📚 Core Knowledge Review for Year 13 CIE Psychology | Year 13 CIE 心理学：核心知识点梳理
This article provides a comprehensive revision of the key topics in CIE Psychology for Year 13. We will cover cognitive, social, developmental, and abnormal psychology, as well as essential research methods and issues. Each section highlights the core theories, studies, and evaluation points you need to master for the exam.
本文全面梳理了 CIE 心理学 Year 13 的核心知识点。涵盖认知心理学、社会心理学、发展心理学、变态心理学，以及重要的研究方法和议题。每个小节都突出了考试需要掌握的核心理论、经典研究和评价要点。
1. Cognitive Psychology: Memory Models | 认知心理学：记忆模型
The multi-store model (Atkinson & Shiffrin, 1968) proposes three separate memory stores: sensory register, short-term memory (STM), and long-term memory (LTM). Information flows linearly through these stores via attention and rehearsal. The capacity of STM is 7±2 chunks, and its duration is about 18–30 seconds without rehearsal.
多储存模型（Atkinson & Shiffrin, 1968）提出三个独立的记忆储存：感觉登记、短时记忆和长时记忆。信息通过注意和复述在这些储存间线性流动。短时记忆的容量为 7±2 个组块，无复述时持续时间约 18–30 秒。
The working memory model (Baddeley & Hitch, 1974) replaced the unitary STM with a more dynamic system: central executive, phonological loop, visuospatial sketchpad, and episodic buffer. The central executive directs attention and coordinates the slave systems. Dual-task studies support the model’s division of resources.
工作记忆模型（Baddeley & Hitch, 1974）用更动态的系统取代了单一的短时记忆：中央执行器、语音回路、视空间画板和情景缓冲区。中央执行器引导注意力并协调子系统。双任务研究支持该模型的资源划分。
Key studies: Baddeley (1966) investigated encoding in LTM using semantically similar words; Peterson & Peterson (1959) measured STM duration using trigrams and interference tasks; Baddeley et al. (1975) provided evidence for the word-length effect in the phonological loop. Evaluation points include the models’ ability to explain practical memory phenomena and limitations such as the vague nature of the central executive.
关键研究：Baddeley (1966) 使用语义相似词研究长时记忆编码；Peterson & Peterson (1959) 使用三字母组和干扰任务测量短时记忆持续时间；Baddeley 等 (1975) 为语音回路中的词长效应提供了证据。评价要点包括模型对实际记忆现象的解释力，以及中央执行器模糊性等局限。
2. Social Psychology: Obedience and Conformity | 社会心理学：服从与从众
Milgram’s (1963) obedience study revealed that 65% of participants administered the maximum 450V shock when instructed by an authority figure in a lab coat. Situational factors such as proximity of the victim, location prestige, and uniform presence significantly affected obedience levels. The agentic state theory suggests individuals shift responsibility to the authority, entering an agentic state.
Milgram (1963) 的服从实验揭示，65% 的参与者在穿实验室外套的权威人物指令下施加了最高 450V 的电击。情境因素如受害者距离、场所声望和制服存在显著影响服从水平。代理状态理论认为个体会将责任转移给权威，进入代理状态。
Asch’s (1955) conformity experiments demonstrated that about 37% of naïve participants conformed to an obviously incorrect majority judgment. Conformity decreased when there was a dissenting partner or when responses were private. Normative social influence (desire to fit in) and informational social influence (desire to be correct) explain conformity.
Asch (1955) 的从众实验显示，约 37% 的不知情参与者顺从了明显错误的多数人判断。当有异议伙伴或私下作答时，从众程度下降。规范社会影响（渴望融入）和信息社会影响（渴望正确）可以解释从众现象。
Evaluation includes ethical concerns in Milgram’s research (deception, lack of protection from harm), the internal validity debate (did participants truly believe the shocks were real?), and cross-cultural replications that support the universality of obedience dynamics. Individual differences like authoritarian personality (Adorno et al., 1950) also predict higher obedience.
评价包括 Milgram 研究的伦理问题（欺骗、未保护免受伤害）、内部效度辩论（参与者是否真的相信电击真实），以及跨文化重复实验对服从动力普遍性的支持。个体差异如权威主义人格（Adorno 等, 1950）也能预测更高的服从。
3. Developmental Psychology: Attachment | 发展心理学：依恋
Bowlby’s (1969) monotropic theory argues that infants have an innate drive to form one primary attachment, usually with the mother, which serves as a secure base. This attachment has long-term consequences through the internal working model (IWM), influencing future relationships and parenting. The critical period for attachment is the first 2–3 years.
Bowlby (1969) 的单一依恋理论认为婴儿天生具有形成主要依恋（通常与母亲）的驱力，作为安全基地。这一依恋通过内部工作模型（IWM）产生长远影响，塑造未来的关系和育儿行为。依恋的关键期是出生后的 2–3 年。
Ainsworth’s Strange Situation (1978) identified three attachment patterns: secure (type B, 66%), insecure-avoidant (type A, 22%), and insecure-resistant (type C, 12%). Secure infants use the caregiver as a safe base, explore freely, and show distress at separation but are easily comforted upon reunion. Insecure patterns show avoidance or ambivalence.
Ainsworth 的陌生情境法 (1978) 确定了三种依恋类型：安全型（B 型，66%）、不安全-回避型（A 型，22%）和不安全-矛盾型（C 型，12%）。安全型婴儿把照顾者作为安全基地，自由探索，分离时痛苦但重聚时容易被安抚。不安全型则表现出回避或矛盾行为。
Cultural variations (Van IJzendoorn & Kroonenberg, 1988 meta-analysis) show that secure attachment is the most common across cultures, but distributions of insecure types vary. This challenges the universality assumption. The temperament hypothesis (Kagan) suggests infant temperament, not just caregiver sensitivity, determines attachment quality.
文化差异（Van IJzendoorn & Kroonenberg, 1988元分析）显示安全型依恋在不同文化中最常见，但不安全类型的分布存在差异，这挑战了普遍性假设。气质假说（Kagan）认为婴儿气质，而不仅仅是照顾者敏感性，决定依恋质量。
4. Abnormal Psychology: Schizophrenia | 变态心理学：精神分裂症
Schizophrenia is a psychotic disorder characterised by positive symptoms (hallucinations, delusions, disorganised speech) and negative symptoms (avolition, speech poverty, affective flattening). Diagnosis relies on classification systems like DSM-5 (at least two symptoms for 6 months, including one positive) and ICD-11. Reliability and validity of diagnosis are key issues.
精神分裂症是一种精神病性障碍，特征包括阳性症状（幻觉、妄想、言语紊乱）和阴性症状（意志减退、言语贫乏、情感平淡）。诊断依赖 DSM-5（至少两种症状持续 6 个月，包括一种阳性症状）和 ICD-11 等分类系统。诊断的信度和效度是关键议题。
The dopamine hypothesis proposes that hyperactivity of dopamine D₂ receptors in the mesolimbic pathway causes positive symptoms. Evidence includes the effectiveness of typical antipsychotics (dopamine antagonists) and drugs like amphetamine that increase dopamine and induce psychosis. Updated versions incorporate prefrontal hypodopaminergia explaining negative symptoms.
多巴胺假说提出，中脑边缘通路多巴胺 D₂ 受体过度活跃导致阳性症状。证据包括典型抗精神病药（多巴胺拮抗剂）的疗效，以及安非他命等增加多巴胺的药物可诱发精神病。更新版本纳入了前额叶多巴胺功能不足对阴性症状的解释。
Family, twin, and adoption studies (e.g., Gottesman, 1991) show a strong genetic component: MZ concordance rate is about 48%, versus 17% for DZ twins. The diathesis–stress model integrates biological vulnerability with environmental stressors. Cognitive explanations (Frith’s meta-representation deficit) link symptoms to impairments in self-monitoring and theory of mind.
家族、双生子和收养研究（如 Gottesman, 1991）显示强大的遗传因素：同卵双生子一致率约 48%，而异卵双生子为 17%。素质-压力模型将生物易感性与环境压力源整合。认知解释（Frith 的元表征缺陷）将症状与自我监控和心理理论受损联系起来。
5. Research Methods: Experiments and Designs | 研究方法：实验与设计
Experiments manipulate an independent variable (IV) to observe its effect on a dependent variable (DV) while controlling extraneous variables. Laboratory experiments offer high internal validity but may lack ecological validity. Field experiments have higher mundane realism but less control. Natural and quasi-experiments lack random allocation and thus have lower internal validity but are useful when manipulation is unethical.
实验操纵自变量以观察其对因变量的影响，同时控制额外变量。实验室实验内在效度高但可能缺乏生态效度。现场实验日常真实性更高但控制较少。自然实验和准实验缺乏随机分配，内部效度较低，但在操纵不道德时很有用。
Independent measures design uses different participants in each condition, avoiding order effects but risking participant variables. Repeated measures design uses the same participants, controlling individual differences but prone to order effects countered by counterbalancing. Matched pairs design matches participants on key variables, balancing the pros and cons.
独立组设计每个条件使用不同参与者，避免顺序效应但可能有参与者变量问题。重复测量设计使用相同参与者，控制个体差异但易受顺序效应影响，通过平衡设计来抵消。配对组设计在关键变量上匹配参与者，平衡优缺点。
Hypotheses must be operationalised. A null hypothesis states no effect; experimental/alternative hypotheses can be directional (one-tailed) or non-directional (two-tailed). The choice of statistical test (e.g., chi-square, Mann–Whitney, Spearman’s rho) depends on the level of measurement (nominal, ordinal, interval) and experimental design.
假设必须操作化。虚无假设声明无效果；实验假设/备择假设可以是方向性（单尾）或非方向性（双尾）的。统计检验的选择（如卡方、Mann–Whitney、Spearman’s rho）取决于测量层次（名义、顺序、等距）和实验设计。
6. Research Methods: Observations and Self-reports | 研究方法：观察与自陈
Observations can be participant or non-participant, overt or covert, structured (using coding schemes) or unstructured. Event sampling and time sampling are systematic ways to record behaviour. Inter-rater reliability is crucial for structured observations, measured by correlation or percentage agreement.
观察可以是参与性或非参与性、公开或隐蔽、结构性（使用编码方案）或非结构性的。事件取样和时间取样是记录行为的系统方法。观察者间信度对结构性观察至关重要，通过相关或一致百分比测量。
Self-report methods include questionnaires and interviews (structured, semi-structured, unstructured). Questionnaires have closed and open questions; Likert scales provide ordinal data. Interviews allow deeper exploration but are susceptible to social desirability bias and interviewer effects. Reliability is checked via test-retest or inter-interviewer reliability; validity through content and construct validity.
自陈方法包括问卷和访谈（结构化、半结构化和非结构化）。问卷有封闭式和开放式问题；李克特量表提供顺序数据。访谈能深入探究但易受社会赞许性偏差和访谈者效应影响。信度通过重测信度或访谈者间信度；效度通过内容效度和建构效度检验。
7. Data Analysis: Inferential Statistics | 数据分析：推断统计
Inferential statistics determine whether the results are significant. The conventional significance level in psychology is p ≤ 0.05. A Type I error is a false positive (rejecting a true null), Type II a false negative (failing to reject a false null). The calculated value must equal or exceed the critical table value to be significant.
推断统计判断结果是否显著。心理学中传统的显著性水平是 p ≤ 0.05。一类错误是假阳性（拒绝真的虚无假设），二类错误是假阴性（未能拒绝假的虚无假设）。计算值必须等于或超过临界表值才显著。
Tests of difference: Chi-square for nominal data (independent samples); Mann–Whitney U for ordinal data, independent groups; Wilcoxon signed-rank for ordinal, repeated measures; unrelated and related t-tests for interval data. Parametric tests assume normal distribution and homogeneity of variance; non-parametric tests make no such assumptions.
差异检验：卡方用于名义数据（独立样本）；Mann–Whitney U 用于顺序数据，独立组；Wilcoxon 符号秩用于顺序数据，重复测量；无关和相关 t 检验用于等距数据。参数检验假设正态分布和方差齐性；非参数检验无此假设。
Tests of correlation: Spearman’s rho for ordinal data, Pearson’s r for interval data. Correlation coefficients range from –1 to +1. Effect size (e.g., Cohen’s d) and confidence intervals are increasingly preferred for evaluating practical significance beyond p-values.
相关检验：Spearman’s rho 用于顺序数据，Pearson’s r 用于等距数据。相关系数范围从 –1 到 +1。效应量（如 Cohen’s d）和置信区间越来越受重视，用于评估超越 p 值的实际意义。
8. Issues and Debates: Nature vs Nurture | 议题与辩论：先天与后天
The nature versus nurture debate concerns the relative contribution of genetic inheritance and environmental factors to behaviour. Twin and adoption studies are key methods to tease apart these influences. Heritability estimates (h²) indicate the proportion of phenotypic variance attributable to genetic variance in a given population.
先天与后天之争关注遗传和环境因素对行为的相对贡献。双生子和收养研究是区分这些影响的关键方法。遗传率估计（h²）表示某个群体中表型变异归因于遗传变异的比例。
Epigenetics demonstrates that environmental factors (e.g., diet, stress) can alter gene expression without changing the DNA sequence. This challenges a simplistic nature–nurture dichotomy. The interactionist approach, represented by the diathesis–stress model, is widely accepted: genetic predisposition interacts with environmental triggers to produce behaviour.
表观遗传学表明，环境因素（如饮食、压力）可在不改变 DNA 序列的情况下改变基因表达。这挑战了简单的先天-后天二分法。以素质-压力模型为代表的交互论方法被广泛接受：遗传倾向与环境触发因素相互作用，产生行为。
9. Issues and Debates: Reductionism vs Holism | 议题与辩论：还原论与整体论
Reductionism explains complex phenomena by breaking them down into simpler components. Biological reductionism explains behaviour in terms of neurotransmitters and brain structures; environmental reductionism (e.g., behaviourism) reduces behaviour to stimulus–response associations. Holism argues that the whole is greater than the sum of its parts and that behaviour can only be understood within its full context.
还原论通过将复杂现象分解为更简单的成分来解释。生物还原论用神经递质和脑结构解释行为；环境还原论（如行为主义）将行为还原为刺激-反应联结。整体论认为整体大于部分之和，行为只能在整体背景下理解。
Strengths of reductionism include its scientific rigour and ability to derive precise predictions and interventions. Weaknesses include oversimplification and loss of meaning. Holistic approaches, such as humanistic psychology, are closer to subjective experience but often lack scientific testability. The levels of explanation framework (molecular, neural, behavioural, social) offers a middle ground.
还原论的优点包括科学严谨性和得出精确预测和干预的能力。缺点包括过度简化和意义缺失。整体论方法，如人本主义心理学，更接近主观体验，但往往缺乏科学的可检验性。解释层次框架（分子、神经、行为、社会）提供了一种中间立场。
10. Issues and Debates: Ethical Considerations | 议题与辩论：伦理考量
Psychological research with humans must follow ethical guidelines: informed consent, right to withdraw, confidentiality, protection from psychological and physical harm, debriefing, and deception (which must be justified and followed by extensive debriefing). Cost–benefit analyses weigh the value of knowledge against potential harm.
涉及人类的心理学研究必须遵循伦理准则：知情同意、随时退出权、保密、免受心理和身体伤害、事后解说，以及欺骗（必须有正当理由并随后进行透彻的事后解说）。成本效益分析权衡知识价值与潜在伤害。
Animal research follows the 3Rs: Replacement (use alternatives where possible), Reduction (minimise number of animals), and Refinement (improve welfare and minimise suffering). The biological continuity argument justifies animal use to understand human processes, but critics argue that differences in consciousness and social context limit generalisability.
动物研究遵循 3R 原则：替代（尽量使用替代方案）、减少（减少动物数量）和优化（改善福利、减少痛苦）。生物学连续性论证支持用动物理解人类过程，但批评者指出，意识和社会背景的差异限制了可推广性。
11. Classic Study: Bandura’s Bobo Doll Experiment | 经典研究：Bandura 的波波玩偶实验
Bandura et al. (1961) investigated whether aggression can be learned through observation and imitation (social learning theory). Children aged 3–6 observed an adult model acting aggressively towards a Bobo doll (physical aggression, verbal aggression, novel hostile phrases) or a non-aggressive model. Children were then taken to a room with aggressive and non-aggressive toys, and their behaviour was recorded through a one-way mirror.
Bandura 等 (1961) 研究攻击行为是否可以通过观察和模仿习得（社会学习理论）。3–6 岁的儿童观察成年榜样对波波玩偶做出攻击行为（身体攻击、言语攻击、新颖敌意短语）或非攻击榜样。然后儿童被带到有攻击性和非攻击性玩具的房间，通过单向镜记录其行为。
Results: children in the aggressive model condition imitated specific aggressive acts and used novel aggressive phrases. Boys were more physically aggressive, especially after observing a male model; girls showed more verbal aggression. The study provided strong evidence for observational learning but faced ecological validity critiques (novelty of the doll, lack of real-life context) and ethical issues (encouraging aggression in children).
结果：攻击榜样组的儿童模仿了特定的攻击行为并使用了新颖的攻击短语。男孩更具身体攻击性，特别是在观察男性榜样后；女孩更多言语攻击。该研究为观察学习提供了有力证据，但面临生态效度批评（玩偶的新奇性，缺乏真实生活情境）和伦理问题（鼓励儿童攻击性）。
12. Contemporary Applications: Cognitive Behavioural Therapy | 当代应用：认知行为疗法
Cognitive Behavioural Therapy (CBT) combines cognitive restructuring (identifying and challenging irrational thoughts) with behavioural techniques (exposure, behavioural activation). It is a leading evidence-based treatment for depression, anxiety disorders, and schizophrenia (when combined with medication). Beck’s cognitive therapy for depression targets the negative cognitive triad: negative views of self, world, and future.
认知行为疗法（CBT）结合认知重构（识别和挑战非理性思维）与行为技术（暴露、行为激活）。它是抑郁症、焦虑症和精神分裂症（结合药物时）的主要循证治疗。Beck 的抑郁症认知疗法针对负面认知三角：对自我、世界和未来的负面看法。
In schizophrenia, CBTp aims to help patients cope with delusions and hallucinations by examining evidence, generating alternative explanations, and reducing distress. NICE guidelines recommend CBTp for all people with schizophrenia. Effectiveness studies show moderate symptom reduction and improved functioning; however, dropout rates and the therapy’s demanding cognitive nature for some patients limit its applicability.
在精神分裂症中，CBTp 旨在通过检查证据、生成替代解释和减轻痛苦来帮助患者应对妄想和幻觉。NICE 指南推荐所有精神分裂症患者接受 CBTp。有效性研究显示中等程度的症状减少和功能改善；然而，脱落率和治疗对某些患者的认知要求限制了其适用性。
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