📚 Year 11 CAIE Psychology: Case Study Practical Exercises | CAIE 11年级心理学：案例分析实战演练
Case studies are one of the most fascinating and powerful tools in psychology. They allow researchers to explore a single individual, group or event in extraordinary depth, generating rich, detailed data that can challenge existing theories or inspire new ones. For CAIE Year 11 Psychology students, mastering the art of analysing a case study is essential, not only for exam success but also for developing a critical understanding of how real psychological knowledge is constructed. This article will guide you through everything you need to know, from key features and famous examples to a step-by-step analysis method and a full practice scenario with examiner tips.
案例研究是心理学中最引人入胜且有力的工具之一。它使研究者能够极其深入地探索单一个体、群体或事件，生成丰富而详细的数据，从而挑战现有理论或启发新的理论。对于CAIE 11年级心理学学生来说，掌握分析案例研究的技巧至关重要，这不仅关系到考试成绩，也有助于培养对真实心理学知识如何建构的批判性理解。本文将带你了解从关键特征、经典实例到分步分析方法，以及包含考官提示的完整实战演练。
1. Introduction to Case Studies in Psychology | 心理学案例研究简介
A case study is an in-depth investigation of a single person, group, institution or event. Rather than gathering a little data from many people, as in a survey or experiment, a case study collects a great deal of qualitative and sometimes quantitative data from one case. The aim is to gain a rich, holistic understanding of the subject within its real-life context. In the CAIE Psychology syllabus, you will encounter both learning about case studies as a research method and using case studies to illustrate psychological concepts.
案例研究是对单一个人、群体、机构或事件的深入调查。与问卷调查或实验从许多人那里收集少量数据不同，案例研究是从单个案例中收集大量定性（有时也有定量）数据。其目的是在真实生活情境中获得对研究对象的丰富而整体的理解。在CAIE心理学教学大纲中，你既要了解案例研究作为一种研究方法，也要利用案例研究来说明心理学概念。
Psychological case studies often arise from unusual or clinical situations. For example, a child with extraordinary memory, a person recovering from brain injury, or a group living in isolation. These cases provide a window into mental processes and behaviour that would be impossible to replicate in a laboratory. While they cannot establish cause and effect like a true experiment, their strength lies in uncovering the complexity and uniqueness of human experience.
心理学案例研究通常源于不寻常或临床情境。例如，一个拥有非凡记忆力的儿童、一名从脑损伤中恢复的人，或一个与世隔绝的群体。这些案例为心理过程和行为的探索提供了实验室中无法复制的窗口。尽管它们不能像真实实验那样确定因果关系，但其优势在于揭示人类经验的复杂性和独特性。
2. Key Features of a Psychological Case Study | 心理学案例研究的关键特征
Understanding the fundamental characteristics of a case study will help you identify and evaluate them in exam questions. The key features include a single participant or small group (the ‘case’), idiographic focus, use of multiple data sources, and longitudinal design. Idiographic means the focus is on the unique details of the individual rather than on deriving universal laws. This is in contrast to the nomothetic approach of most experimental research.
理解案例研究的基本特征有助于你在考题中进行识别和评价。关键特征包括：单个参与者或小群体（即“案例”）、个别化聚焦、使用多种数据来源以及纵向设计。个别化意味着聚焦于个体的独特细节，而非推导普遍规律。这与大多数实验研究的通则式取向形成对比。
Data is often gathered through interviews, observations, questionnaires, diaries, medical records and sometimes psychological tests. The use of triangulation – comparing information from different sources – enhances the validity of findings. Because case studies frequently involve detailed, rich descriptive data, they are primarily qualitative, although they may also contain quantitative scores, such as IQ or memory test results.
数据通常通过访谈、观察、问卷、日记、医疗记录以及有时通过心理测验来收集。使用三角验证法（比较不同来源的信息）可以增强研究结果的有效性。由于案例研究通常涉及详细、丰富的描述性数据，它们主要是定性性质的，但也可能包含量化分数，例如智商或记忆力测试结果。
Longitudinal means the study takes place over a long period, sometimes years or even a lifetime. This allows researchers to track changes and development. However, it also requires substantial resources and can be affected by participant attrition or changes in the researcher’s focus.
纵向研究意味着研究要在一个较长时间段内进行，有时长达数年甚至一生。这使得研究者能够追踪变化和发展。但是，这需要大量资源，并且可能受到参与者流失或研究者关注点变化的影响。
3. Famous Case Studies You Should Know | 你应该知道的经典案例研究
Familiarity with classic case studies will enrich your exam answers and provide ready examples for discussion. Start with the case of Little Hans, used by Freud to illustrate the Oedipus complex and psychoanalysis. The study relied on reports from Hans’s father and offered a wealth of qualitative data about the boy’s phobia of horses. Another famous case is Genie, a girl who suffered extreme social isolation and was studied to understand language development and the critical period hypothesis.
熟悉经典案例研究会丰富你的考试答案，并为你提供现成的讨论例子。从小汉斯（Little Hans）的案例开始，弗洛伊德用它来说明俄狄浦斯情结和精神分析。这项研究依赖于汉斯父亲的报告，并提供了大量关于这个男孩对马的恐惧症的定性数据。另一个著名的案例是吉妮（Genie），一个遭受极端社会隔离的女孩，研究者通过她来理解语言发展和关键期假说。
The case of HM (Henry Molaison) revolutionised our understanding of memory. After surgery to relieve epilepsy, HM lost the ability to form new long-term memories, showing the distinction between different memory systems. Phineas Gage, a railway worker who survived an iron rod through his frontal lobe, is a landmark case for linking brain regions to personality and social behaviour. Studying these cases will make it easier to answer questions on biological, cognitive and developmental psychology.
HM（亨利·莫莱森）的案例彻底改变了我们对记忆的理解。在治疗癫痫的手术后，HM失去了形成新长时记忆的能力，展示了不同记忆系统之间的区别。菲尼亚斯·盖奇（Phineas Gage），一名铁路工人，在一根铁棍穿过额叶后幸存下来，这一里程碑案例建立了大脑区域与人格及社会行为之间的联系。研究这些案例将使回答生物、认知和发展心理学方面的问题变得更容易。
4. Case Study vs. Other Research Methods | 案例研究与其他研究方法的对比
To evaluate a case study properly, you must compare it with experiments, surveys, observations and interviews. The table below summarises some key differences that frequently appear in CAIE marking schemes.
为了正确地评价案例研究，你必须将其与实验、问卷、观察和访谈进行比较。下表总结了在CAIE评分方案中经常出现的一些关键差异。
| Research Method | Case Study | Experiment | Survey |
|---|---|---|---|
| Sample | Usually 1 or very few participants | Often dozens of participants in controlled conditions | Hundreds or thousands of participants |
| Data type | Mainly qualitative, rich and detailed | Mainly quantitative, can operationalise variables | Largely quantitative, self-report data |
| Cause & effect | Cannot establish cause and effect | Can infer cause and effect (if well controlled) | Cannot establish cause and effect |
| Generalisability | Very low; unique case limits generalisation | Higher if sample is representative | High if large, representative sample |
| Ethical issues | Anonymity difficult, intense relationship with participant | Informed consent, deception often used | Confidentiality, anonymity |
From the table you can see that case studies are unmatched when the goal is depth and when the phenomenon is rare. However, they lack the control of experiments and the broad coverage of surveys. Examiners expect you to show awareness of these trade-offs.
从表中可以看出，当目标在于深度研究且现象罕见时，案例研究是无与伦比的。然而，它们缺乏实验的控制性和问卷的广泛覆盖面。考官期望你展现出对这些利弊权衡的认识。
5. How to Analyse a Case Study – A Step-by-Step Guide | 如何分析案例研究 – 分步指南
When presented with an unfamiliar case study in the exam, follow these five steps. First, read the scenario carefully and highlight the key behaviours, background details and any psychological terms. Second, identify the psychological approach or topic that the question is targeting, such as memory, social influence or abnormality. Third, select relevant theories or studies that you can use to interpret the behaviour.
当在考试中面对一个不熟悉的案例研究时，请遵循以下五个步骤。第一，仔细阅读情境描述，标出关键行为、背景细节以及任何心理学术语。第二，确定问题所针对的心理学视角或主题，例如记忆、社会影响或异常行为。第三，选取可以用来解释该行为的相关理论或研究。
Fourth, apply the theory point by point. Do not simply list features of the theory; explain how each aspect is reflected in the description. For instance, if a child shows separation anxiety, link this to Bowlby’s attachment theory and explain what insecure attachment might look like in the given scenario. Fifth, offer a balanced evaluation: mention strengths of the case study approach (depth, ecological validity) and limitations (subjectivity, low generalisability). This structured approach will help you earn full marks in extended response questions.
第四，逐点运用理论。不要只是罗列理论的特征，而应解释每一方面是如何体现在描述中的。例如，如果一名儿童表现出分离焦虑，应将其与鲍尔比的依恋理论联系起来，并解释不安全依恋在该给定情境中可能呈现的样子。第五，给出平衡的评价：提及案例研究方法的优势（深度、生态效度）和局限（主观性、低可推广性）。这种结构化的方法将帮助你在扩展回答题中获取满分。
Remember to use psychological vocabulary correctly: terms like ‘operationalisation’, ‘validity’, ‘reliability’ and ‘ecological validity’ will impress examiners, but only if used precisely. Avoid vague statements such as ‘the study was good’ or ‘the study had many problems’. Instead, specify which aspects were strong or weak and why.
记住要正确使用心理学术语：像“操作化”、“效度”、“信度”和“生态效度”这样的词汇会给考官留下深刻印象，但只有在使用精确的情况下才有效。避免模糊的表述，如“这项研究很好”或“这项研究有许多问题”。相反，应明确指出哪些方面是强项或弱项，并说明原因。
6. Applying Theory to Case Studies | 将理论应用于案例研究
One of the most common tasks in a CAIE Psychology exam is to ‘Use your knowledge of psychology to explain behaviour’ from a case study. This requires you to bridge theory and the specific details of the case. Start by selecting the most appropriate theoretical framework. For example, if the case describes a person with low self-esteem who conforms easily, you might apply Asch’s conformity research or social identity theory.
CAIE心理学考试中最常见的任务之一就是“运用心理学知识解释案例中的行为”。这要求你搭建理论与案例具体细节之间的桥梁。首先要选择最适宜的理论框架。例如，如果案例描述了一个低自尊且容易从众的人，你可以运用阿希的从众研究或社会认同理论。
Then structure your paragraph around the PEEL technique: Point – state the relevant psychological concept; Evidence – quote or paraphrase the detail from the case study; Explanation – show how the concept explains the behaviour; Link – tie it back to the question or to a wider evaluation point. This ensures your answer remains focused and analytical rather than descriptive.
然后围绕PEEL技术组织你的段落：Point（观点）– 陈述相关的心理学概念；Evidence（证据）– 引用或转述案例研究中的细节；Explanation（解释）– 展示该概念如何解释行为；Link（联系）– 将其与问题或更广泛的评价要点联系起来。这确保你的回答保持聚焦和分析性，而非仅仅是描述性的。
Consider the case of a teenager who becomes aggressive after watching violent films. You could apply Bandura’s Social Learning Theory, arguing that attention, retention, reproduction and motivation are all present. Describe how each step is evidenced in the case. This demonstrates deep understanding and will push you into the top mark band.
考虑一个青少年在观看暴力电影后变得具有攻击性的案例。你可以运用班杜拉的社会学习理论，论证注意、保持、再现和动机四个过程均已出现。逐一描述这些步骤在案例中是如何得到证实的。这将展现出深刻的理解，并使你获得最高分数段。
7. Evaluating Case Studies – Strengths and Weaknesses | 评价案例研究 – 优点与缺点
Evaluation is a vital skill at Year 11. The main strengths of a case study are its ability to produce rich, in-depth data that provides insights into rare or unique phenomena. It has high ecological validity because the behaviour occurs in a natural context. It can also generate hypotheses for future experimental research and challenge established theories, leading to paradigm shifts.
评价是11年级学生的一项重要技能。案例研究的主要优点在于它能产生丰富、深入的数据，为罕见或独特现象提供洞察。它具有较高的生态效度，因为行为发生在自然情境中。此外，它还可以为未来的实验研究生成假设，并挑战既有理论，从而引发范式转变。
Weaknesses include low generalisability because a single case cannot represent a wider population. The researcher may become too involved, leading to subjective interpretation and low objectivity; this is known as researcher bias. Another problem is poor reliability—the exact procedures are not standardised, making replication difficult. In addition, it is often impossible to establish cause and effect because so many variables are interacting in the participant’s life.
缺点包括可推广性低，因为单个案例不能代表更广泛的人群。研究者可能介入过深，导致主观解释和低客观性；这被称为研究者偏见。另一个问题是信度低——确切的程序没有标准化，使得复制变得困难。此外，由于参与者生活中交互着诸多变量，往往无法确定因果关系。
When writing an evaluation in the exam, always support your points with examples. For instance, to illustrate low generalisability, mention that findings from Genie cannot be applied to all children who experience deprivation because every case is unique. Use phrases like ‘This is a strength because…’ and ‘However, a limitation is…’ to structure your answer clearly.
在考试中撰写评价时，一定要用实例支持你的观点。例如，为了说明低可推广性，可以提到吉妮的研究结果不能应用于所有经历剥夺的儿童，因为每个案例都是独特的。使用诸如“这是一个优点，因为……”和“然而，一个局限性是……”这样的短语来清晰地组织你的答案。
8. Ethical Considerations in Case Studies | 案例研究中的伦理考量
Case studies present unique ethical challenges. Maintaining confidentiality and anonymity is extremely difficult because the participant’s life is described in such detail. Even when a pseudonym is used, the person may still be identifiable. Informed consent must be obtained, but in many classic case studies, participants could not give truly informed consent, either because they were children (Little Hans), had cognitive impairments (HM), or were studied without their full understanding.
案例研究带来了独特的伦理挑战。保持保密性和匿名性极其困难，因为参与者的生活被描述得如此详尽。即使使用了化名，当事人仍可能被识别出来。必须获得知情同意，但在许多经典案例研究中，参与者无法给出真正的知情同意，要么因为他们还是儿童（小汉斯），要么有认知障碍（HM），或者是在没有完全理解的情况下被研究。
Protection from harm is another concern. The intense scrutiny of a case study can cause psychological distress. For example, repeatedly probing traumatic memories in someone like Genie could be further damaging. The right to withdraw may be compromised if the participant is a child or an individual who does not fully grasp the research aims. Modern ethical guidelines, such as those from the British Psychological Society, require researchers to prioritise the participant’s welfare above scientific goals.
免受伤害是另一个关注点。案例研究的密集审视可能导致心理痛苦。例如，在吉妮这样的案例中，反复探究创伤记忆可能会造成进一步伤害。如果参与者是儿童或未能完全理解研究目的的个人，退出权利可能会受到损害。现代伦理准则，如英国心理学会的指南，要求研究者将参与者的福祉置于科学目标之上。
When evaluating ethics in an exam, avoid simply stating ‘the study was unethical’. Instead, identify the specific ethical guideline that was breached and explain the consequences. Moreover, discuss how the study could be improved ethically while still gathering valuable data, for example, by using less invasive observation or ensuring a supportive debrief.
在考试中评价伦理时，避免简单地陈述“该研究是不道德的”。相反，应识别被违反的具体伦理准则，并解释其后果。此外，要讨论如何在仍然收集有价值数据的同时，在伦理上改进该研究，例如通过使用侵入性较小的观察或确保提供支持性的解释说明。
9. Practice Scenario: Analysing a Case Study (Little Hans) | 实战演练：分析一个案例研究（小汉斯）
Now let’s apply these skills to a classic case study. Below is a summary of the case of Little Hans, studied by Sigmund Freud. Read the summary carefully and then attempt to answer the questions that follow, as you would in a CAIE exam.
现在让我们将这些技能应用于一个经典案例研究。以下是西格蒙德·弗洛伊德研究的小汉斯案例的摘要。请仔细阅读摘要，然后如同在CAIE考试中一样尝试回答后续问题。
Case Summary: Han, a five-year-old boy, developed a phobia of horses, particularly white horses with black blinkers and blinders. He was afraid a horse would bite him and fall down. His father, a follower of Freud, recorded conversations and dreams. Han’s fear began after witnessing a horse collapse in the street. Through analysis, Freud interpreted the horse as a symbol for his father, whom Han unconsciously feared because of the Oedipus complex. Han’s phobia eventually resolved after he expressed his underlying emotions.
案例摘要： 汉斯，一个五岁男孩，产生了对马的恐惧症，尤其是对戴着眼罩和黑色遮罩的白马。他害怕马会咬他并倒下。他的父亲是弗洛伊德的追随者，记录了谈话和梦境。汉斯的恐惧在目睹一匹马倒在街道上后开始。通过分析，弗洛伊德将马解释为其父亲的象征，由于俄狄浦斯情结，汉斯潜意识里害怕父亲。在表达了潜在情感之后，汉斯的恐惧症最终得以解决。
Task: Use your knowledge of psychology to explain Han’s phobia. (8 marks) Evaluate the case study method used by Freud. (6 marks)
任务： 运用心理学知识解释汉斯的恐惧症。（8分）评价弗洛伊德所使用的案例研究方法。（6分）
Attempt the questions on your own before looking at the model answer in the next section. Think about which concepts to apply and how to balance strengths and limitations in your evaluation.
在查看下一节中的参考答案之前，请先自行尝试回答这些问题。思考应运用哪些概念，以及如何在评价中平衡优点与局限性。
10. Model Answer and Examiner Tips | 参考答案与考官提示
Here is a model answer for the Little Hans practice scenario. Use this to check your own response and understand what examiners are looking for.
以下是关于小汉斯实战演练情境的参考答案。利用它来检查你自己的回答，并了解考官在寻找什么。
Model Answer – Explanation (8 marks): Freud used the psychodynamic approach to explain Han’s phobia. He argued that Han was in the phallic stage of psychosexual development, where the Oedipus complex causes unconscious desires for his mother and jealous rivalry toward his father (Point). Han’s fear of being bitten by a horse symbolised a fear of castration by his father. The horse with blinkers resembled his father’s glasses, and the collapse of the horse represented Han’s unconscious wish for his father to fall down (Evidence from the case). Through defence mechanisms such as displacement, Han’s anxiety was redirected from his father onto a safer object, the horse. The resolution came when Han expressed his feelings, showing the therapeutic value of psychoanalysis (Explanation). This illustrates how unconscious conflicts can shape phobias, though the interpretation is highly subjective (Link to evaluation).
参考答案 – 解释（8分）： 弗洛伊德运用心理动力学取向来解释汉斯的恐惧症。他认为汉斯正处于性心理发展的性器期，此时俄狄浦斯情结导致他对母亲的无意识欲望和对父亲的嫉妒与竞争（观点）。汉斯害怕被马咬象征着对被父亲阉割的恐惧。戴眼罩的马类似于他父亲的眼镜，而马倒下则代表了汉斯无意识中希望父亲倒下的愿望（案例证据）。通过防御机制如置换，汉斯的焦虑从父亲身上转移到了一个更安全的对象——马上。当汉斯表达了他的情感后，问题得到解决，这显示了精神分析的治疗价值（解释）。这说明了无意识冲突如何塑造恐惧症，尽管这种解释具有高度主观性（联系评价）。
Model Answer – Evaluation (6 marks): A key strength is the depth of data gathered through conversations and dream analysis, which provided insights not accessible through experiments. However, a major limitation is that only one boy was studied, so findings cannot be generalised to all children. Researcher bias was significant because Han’s father, a Freudian, recorded and possibly interpreted the data to fit the theory. The study also lacks reliability as the procedures were not standardised and could not be replicated. Furthermore, ethics were compromised: Han could not give informed consent, and the focus on intimate topics may have caused distress. Despite these weaknesses, the case generated further research into childhood anxiety.
参考答案 – 评价（6分）： 一个关键优点是，通过谈话和梦境分析收集的数据深度，提供了实验方法无法获得的洞见。然而，一个主要局限性是仅研究了一名男孩，因此研究结果不能推广到所有儿童。研究者偏见十分显著，因为汉斯的父亲是弗洛伊德学派成员，他记录并可能解释数据以符合理论。这项研究也缺乏信度，因为程序未标准化且无法被复制。此外，伦理上也存在问题：汉斯不能给予知情同意，而聚焦于亲密话题可能造成了困扰。尽管有这些缺点，该案例仍激发了更多关于儿童焦虑的研究。
Examiner tip: Always embed terminology like ‘generalisability’, ‘reliability’ and ‘researcher bias’ naturally into your evaluation. For top marks, avoid lists and instead link each point explicitly to the scenario.
考官提示： 始终将“可推广性”、“信度”和“研究者偏见”等术语自然地嵌入到评价中。为获得高分，要避免罗列清单，而是将每一点明确地与情境联系起来。
11. Common Mistakes to Avoid | 常见错误避免
Even motivated students often lose marks due to avoidable errors. The most common mistake is providing a generic description of a case study without linking it to the specific details in the question. For example, writing ‘case studies provide in-depth data’ without explaining what specific data in the given scenario was in-depth will not earn evaluation marks.
即使有动力的学生也常因一些可避免的错误而失分。最常见的错误是提供一个泛泛的案例研究描述，却没有将其与问题中的具体细节联系起来。例如，写“案例研究提供了深入的数据”却没有解释给定情境中哪些具体数据是深入的，这将无法获得评价分数。
Another error is confusing the case study participant with the researcher. In the Little Hans case, Han is the participant, Freud is the researcher, and Han’s father acted as the observer/recorder. Mixing these roles up shows a lack of understanding. Additionally, many students fail to use the correct psychological terminology or misuse terms like ‘validity’ and ‘reliability’. Validity refers to whether a study measures what it claims to measure, while reliability refers to consistency. Know the difference and apply it accurately.
另一个错误是混淆案例研究的参与者与研究者。在小汉斯的案例中，汉斯是参与者，弗洛伊德是研究者，而汉斯的父亲担任观察者/记录者。搞混这些角色表明缺乏理解。此外，许多学生未能使用正确的心理学术语，或误用像“效度”和“信度”这样的词汇。效度指的是研究是否测量了它声称要测量的东西，而信度指的是一致性。要了解其区别并准确应用。
Avoid one-sided evaluations. Always present at least one strength and one weakness. Finally, do not introduce new studies or theories in the conclusion that you have not already discussed. Stick to the material you have analysed, and keep your conclusion succinct.
避免片面的评价。始终至少提出一个优点和一个缺点。最后，不要在结论中引入之前未讨论过的新的研究或理论。紧扣你已经分析过的材料，并保持结论简洁。
12. Final Summary and Top Tips | 总结与重要技巧
Case study analysis is a core skill for CAIE Year 11 Psychology. To summarise, treat a case study as a unique, in-depth investigation that provides rich data but has limited generalisability. When explaining behaviour, always link theory to the case details using a point-by-point method. When evaluating, offer specific, well-supported points covering strengths, weaknesses and ethical considerations.
案例研究分析是CAIE 11年级心理学的一项核心技能。总结而言，应将案例研究视为一种独特、深入的调查方法，它提供丰富数据，但可推广性有限。在解释行为时，始终采用逐点方法将理论与案例细节联系起来。在进行评价时，提出具体且有充分支持的要点，涵盖优点、缺点和伦理考量。
Here are your top five tips: 1) Practise with as many case studies as possible, including those from the CAIE endorsed textbook. 2) Create flashcards of classic case studies with key facts, applications and evaluations. 3) Time yourself when writing answers to build exam fluency. 4) Use the PEEL structure for every extended paragraph. 5) Read examiner reports to understand what top-level answers look like and avoid common pitfalls.
以下是五大重要技巧：1）尽可能多地练习案例研究，包括来自CAIE认可教材中的那些。2）制作经典案例研究的卡片，包含关键事实、应用和评价。3）在撰写答案时计时，以培养考试流畅性。4）每个扩展段落都使用PEEL结构。5）阅读考官报告，了解顶级答案是什么样的，并避免常见陷阱。
Remember that psychology is about understanding real people. Approach each case study with curiosity and empathy. This mindset will not only help you score higher marks but also make your study of psychology more engaging and meaningful.
请记住，心理学是关于理解真实的人。带着好奇心和同理心对待每个案例研究。这种心态不仅会帮助你获得更高的分数，还会让你的心理学学习更加引人入胜和富有意义。
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