📚 Year 11 WJEC Psychology: Case Study Practical Drills | Year 11 WJEC 心理学：案例分析实战演练
Case studies provide an in-depth, detailed investigation of a single individual, group, or event. For Year 11 WJEC Psychology, mastering the case study method is essential not only to understand key research but also to evaluate how real-world psychological phenomena are examined. This article offers practical drills to sharpen your ability to analyse and evaluate case studies, helping you feel confident when tackling exam questions.
案例研究是对个体、群体或事件进行深入、详细调查的方法。对于 Year 11 WJEC 心理学而言，掌握案例研究法不仅是理解关键研究的必要条件，也是评估现实世界心理现象如何被考察的关键。本文通过实战演练帮助您提升分析和评价案例研究的能力，让您在应对考试问题时充满信心。
1. What Is a Case Study? | 什么是案例研究？
A case study is a research method that involves an intensive examination of a single case, which could be a person, a small group, or an organisation. Unlike experiments that manipulate variables to find cause and effect, case studies gather rich, qualitative data (and sometimes quantitative) to explore complex issues in real-life contexts. In WJEC Psychology, you will encounter famous case studies such as the case of HM or Phineas Gage, which have dramatically shaped our understanding of memory and brain function.
案例研究是一种研究方法，涉及对单个案例（可以是个人、小群体或组织）的深入考察。与通过操纵变量寻找因果关系的实验不同，案例研究收集丰富的定性数据（有时也包括定量数据），以探索现实生活中的复杂问题。在 WJEC 心理学中，您将遇到著名的案例研究，如 HM 或 Phineas Gage 的案例，这些案例极大地塑造了我们对记忆和脑功能的理解。
In a case study, researchers use multiple sources of information such as interviews, observations, psychological tests, and historical records. This triangulation strengthens the validity of the findings. However, because each case is unique, generalisation to the wider population can be a problem — a point you must be ready to discuss in exam evaluations.
在案例研究中，研究者使用多种信息来源，如访谈、观察、心理测试和历史记录。这种三角验证增强了研究结果的有效性。然而，由于每个案例都是独特的，将其推广到更广泛的人群可能会有问题——这是您在考试评价中必须准备讨论的一点。
2. Key Features of Case Studies | 案例研究的主要特征
Case studies share several defining features that set them apart from other research methods. First, they are idiographic, focusing on the unique individual rather than trying to establish universal laws (nomothetic approach). Second, they are longitudinal in many cases, tracking changes over a long period. Third, they produce qualitative data rich in detail, though they can also include quantitative measures such as test scores.
案例研究有几个区别于其他研究方法的典型特征。首先，它们是个案式的，关注独特的个体，而不是试图建立普遍规律（通则式方法）。其次，很多案例研究是纵向的，长期追踪变化。第三，它们产生细节丰富的定性数据，但也可以包括测验分数等定量测量。
Another key feature is the use of multiple methods within one case. For example, in the study of a child with severe neglect, researchers might combine observation, interviews with caregivers, school reports, and cognitive tests. This methodological pluralism makes the case study very flexible but also requires careful planning to keep the process systematic.
另一个关键特征是在一个案例中使用多种方法。例如，在研究一个遭受严重忽视的儿童时，研究者可能结合观察、与照料者访谈、学校报告和认知测验。这种方法论的多元性使案例研究非常灵活，但也需要精心规划以保持过程系统性。
3. Types of Data in Case Studies | 案例研究中的数据类型
Case studies predominantly produce qualitative data, such as written descriptions of behaviour, transcripts of conversations, or personal diary entries. This type of data provides depth and context, allowing researchers to capture the participant’s lived experience. For instance, in Freud’s study of Little Hans, the boy’s fears were recorded through detailed conversations with his father, revealing unconscious conflicts.
案例研究主要产生定性数据，如行为描述、对话转录或个人日记。这类数据提供了深度和背景，使研究者能够捕捉参与者的生活体验。例如，在弗洛伊德的小汉斯研究中，通过与父亲的详细对话记录了男孩的恐惧，揭示了无意识冲突。
However, many case studies also incorporate quantitative data — numbers that can be compared or plotted. In the famous case of HM, who suffered severe memory loss after brain surgery, his ability to learn new motor skills was measured by the number of correct tracing tasks over time. This combination of data types strengthens the overall picture, but you must be critical: qualitative data is subjective and prone to interpretation bias.
然而，许多案例研究也结合了定量数据——可以比较或绘图的数字。在著名的 HM 案例中，患者脑部手术后严重失忆，但他学习新运动技能的能力被通过随时间推移正确追踪任务的次数来衡量。这种数据类型的结合增强了整体图景，但您必须持批判态度：定性数据是主观的，容易受到解释偏差的影响。
4. Designing and Conducting a Case Study | 案例研究的设计与实施
When planning a case study, the researcher must first define the ‘case’ clearly. Will it be an individual, a school, or a specific event? Next, they formulate research questions that guide data collection. For example, ‘How does a brain injury affect memory and personality?’ Then they select suitable sources of data. A crucial step is to obtain informed consent — but in some historical case studies, this was not obtained, raising ethical questions you can use in evaluation.
设计案例研究时，研究者必须首先明确“案例”是什么。是个体、学校还是特定事件？接下来，他们制定引导数据收集的研究问题。例如，“脑损伤如何影响记忆和人格？”然后选择合适的数据来源。关键步骤是获得知情同意——但在一些历史案例研究中，并未获得同意，这引发了伦理问题，您可以在评价时使用。
Data collection often involves recording naturalistic behaviour through observation, conducting interviews (structured, semi-structured, or unstructured), and examining documents or archival records. In a school-based case study of bullying, a psychologist might observe playground interactions, interview the victim and teachers, and analyse incident logs. The researcher must remain reflexive — reflecting on how their own presence might affect the case.
数据收集通常包括通过观察记录自然行为、进行访谈（结构化、半结构化或非结构化），以及审查文档或档案记录。针对校园欺凌的案例研究，心理学家可能观察操场互动、访谈受害者和教师，并分析事件记录。研究者必须保持反思——思考自身存在如何影响案例。
5. Analysing Case Study Data | 分析案例研究数据
Analysing qualitative data from case studies often follows thematic analysis, where the researcher identifies recurring patterns or themes. For example, in the case of Genie, a girl raised in isolation, themes of ‘language deprivation’ and ‘developmental plasticity’ emerged from the transcriptions of her speech therapy sessions.
分析案例研究中的定性数据通常遵循主题分析，研究者识别反复出现的模式或主题。例如，在 Genie 的案例中，从她的言语治疗课程转录中出现了“语言剥夺”和“发展可塑性”等主题。
Quantitative data might be presented in tables or simple graphs. Below is an example of how to visualise a single-case data trend:
定量数据可以用表格或简单图表呈现。下面是一个如何可视化单个案例数据趋势的示例：
| Time Point | Anxiety Score (0–100) |
|---|---|
| Pre-therapy | 85 |
| Week 4 | 62 |
| Week 12 | 40 |
Always remember that in a case study, any observed change may be due to factors other than the intervention, such as maturation or external support, because there is no control group.
请始终记住，在案例研究中，任何观察到的变化都可能由干预之外的因素引起，如成熟或外部支持，因为没有对照组。
6. Strengths of Case Studies | 案例研究的优点
One of the greatest strengths of case studies is the depth and richness of the data they produce. Because the researcher delves into the life of the participant, they can uncover nuances that would be missed in a lab experiment. This makes case studies particularly useful for studying rare or unusual phenomena, such as unique brain damage or feral children.
案例研究最大的优点之一是它们产生的数据具有深度和丰富性。由于研究者深入参与者的生活，他们可以发现实验室实验中会错过的细微差别。这使得案例研究特别适用于研究罕见或不寻常的现象，如独特的脑损伤或野孩子。
Case studies also allow for the holistic understanding of the person in their real environment. They often provide the starting point for new theories and hypotheses. For example, the case of Phineas Gage, who survived an iron rod through his frontal lobe, fundamentally changed the view of the brain’s role in personality. In WJEC exam questions, you should always link strengths to specific examples.
案例研究还能让人全面理解现实环境中的人。它们通常为新理论和假说提供起点。例如，Phineas Gage 的案例（一根铁棍穿透了他的额叶而他存活下来）从根本上改变了人们对大脑在人格中作用的看法。在 WJEC 考试问题中，您应始终将优点与具体示例联系起来。
7. Limitations of Case Studies | 案例研究的局限性
Despite their depth, case studies suffer from low generalisability. The findings from one unique individual cannot be easily applied to others. For example, HM’s amnesia gave valuable insights into memory systems, but can we assume everyone’s memory works in exactly the same way? This is a critical evaluation point: the sample size is one.
尽管案例研究有深度，但它们存在推广性低的问题。一个独特个体的发现不能轻易应用于他人。例如，HM 的遗忘症为记忆系统提供了宝贵见解，但我们能假设每个人的记忆都以完全相同的方式工作吗？这是一个关键的评价点：样本量为 1。
Another limitation is researcher bias. In a case study, the investigator may become too involved, losing objectivity. Freud’s interpretation of Little Hans has been criticised for fitting the boy’s behaviour into pre-existing psychoanalytic theories rather than letting the data speak for itself. Also, establishing cause and effect is very difficult because there is no manipulation of an independent variable; it is a correlational relationship at best.
另一个局限性是研究者偏见。在案例研究中，研究者可能介入过深，丧失客观性。弗洛伊德对小汉斯的解释被批评为将男孩的行为套入已有的精神分析理论，而非让数据自己说话。而且，由于没有操纵自变量，建立因果关系非常困难；最多只能是相关关系。
8. Ethical Considerations in Case Studies | 案例研究中的伦理考量
Long-term, intimate case studies raise significant ethical issues. Confidentiality is paramount — participants are often given pseudonyms, like ‘Genie’ or ‘HM’, to protect their identity. However, the detailed nature of the report can sometimes make the person identifiable, especially if the case is famous. You must weigh the benefits of revealing knowledge against the right to privacy.
长期而亲密的案例研究引发了重大的伦理问题。保密性至关重要——参与者通常被赋予化名，如“Genie”或“HM”，以保护其身份。然而，报告的详细特性有时会使人可被认出，尤其是著名案例。您必须权衡揭示知识的好处与隐私权。
Another concern is protection from harm. In some historical cases, researchers may have prioritised data collection over the well-being of the participant. For instance, in the case of David Reimer (the boy raised as a girl after a botched circumcision), the psychological damage was profound. When evaluating case studies in the exam, always comment on whether ethical guidelines were followed, using terms like informed consent, right to withdraw, and debriefing.
另一个关注点是免受伤害。在一些历史案例中，研究者可能将数据收集置于参与者的福祉之上。例如，在 David Reimer 的案例（割礼事故后一个男孩被当作女孩抚养）中，心理伤害是深重的。在考试中评价案例研究时，始终要评论是否遵循了伦理准则，使用知情同意、退出权和事后解释等术语。
9. Practical Drill: Analysing a Classic Case – Phineas Gage | 实战演练：分析经典案例——菲尼亚斯·盖奇
Let us apply our knowledge by breaking down a real case study that appears frequently in WJEC exams. Phineas Gage was a 25-year-old railroad worker who, in 1848, survived an explosion that drove an iron rod through his left cheek and out of the top of his skull, damaging his frontal lobe. Remarkably, he was conscious shortly after and lived for another 12 years.
让我们通过拆解一个经常在 WJEC 考试中出现的真实案例研究来应用知识。菲尼亚斯·盖奇是一名 25 岁的铁路工人，在 1848 年的一次爆炸中幸存，一根铁棍从他的左脸颊穿入，从颅骨顶部穿出，损伤了他的额叶。值得注意的是，他事后不久便恢复意识，并又活了 12 年。
Dr. John Harlow documented the changes in Gage: before the accident, he was responsible and hardworking; afterwards, he became impulsive, profane, and unable to hold a job. This single case provided evidence that the frontal lobes are involved in personality and self-regulation. When analysing this case, consider the method: it used naturalistic observation and interviews with friends and employers — thus qualitative data.
约翰·哈洛医生记录了盖奇的变化：事故之前，他负责且勤奋；之后，他变得冲动、粗俗不堪，无法保住工作。这个单一案例提供了证据，表明额叶参与人格和自我调节。分析此案例时，应考虑方法：它使用了自然观察和与朋友及雇主的访谈——因此是定性数据。
For your evaluation, highlight that while the case was groundbreaking, it lacks generalisability (one person), reliability (cannot be replicated), and control over extraneous variables (the exact damage varied). Also comment on ethics — no consent could be obtained as it was an emergency, but Harlow’s follow-up respected Gage’s dignity. This is exactly the type of balanced argument an examiner expects.
在您的评价中，应强调虽然该案例具有开创性，但缺乏推广性（一个人）、可靠性（无法复制），且对外部变量的控制不足（具体损伤程度不一）。还要评论伦理——由于是紧急情况，无法获得同意，但哈洛的后续工作尊重了盖奇的尊严。这正是考官期望的平衡论点类型。
10. Practical Drill: Answering Exam Questions on Case Studies | 实战演练：回答案例研究考试题目
WJEC exam questions on case studies often ask you to ‘Evaluate the use of case studies as a research method’ or ‘Discuss the strengths and weaknesses of the case study approach using examples’. A strong answer follows the PEEL structure: Point, Evidence, Explanation, Link (in evaluation, the ‘Link’ often connects to the broader debate about usefulness or ethicality).
WJEC 关于案例研究的考题常常要求“评价案例研究作为研究方法的运用”或“使用实例讨论案例研究方法的优缺点”。一个强有力的回答应遵循 PEEL 结构：观点、证据、解释、链接（在评价中，“链接”通常关联到关于实用性或伦理性更广泛的辩论）。
Below is a sample paragraph structure you can practice:
以下是一个您可以练习的段落结构示例：
- Point: One strength of case studies is that they provide rich, detailed insight into complex psychological phenomena.
- Evidence: For instance, the case of HM revealed that memory consists of different stores, such as procedural and declarative memory, which experiments could not have uncovered so vividly.
- Explanation: This demonstrates how in-depth study of an individual can reveal mechanisms that might be lost in average group data, thereby advancing psychological theory.
- Link: However, such detail must be weighed against the risk of researcher bias and the difficulty of generalising from a single case.
（中文段落供理解，但在实际回答时通常用英文，这里给出对等训练）
- 观点：案例研究的一个优点是它们提供了对复杂心理现象的丰富、详细洞察。
- 证据：例如，HM 的案例揭示了记忆由不同存储组成，如程序性记忆和陈述性记忆，这是实验无法如此生动地揭示的。
- 解释：这展示了对个体的深入研究如何揭示可能在平均组数据中丢失的机制，从而推进心理学理论。
- 链接：然而，这种细节必须与研究者偏见的风险和从单个案例推广的困难进行权衡。
Practise writing full answers under timed conditions. Remember to include key terminology like ‘idiographic’, ‘triangulation’, and ‘longitudinal’ to show your knowledge.
在限时条件下练习写出完整答案。记住要包含关键术语，如“个案式的”、“三角验证”和“纵向的”，以展示您的知识。
11. Comparing Case Studies with Other Methods | 案例研究与其他方法的比较
To ace the evaluation questions, you must be able to compare the case study method with others such as experiments, observations, or interviews. Below is a quick comparison table:
要在评价题中取胜，您必须能够将案例研究法与其他方法（如实验、观察或访谈）进行比较。下面是一个快速比较表：
| Method | Strengths | Weaknesses |
|---|---|---|
| Case Study | In-depth, holistic, useful for rare phenomena | Low generalisability, risk of bias, low internal validity |
| Lab Experiment | High control, cause-and-effect, replicable | Artificial, low ecological validity, demand characteristics |
| Naturalistic Observation | High ecological validity, no manipulation | Observer effect, ethical issues if undisclosed |
When writing comparisons, use connective phrases like ‘In contrast to case studies, laboratory experiments …’ or ‘Unlike naturalistic observation, case studies allow for …’. This demonstrates higher-order thinking.
在撰写比较时，使用连接短语如“与案例研究相反，实验室实验……”或“与自然观察不同，案例研究允许……”。这展示了高阶思维。
12. Summary and Exam Tips | 总结与考试建议
Case studies are a powerful, flexible method that brings psychological theories to life through the detailed lens of individual experience. For the WJEC Year 11 exam, your success depends on being able to define the method clearly, describe how it is conducted, and critically evaluate its strengths and weaknesses with well-chosen examples. Never simply list points — always link back to research evidence.
案例研究是一种强大而灵活的方法，通过个体经验的详细镜头将心理学理论带入生活。对于 WJEC Year 11 考试，您的成功取决于能否清晰地定义该方法，描述它如何实施，并用恰当的例子批判性地评价其优缺点。永远不要简单罗列观点——始终要与研究证据联系起来。
During revision, create flashcards with key cases (HM, Genie, Phineas Gage, Little Hans) and note the method, data type, and a key evaluation point for each. Practise writing PEEL paragraphs under timed conditions. Finally, remember that examiners reward reference to ethical considerations, so always ask yourself: ‘Were participants respected? Were their identities protected?’ By internalising these practical drills, you will walk into the exam hall fully prepared.
在复习期间，制作关键案例（HM、Genie、菲尼亚斯·盖奇、小汉斯）的抽认卡，并为每个案例注明方法、数据类型和关键评价点。在限时条件下练习书写 PEEL 段落。最后，请记住考官会奖励提到伦理考量，所以要经常问自己：“参与者是否受到尊重？他们的身份是否得到了保护？”通过内化这些实战演练，您将充分准备好走进考场。
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