate, will not be rewarded because it does not answer the specific demand.
另一个陷阱是没有使用指定的研究。如果题目说 “using the study by Dement and Kleitman”，你必须明确提到该研究。其他证据再准确也不得分，因为它没有回应题目的具体要求。
Writing too much for a one-mark question is not directly penalised, but it steals time from later questions. Conversely, writing too little for a six-mark question means you have not demonstrated enough developed points, so the mark scheme caps your score.
Be careful with ethical evaluation. Saying “the study was unethical” is not enough. Name the specific guideline that was broken and explain the consequence for the participants or for the quality of the data.
进行伦理评价时要小心。只说 “the study was unethical” 是不够的。要说出违反了哪一条具体准则，并解释对参与者或数据质量造成的影响。
10. Time Management and Revision Strategy | 时间管理与复习策略
Use marks as a time guide. A rough rule is one minute per mark, so a six-mark question deserves around six minutes. Leave time at the end to check that every answer actually addresses the command word in the question.
Effective revision is active, not passive. Instead of re-reading notes, practise past-paper questions under timed conditions, then compare your answers with the mark scheme line by line.
When you use the mark scheme, do not just read the model answer. Ask yourself why each point earns a mark, how the examiner expects it to be phrased, and what you would need to change in your own response to gain full credit.
Finally, maintain a mistake log. Every time you lose a mark on a practice paper, record the reason: misread command word, omitted named study, weak evaluation, data misread, or time pressure. Review this log before the real exam so you do not repeat the same avoidable errors.
Cambridge IGCSE Psychology continues to change in important ways, and the 2026 examination will reward candidates who can apply theory to novel scenarios, evaluate evidence and use research methods accurately.
The trend is clear: the exam is moving away from simple recall toward flexible thinking, source use and balanced evaluation.
趋势很明确：考试正在从简单记忆转向灵活思考、资料使用和平衡评价。
1. The 2026 Syllabus Update in Context | 2026 年教学大纲更新背景
The Cambridge IGCSE Psychology syllabus (0266) has entered a more settled phase by 2026. The recent update shifted the subject toward application, source use and evaluation, rather than adding large amounts of new factual content.
For candidates this means the biggest change is not memorising more studies. It is learning how to use theories and evidence flexibly in response to unfamiliar scenarios.
The 2026 examination typically separates breadth and depth. One paper tests core knowledge and research methods through shorter, faster questions; the other tests application and evaluation through longer responses.
IGCSE CAIE Psychology introduces you to the scientific study of mind and behaviour. You need not only to describe key concepts but also to apply research methods, interpret data, and evaluate classic studies.
1. Research Methods: Variables and Hypotheses | 研究方法：变量与假设
Psychology is built on empirical evidence. In an experiment, the independent variable (IV) is the factor a researcher changes or manipulates, while the dependent variable (DV) is the factor measured to see the effect.
A hypothesis must be testable and clearly operationalised. For example, ‘Participants who drink 200 ml of coffee will name more words in a recall test than participants who drink 200 ml of water’ specifies both conditions and the DV.
Control variables: factors kept constant to avoid confounding
Operationalisation: defining variables so they can be measured or manipulated
自变量：被操纵的变量
因变量：被测量的变量
控制变量：为避免混淆而保持恒定的因素
操作性定义：对变量进行可测量或可操纵的定义
2. Experimental Designs and Controls | 实验设计与控制
There are three common experimental designs. Independent groups design uses different participants in each condition; repeated measures design uses the same participants in all conditions; matched pairs design matches participants on relevant characteristics before assigning them to conditions.
Order effects such as practice or fatigue | 顺序效应，如练习或疲劳
Matched pairs | 配对组
Reduces participant variables | 减少参与者个体差异
Matching is difficult and time-consuming | 匹配困难且耗时
Standardised procedures, random allocation, and counterbalancing are key controls. They increase internal validity by reducing investigator effects and demand characteristics.
标准化程序、随机分配和平衡顺序是重要的控制手段。它们通过减少研究者效应和需求特征来提高内部效度。
3. Sampling and Data Handling | 抽样与数据处理
A sample is a smaller group drawn from a target population. Random sampling gives every member an equal chance of selection, which reduces sampling bias. Opportunity sampling uses people who are available, while self-selected sampling relies on volunteers.
Psychologists collect quantitative data in numerical form and qualitative data in descriptive form. Measures of central tendency include mean, median, and mode. The range describes the spread of scores.
CAIE expects you to know ethical issues in research. Informed consent means participants should know the aim and procedures before agreeing. The right to withdraw allows participants to leave at any time.
Confidentiality protects personal data. Deception should be avoided unless necessary, and researchers must debrief participants afterwards. Protection from harm is essential, as seen in the ethical criticisms of Milgram’s obedience study and Zimbardo’s prison study.
5. Biological Psychology: Nervous System and Brain | 生物心理学：神经系统与大脑
The central nervous system consists of the brain and spinal cord. The peripheral nervous system carries messages between the central nervous system and the rest of the body. Neurons transmit information through electrical impulses and chemical signals.
Sensory neurons carry signals from receptors to the central nervous system; motor neurons carry signals from the central nervous system to muscles and glands; relay neurons connect sensory and motor neurons. Neurotransmitters cross the synapse to continue the signal.
Frontal lobe: decision-making and voluntary movement | 额叶：决策和随意运动
Temporal lobe: hearing and memory | 颞叶：听觉和记忆
Parietal lobe: touch and spatial awareness | 顶叶：触觉和空间意识
Occipital lobe: vision | 枕叶：视觉
Cerebellum: balance and coordination | 小脑：平衡与协调
6. Sleep and Dreams | 睡眠与梦
Sleep follows a repeating cycle of non-REM and REM stages. REM sleep involves rapid eye movement, increased brain activity, and vivid dreaming. Non-REM sleep includes deeper stages of physical restoration.
Dement and Kleitman (1957) found that participants awakened during REM sleep were more likely to report dreams than those awakened during non-REM sleep. This supports a link between REM and dreaming.
Explanations of dreaming include Freud’s wish-fulfilment theory, which views dreams as unconscious desires, and activation-synthesis theory, which suggests the brain tries to make sense of random neural firing. The IGCSE course expects you to compare these explanations rather than simply describe one.
7. Cognitive Psychology: Models of Memory | 认知心理学：记忆模型
The multi-store model of memory (Atkinson and Shiffrin, 1968) proposes three separate stores: sensory register, short-term memory, and long-term memory. Information moves between stores through attention and rehearsal.
Short-term memory has limited capacity around five to nine items and limited duration. Long-term memory has potentially unlimited capacity and duration. Encoding differs too: STM often uses acoustic coding, while LTM uses semantic coding.
Peterson and Peterson (1959) showed that STM duration without rehearsal is around 18 to 30 seconds. Miller (1956) found that STM capacity is about 7 plus or minus 2 chunks.
8. Forgetting and Reconstructive Memory | 遗忘与重构性记忆
Forgetting can be explained by decay, interference, and retrieval failure. Proactive interference occurs when old learning disrupts new learning; retroactive interference occurs when new learning disrupts old learning.
Bartlett (1932) demonstrated that memory is reconstructive. His ‘War of the Ghosts’ study showed participants changed unfamiliar details to fit their own cultural schemas. This means memory is not a perfect recording but an active reconstruction.
Loftus and Palmer (1974) provided evidence that leading questions can distort eyewitness memory. Participants who heard the word ‘smashed’ estimated higher speeds than those who heard ‘contacted’.
9. Social Influence: Conformity and Obedience | 社会影响：从众与服从
Conformity is a change in belief or behaviour due to real or imagined group pressure. Asch (1951) found that around one third of participants conformed to an obviously wrong group answer on a line judgement task.
Normative influence occurs when we conform to fit in and avoid rejection. Informational influence occurs when we conform because we believe others are correct. Group size, unanimity, and task difficulty affect conformity levels.
Obedience involves following a direct order from an authority figure. Milgram (1963) found that 65 percent of participants gave what they believed were dangerous electric shocks up to 450 volts. This shows ordinary people may obey authority even when it conflicts with personal conscience.
10. Prosocial Behaviour and the Bystander Effect | 亲社会行为与旁观者效应
Prosocial behaviour is any act intended to help others. The bystander effect refers to the finding that individuals are less likely to help when other people are present. Latane and Darley (1968) explained this through diffusion of responsibility.
In their smoke-filled room study, participants alone were more likely to report smoke than participants in groups. The presence of passive bystanders can make people interpret a situation as non-emergency.
Factors that increase helping include feeling personally responsible, having relevant skills, being in a good mood, and sharing group identity with the victim. The IGCSE exam often asks you to apply these factors to a scenario.
Attachment is a strong emotional bond between an infant and a primary caregiver. Bowlby viewed attachment as adaptive and proposed a critical period during which attachment needs to form.
依恋是婴儿与主要照料者之间强烈的情感纽带。鲍尔比认为依恋具有适应性，并提出了依恋形成的关键期。
Ainsworth’s Strange Situation identified three main attachment types: secure, insecure-avoidant, and insecure-resistant. Securely attached infants use the caregiver as a safe base; avoidant infants show little distress on separation; resistant infants are clingy and hard to comfort.
Harlow’s monkey studies showed that infant rhesus monkeys preferred a soft cloth surrogate mother over a wire mother that provided food. This challenges the idea that attachment is only about feeding and highlights the role of contact comfort.
When evaluating studies, you should comment on validity, reliability, generalisability, ethics, and practical applications. For example, Milgram’s study had high internal validity because it was a controlled lab setting, but it has been criticised for lacking ecological realism and raising ethical issues.
In the exam, avoid vague phrases such as ‘the study was reliable’. Instead, explain how a feature of the study affects reliability or validity. Use the PEE structure: point, evidence, explanation.
📚 IGCSE Cambridge Psychology: Essay Writing Frameworks and Model Answers | IGCSE剑桥心理学：论文写作框架与范文
IGCSE Cambridge Psychology papers reward clear structure, accurate use of psychological terms, and the ability to link evidence to a question. This article explains how to build high-scoring written answers, from short describe questions to extended evaluate essays. It also gives two complete model answers based on widely used core studies.
1. Understanding the IGCSE Psychology Exam Structure | 了解IGCSE心理学考试结构
In Cambridge IGCSE Psychology, written questions usually fall into three types: describe, evaluate, and apply. Describe questions ask you to outline a study or theory. Evaluate questions ask you to judge strengths and weaknesses. Apply questions ask you to use psychological ideas in a new scenario.
Most extended responses are marked for both knowledge and understanding, so you must show that you know the facts and that you can use them to answer the exact question. A generic essay about a study will not gain full marks if it does not link back to the wording of the question.
‘Describe’ means give a detailed account. You should include aims, procedure, findings, and conclusions where relevant. Do not spend time criticising the study unless the question also says ‘evaluate’.
‘Evaluate’ means make a judgement. You should discuss strengths and weaknesses, such as validity, reliability, ethics, sample size, and practical applications. You must support each evaluative point with evidence from the study or the method.
‘Apply’ means use a theory or study to explain a new situation. Start by identifying the relevant psychological concept, then show how the details of the scenario fit that concept.
Key point: always circle the command word before writing.
关键点：写作前先圈出指令词。
3. The PEE and PEEEL Paragraph Framework | PEE与PEEEL段落框架
Use PEE for describe and apply paragraphs: Point, Evidence, Explanation. For evaluate paragraphs, extend this to PEEEL: Point, Evidence, Explanation, Evaluation, Link.
A PEE paragraph starts with a clear point that answers the question. The evidence is a specific fact, such as a percentage, condition, or result from a core study. The explanation shows why the evidence matters.
An evaluation paragraph should not just list ‘one strength is… one weakness is…’ Instead, each evaluation point should be developed: state the issue, give a specific example, and say how it affects the conclusion.
4. Structuring a 6-Mark Describe Question | 6分描述题结构
For a 6-mark describe question, write one short introductory sentence to show which study or theory you are using. Then give two or three focused paragraphs using the PEE structure.
Include only details that are relevant. If the question asks you to describe the procedure, do not spend half the answer writing about findings. Marks are matched to the specific command and focus of the question.
只写相关的细节。如果题目要求描述程序，就不要花一半篇幅写结果。分数与题目的具体指令和重点相匹配。
For example, when describing Milgram (1963), you could write: ‘The participants were 40 American men aged 20 to 50 who volunteered for a study on memory and learning.’ This is specific procedural detail that earns knowledge marks.
5. Structuring a 10-Mark Evaluate Question | 10分评价题结构
A 10-mark evaluate question often asks you to discuss the strengths and weaknesses of a study or a research method. Begin with a clear statement of the study and its aim, then write two evaluation paragraphs in favour and two against.
Each evaluation paragraph should follow PEEEL. For example, point: ‘One strength of the study is that it used a standardised procedure.’ Evidence: ‘All participants watched the same video clips and answered the same questions.’ Explanation: ‘This increases reliability because the study could be repeated to check for consistent results.’
Always end with a brief conclusion that gives an overall judgement. A strong conclusion does not simply repeat the points; it weighs the evidence, such as saying the study is useful for real-life applications despite having limited ecological validity.
Cambridge IGCSE Psychology uses a set of core studies to test knowledge of approaches, research methods, and issues. You should know the aim, method, sample, procedure, findings, and conclusion of each study you have studied.
When using a study as evidence, avoid telling the whole story. Choose only the details that support the point you are making. For example, if the question is about ecological validity, mention the artificial laboratory setting of Loftus and Palmer (1974), not every speed estimate given by participants.
You should also name the researcher and year accurately where possible. This shows precise knowledge and helps examiners see that you are using the correct core study.
你还应尽可能准确写出研究者和年份。这能展示精确的知识，并帮助考官看出你使用了正确的核心研究。
7. Writing About Research Methods | 研究方法的写作
Questions about research methods often ask you to identify a method, outline one strength and one weakness, or suggest an improvement. Use the same PEEEL structure, but apply it to the method rather than to a specific study.
For example, if a scenario uses a laboratory experiment, a strength is high control over variables. A weakness is low ecological validity because the task may not reflect everyday behaviour. Always link these points to the scenario if one is provided.
When suggesting improvements, be specific: increase the sample size, use a control group, use a double-blind procedure, or standardise the instructions. Do not write vague statements like ‘make it more valid’.
Scenario questions ask you to explain a given situation using psychological knowledge. Start by naming the relevant theory or study, then identify the parts of the scenario that match it.
情景题要求你运用心理学知识解释给定情境。先说出相关理论或研究，再指出情境中与之相符的部分。
For example, if a scenario describes a person who obeys an authority figure wearing a uniform, you could apply Milgram’s agency theory or the finding that uniform increases obedience. Explain that the person may enter an agentic state, feeling responsibility is passed to the authority figure.
Always support your application with one or two specific details from the scenario. This shows the examiner that you can transfer knowledge, not just recall it.
始终用情景中的一两个具体细节支持你的应用。这向考官表明你能够迁移知识，而不仅仅是回忆知识。
9. Model Answer: Memory Study | 范文：记忆研究
Question: Describe the procedure and findings of Loftus and Palmer (1974) and evaluate one weakness of this study.
题目：描述洛夫特斯和帕尔默（1974）的程序与结果，并评价该研究的一个缺点。
Loftus and Palmer (1974) investigated whether leading questions can distort memory of an event. In Experiment 1, 45 student participants watched film clips of car accidents and then answered questions about the speed of the cars. Five groups were asked, ‘About how fast were the cars going when they hit/smashed/collided/bumped/contacted each other?’ The key difference was the verb used.
The mean speed estimate for ‘smashed’ was 40.8 mph, while for ‘contacted’ it was 31.8 mph. This suggests that the wording of a question can alter a person’s memory of an event. In Experiment 2, participants who heard the word ‘smashed’ were more likely to later report seeing broken glass, even though none was present.
One weakness is low ecological validity. The participants watched film clips in a laboratory rather than experiencing a real accident, so their emotional response would be different. This means the findings may not fully explain how witnesses remember real traffic collisions. However, the study still has important implications for police questioning because it shows that leading questions can create memory distortion.
10. Model Answer: Social Influence Study | 范文：社会影响研究
Question: Evaluate Milgram (1963) as a study of obedience. Include both strengths and weaknesses in your answer.
题目：评价米尔格拉姆（1963）作为服从研究的优点与缺点。
Milgram (1963) investigated whether ordinary people would obey an authority figure who instructed them to give electric shocks to a learner. The study found that 65% of participants continued to the maximum 450-volt shock. This suggests that obedience to authority can override moral judgement.
One strength is high internal validity. Milgram used a standardised procedure: the same word-pair task, the same scripted responses from the experimenter, and the same fake shock generator. This control makes it easier to conclude that the independent variable, the authority figure’s orders, caused the obedience observed.
Another strength is that the findings have practical applications. Understanding obedience helps explain historical events such as the Holocaust, and it also informs training in organisations where people must question unethical orders. This makes the study useful beyond the laboratory.
However, one weakness is low ecological validity. Shocking a stranger in a university laboratory is not an everyday situation, so the findings may not represent how people behave in normal life. Also, the study raises ethical issues: participants were deceived and exposed to severe stress, although they were debriefed afterwards.
Overall, Milgram’s study is a powerful demonstration of situational influence on obedience. Its strengths lie in the controlled method and useful applications, but the ethical and ecological limitations mean the results should be interpreted cautiously.
11. Common Pitfalls and Mark Scheme Tips | 常见失分点与评分标准提示
Many students lose marks because they write everything they know about a study without answering the question. Always ask yourself: ‘Does this sentence help answer the command word and focus?’ If not, cut it or link it more clearly.
Another common mistake is to confuse reliability and validity. Reliability means consistency: would the study produce similar results if repeated? Validity means accuracy: does the study measure or test what it claims to test? Use these terms precisely.
Finally, do not leave an evaluate question without a conclusion. Examiners expect a judgement, not a list. Use phrases like ‘Overall, the study is more useful because…’ or ‘Despite the ethical issues, the findings suggest…’.
I can identify describe, evaluate, and apply command words. / 我能识别describe、evaluate和apply指令词。
I know the aim, method, sample, procedure, findings, and conclusion for each core study. / 我掌握每个核心研究的目的、方法、样本、程序、结果和结论。
I can write PEE and PEEEL paragraphs under timed conditions. / 我能在限时条件下写出PEE和PEEEL段落。
I can use the terms reliability, validity, ethics, and ecological validity accurately. / 我能准确使用信度、效度、伦理和生态效度等术语。
I can apply psychological studies and theories to unfamiliar scenarios. / 我能将心理学研究和理论应用于不熟悉的情景。
Practice planning answers before writing full essays. Spend two minutes underlining the command word, listing relevant evidence, and deciding on the paragraph order. This investment in planning usually produces a clearer and higher-scoring response.
📚 IGCSE Cambridge Psychology: A Parent’s Guide to Supporting Your Teen | IGCSE 剑桥心理学：家长辅导指南
As a parent, you do not need a psychology degree to make a real difference. The Cambridge IGCSE Psychology course rewards students who can describe core studies, apply research methods, and evaluate evidence clearly. Your role is to help with planning, active recall, and calm encouragement rather than to teach the entire syllabus.
Cambridge IGCSE Psychology is built around six main topic areas plus research methods. Students study memory and forgetting, sleep and dreams, prosocial behaviour, visual perception, motivation and emotion, and language and communication. Research methods are not a separate add-on; they run through every topic.
The syllabus focuses on psychological studies, key terminology, and simple evaluation. Students need to describe what a study found, outline strengths and weaknesses, and suggest how findings apply to everyday life.
Parents often assume the subject is mainly about mental illness or therapy. In fact, IGCSE Psychology is more like an introduction to scientific thinking about behaviour and the mind.
Cambridge IGCSE Psychology (0268) is assessed through two written papers. Paper 1 focuses on short-answer and structured questions, while Paper 2 requires longer, essay-style responses. Both papers test knowledge, application, and evaluation.
Paper 1 lasts 1 hour 30 minutes and is worth 50% of the total grade. Paper 2 also lasts 1 hour 30 minutes and is worth the remaining 50%. Both papers include questions on research methods.
Understanding the assessment objectives is useful for parents. AO1 tests knowledge and understanding, AO2 tests application, and AO3 tests analysis and evaluation. Encourage your child to move beyond memorising facts.
Research methods questions appear in every paper, so they deserve regular attention. Students must understand experiments, interviews, questionnaires, observations, and case studies.
研究方法题目出现在每份试卷中，因此值得持续关注。学生必须理解实验、访谈、问卷、观察和案例研究。
Key concepts include independent and dependent variables, extraneous variables, sampling methods, and ethical guidelines such as informed consent and confidentiality.
A simple way to support your child is to ask them to identify the IV and DV in any study they describe. For example, in a memory experiment on noise, the IV might be noise level, and the DV might be number of words recalled.
Ethics is a favourite exam topic. Students should be able to explain why deception, informed consent, and right to withdraw matter, and how psychologists can address these issues.
伦理是考试中常见话题。学生应能解释欺骗、知情同意和退出权为何重要，以及心理学家如何处理这些问题。
4. Key Topic 1: Memory and Forgetting | 核心主题1：记忆与遗忘
Memory and forgetting covers the multi-store model, working memory, and explanations of forgetting such as interference and context. Students should know strengths and weaknesses of each model.
记忆与遗忘涵盖多存储模型、工作记忆，以及干扰和情境等遗忘解释。学生应了解每个模型的优点与不足。
Classic studies include Murdock’s serial position effect, Baddeley’s coding experiments, and Loftus on eyewitness testimony. Your child should be able to link each study to a clear aim, method, result, and conclusion.
When revising, encourage the use of the APRC structure: Aim, Procedure, Results, Conclusion. This structure works for almost every study-based question.
复习时，请鼓励使用 APRC 结构：目的、程序、结果、结论。这个结构几乎适用于所有基于研究的题目。
A common mistake is describing a study without linking the conclusion back to the question. Parents can prompt: ‘What does this tell us about how memory works?’
This topic covers sleep cycles, functions of sleep, and explanations of dreaming including Freud’s theory and activation-synthesis. Students should compare biological and psychological views.
Revision should include key stages of sleep such as REM and NREM, and the role of the brain during dreaming. The activation-synthesis model suggests dreams result from the brain trying to make sense of random neural activity.
Students often find it easier to remember studies if they use a timeline or diagram for sleep stages. Parents can help by asking them to sketch the cycle from light sleep to deep sleep and REM.
Starting IGCSE Psychology in the summer may feel early, but it is one of the most effective ways to build confidence before the coursework and exams begin. This bridging guide introduces the core topics, research methods, and study habits you need to succeed.
1. Why Begin Psychology in the Summer? | 为什么在暑期开始心理学
Starting early reduces cognitive overload. IGCSE Psychology includes many new terms, studies, and evaluation skills, so spacing your learning over the summer helps transfer information into long-term memory.
You also have time to reflect. Psychology rewards students who can apply concepts to everyday life, such as noticing conformity in a group or observing learning in a younger sibling.
2. Cambridge IGCSE Psychology Syllabus at a Glance | 剑桥 IGCSE 心理学大纲一览
The Cambridge IGCSE Psychology syllabus (0470) combines scientific research with real-world behaviour. You will study approaches such as biological, cognitive, social, and developmental psychology, alongside research methods, data handling, and ethics.
Exams test more than facts. They ask you to describe studies, evaluate findings, and apply knowledge to novel scenarios, so regular practice with past-paper style questions is essential.
Experiments are central to psychology. You need to distinguish the independent variable (IV), the factor manipulated by the researcher, from the dependent variable (DV), the outcome measured.
Ethical guidelines protect participants. The key principles include informed consent, confidentiality, the right to withdraw, and protection from harm.
伦理准则保护被试。主要原则包括知情同意、保密、退出权利和免受伤害。
IV = variable you change | 自变量 = 你改变的变量
DV = variable you measure | 因变量 = 你测量的变量
Sample = the group studied | 样本 = 被研究的群体
4. Biological Foundations: Brain and Behaviour | 生物学基础：大脑与行为
Biological psychology links the brain to behaviour. You will learn how areas such as the prefrontal cortex support decision-making, while the amygdala is involved in emotional responses including fear.
Neurotransmitters such as serotonin and dopamine influence mood and motivation. Understanding these chemical messengers helps explain conditions like depression or addiction.
血清素和多巴胺等神经递质会影响情绪和动机。理解这些化学信使有助于解释抑郁或成瘾等状况。
5. Cognitive Psychology: Memory and Attention | 认知心理学：记忆与注意
The multi-store model describes memory as sensory memory, short-term memory, and long-term memory. Short-term memory holds about 7 ± 2 items for a limited time unless rehearsal occurs.
Forgetting can happen because information fades, is displaced, or lacks retrieval cues. Active revision techniques such as retrieval practice reduce forgetting more effectively than re-reading.
6. Social Influence: Conformity and Obedience | 社会影响：从众与服从
Conformity means changing behaviour to match a group. Asch (1951) found that many participants gave an incorrect answer to avoid standing out, demonstrating normative social influence.
Obedience involves following direct commands. Milgram’s famous study showed that ordinary people were willing to deliver what they believed were severe electric shocks when instructed by an authority figure.
7. Developmental Psychology: Attachment and Learning | 发展心理学：依恋与学习
Attachment is the emotional bond between a child and caregiver. Ainsworth’s Strange Situation identified secure, insecure-avoidant, and insecure-resistant attachment styles.
Learning theories include classical conditioning, operant conditioning, and social learning theory. Bandura showed that children can learn aggression by observing adult models.
Abnormal psychology examines definitions of mental health and the symptoms, causes, and treatments of disorders such as depression and anxiety. Diagnosis must consider cultural and social norms.
Stress is a common focus. The transactional model explains stress as an interaction between perceived demands and perceived coping resources, which is useful for evaluating everyday pressure.
Previewing classic studies gives you a framework for later lessons. Focus on the aim, procedure, findings, conclusion, and ethical evaluation of each study.
预习经典研究能为后续课程提供框架。重点关注每项研究的目的、程序、结果、结论和伦理评价。
Study | 研究
Focus | 重点
Published by TutorHao | IGCSE Psychology Revision Series | aleveler.com
Many candidates are surprised to learn that Cambridge IGCSE Psychology does not include a separate speaking or listening paper. The final mark comes from written papers, but speaking and listening still play a powerful role in revision because they force you to retrieve knowledge, organise ideas and use psychological terms accurately. This guide turns oral and aural practice into a focused preparation strategy for the written examination.
Throughout this article, “speaking and listening preparation” means using spoken explanation, discussion, recording and active listening to strengthen exactly the skills the written papers reward: accurate definitions, clear description of studies, and balanced evaluation of strengths and weaknesses. It is not a replacement for written practice, but a complement that makes written practice more effective.
Cambridge IGCSE Psychology is assessed through written papers, so you will not be asked to perform a live oral interview or complete a listening comprehension test. Understanding this removes the fear of memorising spoken scripts and allows you to use speaking as a flexible revision tool.
The written papers contain a mix of multiple-choice, short-answer and longer response questions. These questions often begin with command words such as “identify”, “describe”, “explain”, “discuss” and “evaluate”. To answer them well, you need fast recall of key terms and core studies, and the ability to write clear, structured sentences under time pressure.
Speaking and listening skills support each of these demands. When you explain a study aloud, you practise the same structure you will write in the exam. When you listen to a focused podcast, you train your brain to pick out relevant information quickly, which helps you read and interpret exam questions more efficiently.
Psychology itself tells us that memory improves with deep processing. Reading notes is often passive and shallow. Speaking about a topic forces you to transform the material into your own words, retrieve it from long-term memory and notice gaps in your understanding.
This is closely related to the testing effect: when you practise retrieving information without looking at your notes, you strengthen the memory trace more than if you simply reread. Speaking aloud is a form of retrieval practice, especially when you explain a study without prompts.
Listening to another person explain a topic helps you compare their understanding with yours. It also exposes you to different ways of using psychological language, which can make your own written answers more precise and flexible.
In short, speaking and listening build automaticity with terminology, improve recall of core studies, and train the evaluation skills that higher-mark questions require.
简而言之，口语和听力能够建立术语的自动化使用，改善对核心研究的回忆，并训练高分题目所需的评价技能。
3. Active Listening for Psychological Studies | 心理学研究的主动听力
Active listening means listening for structure, not just words. When you listen to a psychology podcast, a teacher’s recording or a revision video, listen for the standard study structure: aim, method, results, conclusion, strengths and weaknesses.
Make short notes while listening. Use symbols and abbreviations to save time: IV → DV, ↑ aggression, ↓ memory accuracy, eco validity, gen. These visual notes become powerful retrieval cues when you revise later.
After listening to a short section, pause the audio and say the main idea aloud in one or two sentences. This tests whether you genuinely understood the material or simply recognised familiar words. If you cannot summarise it, replay that section and listen for the missing detail.
📚 Cambridge IGCSE Psychology: Teaching Strategies and Lesson Plan Sharing | IGCSE剑桥心理学：教师教学建议与教案分享
This article offers practical teaching strategies and a ready-to-adapt lesson plan for Cambridge IGCSE Psychology (0471). It is designed for subject teachers who want to build conceptual understanding, strengthen research-methods skills, and improve exam performance through bilingual instruction.
1. Understand the Assessment Structure and Syllabus Priorities | 理解考试结构与大纲重点
Cambridge IGCSE Psychology is assessed through papers that reward three assessment objectives: AO1 knowledge and understanding of concepts and studies, AO2 application of psychology to unfamiliar scenarios, and AO3 analysis and evaluation of theory, methods, and evidence. Teachers often make the mistake of over-explaining content while under-training students to evaluate.
Begin each unit by identifying the command words most likely to appear, such as ‘describe’, ‘explain’, ‘suggest’, and ‘evaluate’. Display these on a poster and colour-code them: green for AO1, blue for AO2, orange for AO3. This makes the demands visible to students during every lesson.
📚 IGCSE Cambridge Psychology: Matching UK University Entry Requirements | IGCSE 剑桥心理学：英国大学申请要求对照
This guide maps Cambridge IGCSE Psychology against UK university entry expectations. It explains whether the subject is required, which grades matter, how it links to A-level and IB study, and how international applicants can use it strategically. Always confirm details on the university course page because entry requirements change.
1. IGCSE Cambridge Psychology at a Glance | IGCSE 剑桥心理学课程概览
The Cambridge IGCSE Psychology syllabus (0266) introduces students to core psychological theories, research methods, and real-life applications. It covers areas such as memory, perception, sleep and dreaming, language, emotion, and social behaviour. Assessment typically includes written papers that test knowledge, application, and evaluation, with no coursework component.
Students learn to describe classic and contemporary studies, discuss strengths and limitations, and use psychological terminology accurately. The syllabus is designed to build scientific literacy and critical thinking at an introductory level, rather than to train students as practitioners. This academic focus makes it a useful bridge subject, but not a replacement for core sciences.
2. What UK Universities Actually Require for Psychology | 英国大学心理学专业实际要求
For a psychology degree in the UK, universities rarely ask for IGCSE Psychology by name. Their main focus is on A-level or IB predicted grades, usually in scientific or analytical subjects. Most psychology courses require strong performance in biology, chemistry, physics, mathematics, or psychology at A-level, because degree-level psychology includes statistics, neuroscience, and research design.
GCSE and IGCSE results are used as a baseline check, especially in English, mathematics, and science. Admissions tutors want to see that applicants can handle the written and numerical demands of a psychology degree. IGCSE Psychology can be considered as part of this wider academic profile, but it is not the first subject tutors look for.
3. GCSE/IGCSE Entry Requirements: Grades That Matter | GCSE/IGCSE 入学要求：哪些成绩重要
Typical entry requirements mention GCSE English Language and Mathematics at grade 4/C or above, but selective universities often expect grade 5/B or 6 in these subjects. For psychology, a good IGCSE science grade is also valuable because the degree involves data analysis, biological processes, and experimental methods. IGCSE Psychology itself is not usually a required GCSE subject, but a grade 7/A or above can demonstrate genuine interest.
It is important to distinguish between minimum requirements and competitive reality. A course may state a minimum of grade 4/C in English and mathematics, yet most successful applicants present much higher grades across their IGCSE subjects. Strong grades in core subjects protect your application better than an extra psychology grade alongside weak mathematics or science results.
4. Is IGCSE Psychology a Required Subject? | IGCSE 心理学是必需科目吗？
No UK psychology course currently lists IGCSE Psychology as a compulsory subject. This is because GCSE-level psychology is seen as an introductory option, not a foundation science. Universities prefer to see core GCSEs such as English, mathematics, and combined or triple science, because these subjects prepare students for the statistical and biological content of a psychology degree.
IGCSE Psychology can still add value as an additional subject, especially if it does not displace these core subjects. If your school offers a limited number of IGCSE options, taking psychology instead of a second or third science may weaken your application. Keep psychology as an enrichment subject rather than a substitute for biology, chemistry, physics, or mathematics.
5. Russell Group Requirements at a Glance | 罗素集团大学要求对照
Requirements vary, so students should check each university’s course page. The table below gives a general comparison based on typical published entry standards for psychology-related degrees. It is not a substitute for official entry data.
English and mathematics at 5/B or 6/B; science often at 5-6
Useful as evidence of interest, not required
Oxford and Cambridge
Strong IGCSE/GCSE profile across subjects; no fixed cut-off
Optional extra, but not decisive
Non-Russell Group universities
English and mathematics at 4/C; sciences recommended
Can add academic interest
The table shows that IGCSE Psychology is never the deciding factor, but it can support a broader academic profile. Admissions tutors are more interested in whether you have the core grades to succeed in a research-based degree.
6. How IGCSE Psychology Strengthens Your Application | IGCSE 心理学如何提升申请竞争力
Studying IGCSE Psychology develops skills that university admissions tutors value: precise use of terminology, evaluation of evidence, understanding of ethical issues, and the ability to write balanced arguments. These skills appear in personal statements and interviews. A strong IGCSE Psychology grade can signal readiness for A-level psychology, essay-based subjects, and research-led degrees.
When writing a personal statement, avoid simply saying that you enjoy psychology. Instead, refer to a specific study or topic you explored in IGCSE, such as memory models or ethical guidelines in social influence research. This demonstrates depth and academic curiosity rather than vague enthusiasm.
7. Bridging to A-Level and IB Psychology | 与 A-Level / IB 心理学的衔接
IGCSE Psychology overlaps with the first units of A-level and IB psychology: research methods, memory models, social influence, and biological foundations. Students who take IGCSE Psychology often find the A-level research methods component easier because they have already learned terms such as hypothesis, variable, sample, and ethical guideline.
However, A-level requires deeper evaluation and statistical understanding. IGCSE Psychology alone does not guarantee high A-level grades, because the step up involves more essay writing, inferential statistics, and critical comparison of theories. Treat IGCSE as a foundation, not as proof that A-level psychology will be easy.
8. Applying to Non-Psychology Degrees | 申请非心理学专业时的作用
IGCSE Psychology is not only useful for psychology applicants. Medical, law, education, business, and sociology courses value an understanding of human behaviour, research literacy, and communication. For medicine, it can complement biology and chemistry, especially for interviews that explore empathy, ethics, and patient behaviour.
For law, IGCSE Psychology supports analytical reading and argument formation, because students learn to weigh evidence and consider alternative explanations. For education and business, it offers insight into learning, motivation, and group behaviour. This versatility makes it a useful fourth or fifth IGCSE choice for students who have strong core subjects.
9. Choosing IGCSE Subjects: Psychology in the Mix | IGCSE 选课策略：心理学如何搭配
If you are aiming for a psychology degree, prioritise IGCSE English, mathematics, and at least two sciences before adding psychology. A balanced set could include English, mathematics, biology, chemistry, and psychology as a fifth or sixth option. Do not drop core sciences to take psychology.
If your school offers only a limited number of choices, check the entry requirements of your target universities first. Some universities list preferred A-level subjects but do not require psychology at GCSE. In such cases, keeping biology and mathematics may be more important than taking IGCSE Psychology.
10. International Applicants and English Language Evidence | 国际申请者与英语语言证明
For international students, IGCSE English qualifications can sometimes be used as evidence of English language proficiency. Many UK universities accept Cambridge IGCSE English as a First Language or English as a Second Language at a specified grade, usually B/6 or above, in place of IELTS or TOEFL. This can be an advantage if you are planning to apply from an international school.
Competitions such as the International Psychology Olympiad, Brain Bee, and psychology essay prizes reward students who can apply IGCSE Cambridge Psychology beyond the textbook. This guide shows you how to build a competition-ready revision system using the Cambridge IGCSE Psychology 0470 syllabus as your foundation.
Start by downloading the 0470 syllabus and highlight every key term, study and research method. Competitions often test the same core topics: biological, cognitive, social, developmental psychology and individual differences. A syllabus-based checklist prevents you from wasting time on material that is not assessed.
Map each topic to possible competition tasks, such as multiple-choice, short answer, essay and experimental design. For IGCSE, Paper 1 and Paper 2 require recall, application and evaluation; the same skills appear in psychology olympiads.
把每个主题对应到可能的竞赛题型，例如选择题、简答题、论文和实验设计。在 IGCSE 中，Paper 1 和 Paper 2 都要求回忆、应用和评价；同样的技能也出现在心理学奥林匹克中。
Use a topic checklist like this:
使用类似下面的主题清单：
Biological: brain, neurons, sleep, drug effects | 生物：大脑、神经元、睡眠、药物作用
Cognitive: memory, attention, perception, language | 认知：记忆、注意、知觉、语言
2. Set a Competition Target and Timeline | 明确竞赛目标与时间轴
Choose one or two competitions with clear dates, such as the International Psychology Olympiad qualification rounds, Brain Bee local heats, or essay competitions like the John Locke Psychology Prize. Working backwards from the deadline makes your IGCSE revision more purposeful.
选择一到两个有明确日期的竞赛，例如国际心理学奥林匹克资格轮、Brain Bee 地方赛，或 John Locke 心理学论文奖等论文竞赛。从截止日期倒推，会让你的 IGCSE 复习更有方向。
A 12-week plan works well: weeks 1-4 cover research methods and biological topics; weeks 5-8 cover cognitive and social psychology; weeks 9-10 cover developmental and individual differences; weeks 11-12 are for timed past papers and competition mocks.
Set a weekly goal such as ‘master five studies and ten key terms’. Track your progress in a simple table so you know which topics need extra attention.
Research methods carry high weight in both IGCSE and psychology competitions. You must be able to identify independent variables, dependent variables, extraneous variables, control conditions, sampling methods, and experimental designs such as independent groups, repeated measures and matched pairs.
Ethical issues are a favourite competition question. Learn BPS guidelines: informed consent, right to withdraw, confidentiality, protection from harm, deception and debriefing. For each study, ask whether the ethical cost was justified by the scientific gain.
Also practise simple descriptive statistics: mean, median, mode, range and percentage change. Being able to read a bar chart, scatter graph or table quickly will help you answer data-based questions accurately.
Competitions expect you to explain how the brain, neurotransmitters and hormones influence behaviour. Focus on the structure and function of neurons, synaptic transmission, and the roles of serotonin, dopamine and adrenaline. Link each chemical to a specific behaviour, such as mood, motivation or stress.
竞赛要求你解释大脑、神经递质和激素如何影响行为。重点掌握神经元
Published by TutorHao | IGCSE Psychology Revision Series | aleveler.com
📚 IGCSE Cambridge Psychology: Recommended Learning Resources and How to Use Them | IGCSE Cambridge 心理学：学习资源推荐与使用指南
Preparing for Cambridge IGCSE Psychology requires more than memorising key studies and definitions. You need a clear map of the syllabus, the right mix of learning resources, and a study routine that builds recall, application, and evaluation skills. This guide recommends the most useful resources and shows you how to use each one effectively before your exam.
The official syllabus is the most important resource because exam questions are written directly from it. Download it from the Cambridge International website and read the content overview, assessment objectives, and topic list before you buy any other material.
Use the syllabus to mark your confidence level for each topic. For example, label each bullet point as secure, partial, or weak. This helps you spend time where it matters most instead of rereading familiar chapters.
A Cambridge-endorsed coursebook follows the syllabus structure and includes definitions, key studies, and exam-style questions. Choose one main textbook and use it consistently rather than jumping between several books.
During reading, use the SQ3R method: survey, question, read, recite, and review. This approach is especially effective for psychological theories because it forces you to connect new information to exam-style questions.
Keep a glossary of technical terms such as operationalisation, independent variable, and ecological validity. The textbook glossary is a good starting point, but writing your own definitions improves long-term memory.
3. Revision Guides for Condensed Review | 复习指南与浓缩复习
Revision guides are designed for rapid review and often organise content by exam command words. Use them after you have covered a topic in detail, not as a substitute for the textbook.
A good revision guide includes summary tables, common misconceptions, and quick-check questions. Turn each summary point into a question and test yourself without looking at the page.
好的复习指南包含总结表、常见误区和小测题。把每个总结要点变成问题，在不看页面内容的情况下自测。
Limit your revision guide use to short sessions, such as 20 minutes per topic, and combine it with past-paper practice. This prevents the false confidence that comes from recognising information.
Past papers are the closest you can get to the real exam. Start with untimed questions while you are still learning content, then move to timed papers as the exam approaches.
历年真题是你最接近真实考试的资源。在学习内容的阶段先做不计时题目，临近考试时再转向限时整卷练习。
After completing a paper, compare your answers with the mark scheme line by line. Award yourself marks only for points that the scheme explicitly accepts, and write down any missing terminology.
完成试卷后，逐行对照评分标准检查答案。只给自己在评分标准明确
Published by TutorHao | IGCSE Psychology Revision Series | aleveler.com