KS3 Edexcel Psychology: Case Study Practice Drills | KS3 Edexcel 心理学：案例分析实战演练

📚 KS3 Edexcel Psychology: Case Study Practice Drills | KS3 Edexcel 心理学：案例分析实战演练

Welcome to your ultimate revision guide for case study skills in KS3 Edexcel Psychology. Case studies appear frequently in your assessments, not as long essays, but as short scenarios requiring you to apply ethical, methodological and evaluative thinking. This article will walk you through everything you need to know and then give you two full practice drills so you can test your understanding before the exam.

欢迎来到 KS3 Edexcel 心理学案例分析技能的终极复习指南。案例研究经常出现在你的评估中，不是作为长篇论文，而是作为简短情景，要求你运用伦理、方法和评估思维。本文将带你了解所有必要知识，并为你提供两个完整的实战演练，让你可以在考试前检验自己的理解。

1. What is a Case Study? | 什么是案例研究？

A case study is an in-depth investigation of a single individual, group or event. Psychologists use it to gather rich, detailed information that might be missed by larger surveys or experiments. Instead of studying hundreds of people, the researcher focuses closely on one unique case to uncover patterns of behaviour, thought or emotion.

案例研究是对单个个体、群体或事件的深入调查。心理学家利用它来收集丰富、详细的信息，这些信息可能是大规模调查或实验所遗漏的。研究者不是研究数百人，而是紧密聚焦于一个独特的案例，以揭示行为、思维或情感的模式。

In KS3 Edexcel Psychology, you are not expected to design a case study, but you must be able to read a short description of a case and answer questions about its strengths, weaknesses and ethical issues.

在 KS3 Edexcel 心理学中，不要求你设计案例研究，但你必须能够阅读一段简短案例描述，并回答关于其优势、劣势和伦理问题的问题。

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2. Key Features of Case Studies | 案例研究的关键特征

Case studies are distinctive because they use multiple sources of data. A researcher might combine interviews with the participant, observations, questionnaires given to family members, and even school or medical records. This is called triangulation – using different methods to build a complete picture. Another feature is that they often take place over a long period, which is known as a longitudinal design. Finally, case studies usually focus on rare or unusual circumstances that cannot be recreated in a laboratory.

案例研究的独特之处在于它们使用多种数据来源。研究者可能结合对参与者的访谈、观察、发给家人的问卷，甚至学校或医疗记录。这称为三角验证——使用不同方法来构建完整画面。另一个特征是它们通常在很长一段时间内进行，即纵向设计。最后，案例研究通常关注实验室无法重现的罕见或不寻常情况。

You should remember these keywords: in-depth, longitudinal, triangulation and unique case. They often form the basis of exam questions asking ‘Describe two features of a case study.’

你应该记住这些关键词：深入、纵向、三角验证和独特案例。它们常常构成考试问题的基础，如“描述案例研究的两个特征”。

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3. The Story of Phineas Gage | 菲尼亚斯·盖奇的故事

One of the most famous case studies in psychology involved Phineas Gage, a railway worker who in 1848 survived an accident where a large iron rod shot through his skull, damaging his frontal lobes. Before the accident, Gage was described as polite, responsible and hard-working. After the accident, his personality changed dramatically: he became rude, impulsive and unable to plan for the future. However, his memory and intelligence remained intact.

心理学中最著名的案例研究之一涉及菲尼亚斯·盖奇，一位铁路工人，他在 1848 年的一次事故中幸存下来，一根大铁棒射穿了他的头骨，损伤了他的额叶。事故发生前，盖奇被描述为有礼貌、负责且勤奋。事故后，他的性格发生了巨大变化：他变得粗鲁、冲动，无法规划未来。然而，他的记忆力和智力仍然完好。

This case provided early evidence that certain parts of the brain are linked to personality and impulse control. In an exam, you might be asked to explain what Gage’s case tells us about the brain. The answer: it suggests the frontal lobes play a key role in regulating behaviour and personality.

这个案例提供了早期证据，表明大脑的某些部分与人格和冲动控制有关。在考试中，你可能会被要求解释盖奇的案例告诉我们关于大脑的什么信息。答案是：它表明额叶在调节行为和人格方面起着关键作用。

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4. Ethical Issues in Case Studies | 案例研究中的伦理问题

Case studies can raise serious ethical concerns. Because the research often focuses on vulnerable individuals – such as children, people with brain injuries or those in distressing situations – informed consent becomes crucial. In many classic cases, such as those we will study in our practice drills, the real names of participants were revealed without proper consent, breaking the ethical rule of confidentiality.

案例研究可能引发严重的伦理问题。由于研究时常聚焦于弱势个体——例如儿童、脑损伤患者或处于痛苦境地的人——知情同意变得至关重要。在许多经典案例中，正如我们将在实战演练中学习的，参与者的真实姓名在未经恰当同意的情况下被公开，违反了保密性的伦理规则。

Another issue is protection from harm. If a study causes long-term psychological distress, it is considered unethical even if the findings are valuable. When you answer ethics questions, always use the terms: informed consent, confidentiality, right to withdraw and protection from harm.

另一个问题是保护免受伤害。如果研究导致长期心理痛苦，即使发现很有价值，也被认为是不道德的。当你回答伦理问题时，始终使用这些术语：知情同意、保密、退出权和保护免受伤害。

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5. Strengths of Case Study Research | 案例研究的优势

The greatest strength of a case study is the richness of detail. Because researchers spend a long time with one participant, they can uncover insights that would be invisible in a questionnaire or a brief experiment. This depth makes case studies excellent for generating new hypotheses. They also allow the study of rare phenomena – such as brain injuries or extreme isolation – where it would be impossible or unethical to manipulate variables in an experiment.

案例研究最大的优势是细节的丰富性。由于研究者与一个参与者相处很长时间，他们可以发现那些在问卷或简短实验中看不到的见解。这种深度使得案例研究非常适合产生新的假设。它们还允许研究罕见现象——如脑损伤或极端孤立——在这些情况下，在实验中操纵变量是不可能的或不道德的。

In short, case studies provide a holistic, real-world understanding of behaviour that other methods lack. For an exam answer, you might say: ‘Case studies offer high ecological validity because the data comes from a natural setting, not an artificial lab.’

简而言之，案例研究提供了其他方法所缺乏的对行为的整体性、真实世界的理解。对于考试答案，你可以说：“案例研究具有高生态效度，因为数据来自自然环境，而不是人造实验室。”

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6. Limitations of Case Studies | 案例研究的局限性

Despite their depth, case studies have clear weaknesses. First, they are extremely difficult to generalise. Because they focus on one unique individual, we cannot be sure the findings apply to other people. The case of Phineas Gage tells us about one man’s brain, but every brain is different. Second, case studies rely heavily on the researcher’s interpretation, which can lead to subjective bias. The researcher may only notice evidence that supports their expectations.

尽管案例研究有深度，但它们有明显的弱点。首先，它们极难推广。因为它们聚焦于一个独特的个体，我们不能确定这些发现适用于其他人。菲尼亚斯·盖奇的案例告诉我们的只是一个男人的大脑，但每个大脑都不同。其次，案例研究高度依赖研究者的解释，这可能导致主观偏差。研究者可能只注意到支持他们预期的证据。

Another problem is that many case studies use retrospective data – asking people to recall past events – and memory can be inaccurate. Examiners often want you to contrast these limitations with the strengths mentioned earlier. Always mention that cause-and-effect relationships are difficult to establish from a single case.

另一个问题是，许多案例研究使用回顾性数据——要求人们回忆过去的事件——而记忆可能不准确。考官常常希望你将这些局限性与前面提到的优势进行对比。永远要提到从单一案例中很难建立因果关系。

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7. How to Approach a Case Study Question | 如何应对案例研究问题

In your KS3 Edexcel exam, a typical scenario will describe a case in a few sentences. Then you will see questions like: ‘Identify one ethical issue in this study.’ or ‘Explain one strength of using a case study in this situation.’ The key is to link your knowledge to the details given. Do not give a generic answer – always refer to the specific case.

在 KS3 爱德思考试中，一个典型的情景会用几句话描述一个案例。然后你会看到类似这样的问题：“指出这项研究中的一个伦理问题。”或“解释在这种情况下使用案例研究的一个优势。”关键是要将你的知识与给出的细节联系起来。不要给出笼统的答案——总是要提及具体案例。

A good technique is to underline the command word: identify, describe, explain or evaluate. Then underline any clues about the method. For example, if the text says ‘the psychologist interviewed her every week for two years’, you can spot that it is a longitudinal case study and write about rich detail and triangulation.

一个好的技巧是划出指令词：识别、描述、解释或评价。然后划出关于方法的任何线索。例如，如果文本说“心理学家每周采访她一次，持续了两年”，你可以识别出这是一个纵向案例研究，并写出关于丰富细节和三角验证的内容。

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8. Practice Drill 1: The Case of Little Albert | 实战演练1：小阿尔伯特案例

Read the summary below and then try to answer the questions that follow. John B. Watson and Rosalie Rayner (1920) conducted a study on a baby known as ‘Little Albert’. When Albert was about 9 months old, they showed him a white rat. Initially, Albert showed no fear. Then, every time Albert reached for the rat, the researchers struck a steel bar with a hammer behind his head, producing a loud, frightening noise. After several pairings, Albert began to cry and show distress at the sight of the rat alone. The fear also generalised to other furry objects like a rabbit and a Santa Claus mask. Albert’s mother removed him from the study before the researchers could reverse the fear, and his true identity was later debated.

阅读以下摘要，然后尝试回答后面的问题。约翰·B·华生和罗莎莉·雷纳（1920 年）对一个被称为“小阿尔伯特”的婴儿进行了一项研究。阿尔伯特大约 9 个月大时，他们给他看一只白鼠。起初，阿尔伯特没有表现出恐惧。然后，每当阿尔伯特伸手去抓老鼠时，研究者就在他头后用锤子敲击一根钢条，发出响亮的、吓人的声音。经过几次配对后，阿尔伯特开始一看到老鼠就哭泣并表现出痛苦。恐惧还泛化到其他毛茸茸的物体，如兔子和圣诞老人面具。阿尔伯特的母亲在研究者能够逆转恐惧之前就将他带离了研究，后来他的真实身份引起了争议。

Question 1 (Identify): Identify one ethical issue in the Little Albert study.
Model answer: One ethical issue is the lack of protection from harm. Albert was deliberately made to feel fear, and he left the study while still afraid, which could have caused long-term psychological distress.

问题 1（识别）：指出小阿尔伯特研究中的一个伦理问题。
标准答案：一个伦理问题是缺乏免受伤害的保护。阿尔伯特被故意制造出恐惧感，并且他在仍然害怕的情况下离开了研究，这可能导致长期的心理痛苦。

Question 2 (Explain): Explain one strength of using a case study approach in this research.
Model answer: A strength is the in-depth detail. The researchers could carefully document Albert’s reactions over several sessions, showing exactly how the fear developed step by step. This rich data would not be possible if they had tested many children at once with a quick questionnaire.

问题 2（解释）：解释在这项研究中使用案例研究方法的一个优势。
标准答案：一个优势是深入细节。研究者可以仔细记录阿尔伯特在多次会面中的反应，准确展示恐惧是如何一步步发展的。如果他们用一份快速问卷一次性测试许多孩子，就不可能获得这么丰富的数据。

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9. Practice Drill 2: Genie the ‘Wild Child’ | 实战演练2：“野孩子”吉妮

Genie was a girl discovered in California in 1970, at the age of 13. From the time she was around 20 months old, she had been locked in a room by her father and isolated from almost all human contact. When found, she could not speak, walk properly or chew solid food. Psychologists worked intensively with Genie to study whether she could acquire language after the critical period. She learned some words but never mastered grammar. The case raised serious ethical debates because the team of researchers became very close to her, and some argued that the research overrode her need for stable care. She was eventually moved to foster homes and lost contact with many of the researchers.

吉妮是 1970 年在加利福尼亚被发现的一个女孩，当时她 13 岁。从她大约 20 个月大时起，她就被父亲锁在一个房间里，几乎与所有人类接触隔绝。被发现时，她不会说话，不能正常行走，也不会咀嚼固体食物。心理学家对吉妮进行了集中研究，以探究她是否能在关键期后习得语言。她学会了一些词语，但从未掌握语法。这个案例引发了严重的伦理辩论，因为研究团队与她变得非常亲近，一些人认为研究凌驾于她对稳定关怀的需求之上。她最终被转移到寄养家庭，并与许多研究者失去了联系。

Question 3 (Evaluate): Evaluate the use of the case study method in Genie’s situation. Discuss both strengths and limitations.
Model answer: A strength is that Genie’s case provided unique insight into the effects of extreme deprivation on language development, which could never be tested experimentally for ethical reasons. The longitudinal observation allowed psychologists to document her progress in detail. However, there are major limitations. The findings cannot be generalised because it is just one case – we do not know if other children would respond the same way. Subjectivity was also a problem: researchers may have interpreted her attempts at communication in a way that supported their own theories. Furthermore, ethical issues were severe, including lack of informed consent and conflict between the researcher role and caregiver role, which could have caused further harm.

问题 3（评价）：评价在吉妮的情况下使用案例研究方法的优缺点。
标准答案：优势在于，吉妮的案例为极端剥夺对语言发展的影响提供了独特的见解，而由于伦理原因，这永远无法通过实验来测试。纵向观察使心理学家能够详细记录她的进展。然而，存在重大局限性。结果不能推广，因为这只是一个个案——我们不知道其他孩子是否会以同样的方式回应。主观性也是一个问题：研究者可能以支持自己理论的方式解释她试图沟通的行为。此外，伦理问题很严重，包括缺乏知情同意以及研究者角色与照顾者角色之间的冲突，这可能导致进一步的伤害。

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10. Mark Scheme Insights: What Examiners Look For | 评分标准解析：考官在找什么

When marking case study questions, Edexcel examiners look for precise use of psychological terms. If you are asked to identify an ethical issue, simply writing ‘it was bad’ scores zero. You need to name the issue, such as ‘lack of informed consent’, and then briefly apply it to the scenario. For higher marks, you must elaborate: say why it is an ethical problem in that particular situation. Using the structure ‘Point, Evidence, Explain’ works very well.

批改案例研究问题时，爱德思考官寻找的是心理学专业术语的精确使用。如果让你识别一个伦理问题，只写“这不好”是零分。你需要说出问题的名称，比如“缺乏知情同意”，然后简要地应用到情景中。为了获得更高分数，你必须详细阐述：说明为什么在那个特定情况下它是一个伦理问题。使用“观点、证据、解释”的结构非常有效。

Additionally, when evaluating, you must include both sides. Do not just list strengths; you also need weaknesses. A common phrase used by candidates that gains credit is: ‘However, a weakness is that case study findings may lack population validity because the sample is so small.’

此外，在进行评价时，你必须包括两个方面。不要只列出优势；你还需要劣势。考生经常使用且能得分的一个短语是：“然而，一个弱点是，案例研究的发现可能缺乏人口效度，因为样本太小。”

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11. Common Mistakes to Avoid | 常见错误避免

One frequent error is confusing a case study with an experiment. Both can have participants and take place in an environment, but a case study does not manipulate an independent variable in the same controlled way. Another mistake is giving an ethical evaluation that does not match the method. For example, saying ‘the participants could have lied on a questionnaire’ – this is more relevant to surveys, not in-depth case studies. Also, many students forget to mention the longitudinal aspect. If a case study spans years, always mention that this provides richer data but risks participant dropout.

一个常见错误是混淆案例研究与实验。两者都可以有参与者并在某种环境中进行，但案例研究不以同样受控的方式操纵自变量。另一个错误是给出的伦理评价与方法不匹配。例如，说“参与者可能在问卷上撒谎”——这更适用于调查，而非深入的案例研究。还有，许多学生忘记了提及纵向方面。如果一个案例研究跨越多年，一定要提到这提供了更丰富的数据，但存在参与者退出的风险。

Finally, do not confuse confidentiality with anonymity. Anonymity means no one knows who took part; confidentiality means data is kept secure and identities are not revealed. In many old case studies, confidentiality was broken, which is exactly the ethical issue you need to spot.

最后，不要混淆保密性与匿名性。匿名意味着没有人知道谁参加了；保密意味着数据安全保存，身份不被公开。在许多旧的案例研究中，保密性被破坏，这正是你需要辨认的伦理问题。

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12. Summary and Top Tips | 总结和最佳建议

Case studies are a powerful but limited tool. They give us deep insight into rare conditions and help generate theories, but we must always be cautious about generalising from a single person. For your KS3 Edexcel Psychology exam, remember these top tips: always define the method if you are asked ‘What is a case study?’; link every strength or weakness to a concrete example from the scenario; and treat ethics as a separate, important point that can appear in almost any question.

案例研究是一种强大但有局限的工具。它们让我们深入了解罕见情况并帮助产生理论，但我们必须始终谨慎地从单个人身上进行推广。对于你的 KS3 爱德思心理学考试，请记住这些最佳建议：如果被问到“什么是案例研究？”，始终定义该方法；将每个优势或弱项与情景中的具体例子联系起来；把伦理当作一个独立的、重要的点，它可以出现在几乎任何问题中。

Now you have practised with Little Albert and Genie, try creating your own mini case study based on a story you have heard in the news and ask a friend to analyse it. Active practice is the best way to prepare. Good luck!

现在你已经练习了小阿尔伯特和吉妮的案例，尝试根据你在新闻中听到的故事创建自己的小型案例研究，并请一位朋友进行分析。积极练习是最好的准备方式。祝你好运！

Published by TutorHao | Psychology Revision Series | aleveler.com

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