📚 Core IGCSE Psychology Concepts: A Year 10 Revision Guide | 核心知识点梳理：Year 10 CIE 心理学
Welcome to your comprehensive Year 10 revision guide for CIE IGCSE Psychology. This resource distils the essential topics you will encounter, from research methods and memory to social influence and altruism. Each section clarifies key theories, classic studies and important terminology, helping you build a solid foundation for exam success.
欢迎阅读这份为 Year 10 CIE IGCSE 心理学量身打造的全面复习指南。我们梳理了研究方法、记忆、社会影响、利他行为等核心主题，每部分都清晰解释了关键理论、经典研究和重要术语，助你扎实掌握基础，从容应对考试。
1. What Is Psychology and How Do We Study It? | 心理学是什么？我们如何研究它？
Psychology is the scientific study of mind and behaviour. Unlike everyday assumptions, psychologists rely on empirical evidence gathered through systematic research methods. These methods include experiments, observations, surveys, interviews and case studies. Each method has its own strengths and limitations, and the choice depends on the research question. For example, a laboratory experiment allows high control over variables, whereas an observation might capture more natural behaviour.
心理学是对心智与行为的科学研究。与日常猜测不同，心理学家依赖通过系统研究方法获得的实证证据。这些方法包括实验、观察、调查、访谈与个案研究。每种方法各有优缺点，选择哪类方法取决于研究问题。例如，实验室实验能高度控制变量，而观察则能捕捉更自然的行为。
Key quantitative techniques include calculating measures of central tendency (mean, median, mode) and measures of dispersion (range). Psychologists also use scatterplots to visualise correlations, always remembering that correlation does not imply causation. Understanding these fundamentals equips you to evaluate any psychological investigation critically.
关键的量化技术包括计算集中趋势（平均数、中位数、众数）和离散程度（全距）。心理学家也用散点图呈现相关性，始终谨记相关不意味着因果关系。理解这些基础将让你有能力批判地评估每项心理学研究。
A crucial distinction is between laboratory, field and natural experiments. Laboratory experiments provide high internal validity but may lack ecological validity. Field experiments improve naturalness but reduce control. Natural experiments observe variables that change by themselves (e.g., before and after a new law) and cannot show cause and effect as strongly. This awareness of validity types (internal, external, ecological) underpins good psychological reasoning.
实验可分为实验室实验、现场实验和自然实验。实验室实验内部效度高，但可能缺乏生态效度；现场实验更自然，但控制力减弱；自然实验观察的是自身变化的变量（如新法律实施前后），无法有力证明因果关系。熟悉内部效度、外部效度和生态效度等不同类型，是出色心理学推理的基石。
2. Variables, Hypotheses and Experimental Design | 变量、假设与实验设计
Every experiment involves an independent variable (IV) – the factor the researcher manipulates – and a dependent variable (DV) – the factor that is measured. A well-written hypothesis states clearly how the IV will affect the DV. For instance: ‘Participants who study with background music will recall fewer words than those who study in silence.’ The null hypothesis states there will be no difference, and statistical analysis tests which hypothesis is supported.
每项实验都涉及自变量（IV，研究者操纵的因素）与因变量（DV，被测量的因素）。精心撰写的假设会清晰陈述自变量将如何影响因变量，例如：“学习时听背景音乐的参与者回忆的单词数将少于在安静环境中学习的参与者。”虚无假设则声明无差异，数据分析会判断哪一假设得到支持。
Three main experimental designs exist: independent groups (different participants in each condition), repeated measures (same participants in all conditions) and matched pairs (different but similar participants in each condition). Independent groups avoid order effects but need more participants; repeated measures require fewer participants but risk practice or fatigue effects; matched pairs reduce participant variables but are time-consuming to set up. Understanding these trade-offs helps you criticise or design studies effectively.
三种主要实验设计为：独立组设计（不同被试分处不同条件）、重复测量设计（同一被试经历所有条件）和配对组设计（不同但相似被试分处各条件）。独立组避免了顺序效应但需要更多被试；重复测量被试数量少却存在练习或疲劳效应的风险；配对组可减少被试变量，但配对过程耗时。掌握这些权衡能帮助你有效评价或设计研究。
Psychologists also need to manage confounding and extraneous variables. For example, standardised instructions and counterbalancing in repeated measures help control for unwanted influences. Random allocation to conditions is the gold standard for distributing participant variables evenly. Spotting potential confounds in a study is a key exam skill.
心理学家还需控制混淆变量与无关变量。例如，标准化指导语与重复测量中的平衡设计有助于控制意外影响。将被试随机分配到不同条件则是均匀分布被试变量的金标准。在考试中能识别出潜在混淆因素是一项关键技能。
3. Ethical Considerations in Psychological Research | 心理学研究中的伦理考量
All psychological research must follow strict ethical guidelines to protect participants’ wellbeing. The British Psychological Society (BPS) provides principles such as informed consent, the right to withdraw, confidentiality, protection from harm and debriefing. In CIE IGCSE Psychology, you are expected to recognise ethical issues in studies like Milgram’s obedience experiment, where participants were deceived about the true purpose and experienced significant stress. Modern ethical standards would not permit that study without substantial modifications.
所有心理学研究都必须遵循严格的伦理准则，以保护被试的福祉。英国心理学会（BPS）提出了知情同意、随时退出权、保密、免受伤害和事后解释等原则。在CIE IGCSE心理学中，你需要识别米尔格拉姆服从实验这类研究中的伦理问题——被试被欺骗了实验目的，并承受了显著压力。现代伦理标准已不允许未经重大修改就开展此类研究。
When an investigation involves animals, additional considerations arise. Researchers must minimise suffering, use the smallest number of animals necessary and ensure that any potential benefits of the research justify the procedures. Understanding ethics helps you not only evaluate classic studies but also design hypothetical proposals that would gain approval from an ethics committee.
若研究涉及动物，则有更多伦理考量。研究者必须尽可能减少动物痛苦，使用最低必要数量，并确保研究的潜在收益足以证明程序的合理性。理解伦理规范，不仅能帮助你评析经典实验，还能在构想研究提案时使其获得伦理委员会批准。
4. Memory: Models and Processes | 记忆：模型与过程
The multi-store model of memory, proposed by Atkinson and Shiffrin, describes memory as consisting of three separate stores: the sensory register, short-term memory (STM) and long-term memory (LTM). Information flows from the senses into the sensory register, where attention transfers it to STM. With rehearsal, material then moves into LTM for more permanent storage. The model explains primacy and recency effects in serial recall, as the first words (rehearsed into LTM) and the last words (still in STM) are remembered best.
由阿特金森和希夫林提出的多存储记忆模型将记忆描述为由三个分离的存储系统组成：感觉登记器、短期记忆与长期记忆。信息从感官进入感觉登记器，经注意进入短期记忆；再经复述，转入长期记忆得以较持久储存。该模型能解释序列回忆中的首因效应与近因效应——最先出现的单词（已复述进入长时记忆）和最后出现的单词（仍在短时记忆）回忆成绩最优。
Baddeley and Hitch later refined the short-term concept into a more dynamic working memory model with a central executive, phonological loop and visuospatial sketchpad. The phonological loop deals with auditory information, while the visuospatial sketchpad handles visual and spatial data. The central executive coordinates these slave systems and allocates attention. Evidence for the phonological loop comes from the word-length effect, showing that shorter words are easier to recall temporarily.
巴德利与希奇后来将短时记忆概念升级为更具动态的工作记忆模型，包含中央执行器、语音回路和视空间模板。语音回路处理听觉信息，视空间模板负责视觉与空间数据，中央执行器则协调这两个从属系统并分配注意。语音回路的证据来自词长效应，即音节较短的单词更容易被暂时记住。
Encoding in memory occurs through visual, acoustic or semantic codes. Semantic encoding – processing the meaning of information – tends to produce the most durable LTM traces. This is why elaborative rehearsal, which links new material to existing knowledge, is far more effective than simply repeating words aloud.
记忆编码可通过视觉编码、听觉编码或语义编码进行。语义编码——加工信息的意义——往往形成最牢固的长期记忆痕迹。这就是为什么精细复述（将新内容与已有知识联结）远胜于简单大声重复单词的原因。
5. Forgetting and Memory Accuracy | 遗忘与记忆准确性
Forgetting is not a single process. Decay theory suggests that memory traces fade over time if not accessed, but research suggests that interference is a more significant cause of forgetting. Proactive interference occurs when old learning disrupts new learning, while retroactive interference happens when new learning disrupts old memories. Context and state also matter: recall is better when the retrieval environment matches the learning environment (context-dependent memory) or when internal states are similar (state-dependent memory).
遗忘并非单一过程。衰退理论认为，若不启用，记忆痕迹会随时间消逝，但研究表明干扰才是更主要的遗忘原因。前摄干扰指旧学习干扰新学习，倒摄干扰则是新学习扰乱旧记忆。情境与状态同样重要：提取环境与学习环境匹配时（情境依赖记忆），或身心状态相似时（状态依赖记忆），回忆效果更佳。
Human memory is reconstructive, not a perfect recording. Bartlett demonstrated this with ‘The War of the Ghosts’ study, showing that story recall becomes shorter, more coherent and fitted to cultural schemas. Schemas are mental frameworks that organise past experiences and influence how we encode, store and retrieve information. Eyewitness testimony research by Loftus revealed how leading questions and post-event information can alter memories, highlighting serious implications for the legal system.
人类记忆是重构性的，而非完美录像。巴特利特通过“幽灵的战争”故事回忆实验证明，回忆会变得更简短、更连贯，并融入文化图式。图式是组织过往经验的心理框架，影响着信息的编码、存储与提取。洛夫特斯的目击者证词研究则揭示了误导性提问和事后信息如何改变记忆，为司法体系敲响警钟。
6. Language and Thought | 语言与思维
The relationship between language and thought has generated rich debate. The Sapir-Whorf hypothesis proposes that language determines or strongly influences thinking. A stronger version (linguistic determinism) claims that language completely controls cognition, while a weaker version (linguistic relativity) argues that language merely influences habitual thought patterns. Studies of colour perception across different language groups provide some support for the softer view, but the strong determinism claim is largely rejected.
语言与思维的关系激起了丰富争论。萨丕尔-沃尔夫假说提出，语言决定或强烈影响思维。强版本（语言决定论）认为语言完全支配认知，弱版本（语言相对论）则认为语言仅影响惯常思维模式。对不同语言群体颜色知觉的研究为弱假说提供了一定支持，但强决定论主张在很大程度上已被否定。
Piaget focused on children’s cognitive development, arguing that language growth depends on prior cognitive structures. According to him, children must pass through specific stages of sensorimotor and pre-operational thinking before language can flourish. Vygotsky offered a contrasting view: language and thought develop independently at first, but around the age of two, they merge and language becomes a powerful tool for guiding behaviour (private speech) and problem-solving. Both theories highlight the close link between language and cognition, though they differ on causality.
皮亚杰关注儿童认知发展，认为语言的发展依赖先前的认知结构。他认为儿童必须依次经历感知运动阶段与前运算阶段，语言才能蓬勃发展。维果茨基则提出不同观点：语言与思维最初各自独立发展，约两岁时二者融合，语言成为指导行为（自言自语）和解决问题的有力工具。两派理论都强调了语言与认知的紧密联系，但在因果方向上意见相左。
7. Personality and Self-concept | 人格与自我概念
Personality comprises the enduring patterns of thinking, feeling and behaving that make an individual unique. Freud’s psychodynamic theory divides personality into the id (instinctual drives), ego (reality-based mediator) and superego (moral conscience). Unconscious conflicts between these parts, often stemming from childhood, shape adult personality. Defence mechanisms such as repression and displacement are tactics the ego uses to reduce anxiety. Although Freud’s ideas are not fully testable, they introduced the influential notion of the unconscious mind.
人格指使个体独一无二的持久思维、情感与行为模式。弗洛伊德的心理动力学理论将人格划分为本我（本能驱力）、自我（现实调停者）和超我（道德良知）。这三者间的无意识冲突往往源于童年，塑造着成年后的人格。压抑、转移等防御机制是自我用来减少焦虑的策略。尽管弗洛伊德的观点难以全面检验，但它引入了影响深远的无意识概念。
Eysenck proposed a biological trait theory centred on three dimensions: extraversion–introversion, neuroticism–stability and psychoticism–normality. According to this PEN model, extraverts have a lower baseline level of cortical arousal and seek external stimulation, whereas introverts are easily over-aroused and avoid overstimulation. Neuroticism relates to the reactivity of the sympathetic nervous system. Trait theory offers measurable, scientific ways to compare individuals, though it can neglect situational influences on behaviour.
艾森克提出了以三个维度为核心的生物特质理论：外倾–内倾、神经质–稳定性以及精神质–正常。依据其PEN模型，外倾者大脑皮层基础唤醒水平较低，需寻求外部刺激；内倾者则容易过度唤醒，倾向于回避刺激。神经质与交感神经系统反应性有关。特质理论提供了可测量、可比较的科学研究路径，但可能忽略情境对行为的影响。
Self-concept is the overall perception we hold of ourselves, encompassing self-image, ideal self and self-esteem. Rogers emphasised that a large gap between ideal self and actual self (incongruence) can lead to low self-esteem and psychological distress. He argued that unconditional positive regard from significant others is essential for a congruent, healthy self-concept. These ideas remain central to person-centred counselling and classroom practice today.
自我概念是我们对自我的整体认知，涵盖自我形象、理想自我和自尊。罗杰斯强调，若理想自我与现实自我之间存在巨大落差（不协调），便可能导致低自尊与心理困扰。他认为重要他人提供的无条件积极关注是形成协调、健康自我概念的关键。这些理念至今仍是来访者中心疗法及教育实践的核心。
8. Social Influence: Conformity and Obedience | 社会影响：从众与服从
Conformity is a change in behaviour or belief due to real or imagined group pressure. Asch’s classic line-judgement study demonstrated that about 37% of naive participants conformed to an obviously wrong majority on critical trials. Conformity increased when the group was unanimous, when participants had low self-esteem and when the task was ambiguous. Normative social influence (desire to be liked) and informational social influence (desire to be right) explain why people yield. Dissenters drastically reduce conformity rates, showing the power of social support.
从众是因真实或想象的群体压力而导致的行为或信念改变。阿希的经典线条判断实验表明，在关键试次中，约37%的天真被试屈从了明显错误的大多数。当群体意见一致、被试自尊较低或任务模糊时，从众比例升高。规范性社会影响（渴望被喜欢）和信息性社会影响（渴望正确）解释了人们的屈服行为。只要有少数异议者，从众率便急剧下降，显示了社会支持的强大力量。
Obedience involves following orders from an authority figure. Milgram’s shocking voltage study revealed that 65% of ordinary men administered what they believed were hazardous shocks to a learner. Obedience declined when the authority figure was remote, when the learner was in the same room or when the location was a run-down office. Legitimate authority, proximity and the absence of rebellious models all contributed to the high obedience rate. The study sparked profound ethical debate and led to stricter guidelines for psychological experiments.
服从指遵循权威人物命令的行为。米尔格拉姆的电击电压研究表明，65%的普通男性对学习者实施了他们认为可能致命的电击。当权威人物不在眼前、学习者同处一室或实验地点换作简陋办公室时，服从率下降。合法权威、接近性以及缺少反抗榜样都促成了高服从率。这项研究引发了深刻的伦理辩论，并催生了更严格的心理学实验指南。
9. Stereotypes, Prejudice and Discrimination | 刻板印象、偏见与歧视
A stereotype is a shared, oversimplified belief about a group of people, often based on assumptions rather than evidence. While stereotypes can help us process information quickly, they frequently ignore individuality and lead to errors. Prejudice is the emotional attitude (usually negative) held toward a group, and discrimination is the behavioural consequence – treating someone unfairly because of their group membership. These three concepts are linked but not identical; a prejudiced person may not always discriminate, and vice versa.
刻板印象是对某一群体共有的、过度简化了的信念，常基于臆断而非证据。虽然刻板印象能帮助我们快速处理信息，却常忽略个体差异并导致错误。偏见是对某群体的（通常为负面的）情感态度，歧视则是行为后果——因所属群体身份而给予不公正对待。这三个概念相互关联但并不等同；持有偏见者未必每次都实施歧视，反之亦然。
One key study on prejudice development is Sherif’s Robbers Cave experiment, which showed how competition between groups creates hostility and how superordinate goals reduce it. Allport’s contact hypothesis suggests that intergroup contact reduces prejudice under conditions of equal status, common goals, cooperation and supportive authorities. Reducing stereotypes, for example through cooperative learning in diverse classrooms, is an evidence-based strategy for tackling discrimination.
谢里夫的罗伯斯山洞实验是偏见发展的关键研究，它展示了群体间竞争如何制造敌意，以及共同目标如何消除敌意。奥尔波特的接触假说指出，在平等地位、共同目标、合作与支持性权威等条件下，群体接触可减少偏见。通过混合班级中的合作学习来减少刻板印象，已成为应对歧视的证据本位策略。
10. Aggression and Altruism | 攻击性与利他行为
Aggression is behaviour intended to harm another person. Biological explanations focus on hormones like testosterone and brain structures such as the amygdala, but social-psychological theories offer a fuller picture. The frustration-aggression hypothesis, revised by Berkowitz, claims that frustration triggers aggression, especially when aggressive cues (such as weapons) are present. Bandura’s social learning theory argues that aggression is learned through observation, imitation and reinforcement, as famously shown in the Bobo doll experiment where children imitated adult models’ aggressive actions.
攻击性指意图伤害他人的行为。生物学解释聚焦睾酮等激素及杏仁核等脑结构，但社会心理学理论提供了更完整的图景。伯科威茨修正的挫折-攻击假说认为，挫折诱发攻击，特别是有攻击性线索（如武器）存在时。班杜拉的社会学习理论主张，攻击行为通过观察、模仿和强化习得，波波娃娃实验著名地展示了儿童如何模仿成人的攻击行为。
Altruism is selfless helping behaviour without obvious personal gain. Latané and Darley’s decision model explains why bystanders sometimes fail to help. A person must notice the event, interpret it as an emergency, assume personal responsibility, decide how to help and finally implement the help. Pluralistic ignorance (looking to others who also appear calm) and diffusion of responsibility (feeling less responsible in a larger group) often prevent people from intervening. Understanding these barriers can promote more helpful, prosocial behaviour in real life.
利他行为是不求明显个人利益的无私助人行为。拉坦内和达利的决策模型解释了旁观者有时不出手相助的原因。助人者须注意到事件、将其判断为紧急状况、承担个人责任、决定如何帮忙并最终实施帮助。多元无知（观察他人看似平静）和责任扩散（在较大群体中感到个人责任减轻）经常阻碍人们介入。理解这些障碍有助于在现实生活中激发更多的亲社会行为。
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