📚 Case Study Practice in Year 7 Cambridge Psychology | 案例分析实战演练
Welcome to this practise session on psychological case studies. In Year 7 Cambridge Psychology, you will learn how psychologists use the case study method to explore behaviour in depth. A case study involves detailed investigation into the life, experiences and behaviour of an individual or a small group. By working through real-life scenarios, you can sharpen your analytical skills and apply psychological concepts. This article will guide you step by step through a classic case, then offer you a chance to try your own analysis.
欢迎来到心理学案例研究的实战演练。在剑桥七年级心理学课程中，你将学习心理学家如何运用案例研究法深入探索行为。案例研究是对个人或小群体的生活、经历和行为进行详尽调查的方法。通过分析真实情境，你可以磨砺分析能力并应用心理学概念。本文将一步步带你分析一个经典案例，然后让你亲自尝试分析。
1. What is a Case Study? | 什么是案例研究？
In psychology, a case study focuses on a single individual or a small group in great detail.
在心理学中，案例研究集中关注单一个体或小群体，进行极为细致的分析。
It uses multiple sources of information such as interviews, questionnaires, observation and medical records.
它使用多种信息源，如访谈、问卷、观察和医疗记录。
Because the data is in-depth, case studies are especially useful for studying rare or unusual behaviours.
由于数据深入，案例研究对于研究罕见或异常行为特别有用。
However, findings from a case study may not apply to everyone, so generalisation can be limited.
然而，案例研究的发现可能不适用于所有人，因此推广性可能有限。
Case studies also rely heavily on the researcher’s interpretation, which can introduce subjectivity.
案例研究还严重依赖研究者的解释，这可能引入主观性。
2. Meet Tom – The Case | 认识汤姆——案例呈现
Tom is a 10-year-old boy who has developed an intense fear of dogs. He lives with his parents and older sister. Up until six months ago, Tom was happy to play in the park and would sometimes stroke friendly dogs.
汤姆是一个十岁男孩，对狗产生了强烈的恐惧。他与父母和姐姐同住。直到半年前，汤姆还乐意在公园玩耍，有时会抚摸友善的狗。
One afternoon, while walking home alone, a large dog jumped over a fence and barked aggressively at him. The dog chased him until he reached his front door. Although he was not bitten, Tom felt terrified and his heart pounded. After this incident, Tom began avoiding dogs. He refuses to walk past houses where he knows dogs live, and even seeing a picture of a dog in a book makes him anxious.
一天下午，汤姆独自步行回家时，一只大狗跳过栅栏，朝他狂吠。狗追着他直到他跑进家门。尽管没有被咬，汤姆感到极度恐惧，心脏狂跳。事件之后，汤姆开始回避狗。他拒绝经过他知道养狗的房屋，甚至在书中看到狗的图片都会感到焦虑。
3. Gathering Background Information | 收集背景信息
To understand Tom’s fear, a psychologist gathers background information from his parents and school records. Before the incident, Tom had no history of anxiety. He was described as a cheerful, active child. His mother reports that Tom now has trouble sleeping and often asks to check if the street is clear of dogs before going out.
为了了解汤姆的恐惧，心理学家从他的父母和学校记录中收集背景信息。在事件之前，汤姆没有焦虑史。他被描述为开朗、活泼的孩子。他母亲报告说，汤姆现在难以入睡，经常要求在出门前确认街道上没有狗。
The school counsellor noticed that during a lesson on pets, Tom became visibly distressed and asked to leave the room. His academic performance has not dropped, but his teachers note he is less willing to participate in group activities that involve outdoor trips.
学校辅导员注意到，在一次关于宠物的课上，汤姆明显感到不安，要求离开教室。他的学业成绩没有下降，但老师们注意到他不太愿意参加涉及户外郊游的团体活动。
4. Observing Behaviour | 观察行为
A psychologist might observe Tom in different settings. In a controlled playroom with toys including a stuffed dog, Tom initially avoided that area. When the toy was placed near him, his hands trembled and he moved his chair back. At home, the psychologist witnessed Tom refuse to go into the garden after hearing a neighbour’s dog bark.
心理学家可能在不同环境中观察汤姆。在一个有玩具的控制室中，包括一个毛绒狗，汤姆起初避开那个区域。当玩具被放到他附近时，他的手在颤抖，他把椅子往后移。在家里，心理学家目睹汤姆在听到邻居的狗叫后拒绝到花园去。
These observations suggest that the fear has generalised from the original stimulus (the aggressive dog) to other dog-related cues, including toys and sounds.
这些观察表明，恐惧已经从原始刺激（那只攻击性的狗）泛化到其他与狗相关的线索，包括玩具和声音。
5. Interview Data | 访谈数据
During a semi-structured interview, Tom described the chasing event in vivid detail. He said, ‘I thought the dog was going to bite me. My legs felt weak and I couldn’t breathe properly.’ He also stated, ‘I don’t know why I’m still scared, because I know not all dogs are mean, but my body just panics.’
在一次半结构化访谈中，汤姆详细描述了被追逐的事件。他说：“我以为那狗要咬我。我的腿发软，喘不过气。”他还说：“我不知道为什么我仍然害怕，因为我知道不是所有狗都凶，但我的身体就是会恐慌。”
His mother added that she had tried to comfort Tom by explaining that dogs can be friendly, but this did not reduce his fear. The interview data helps the psychologist understand that the fear is not purely rational and has strong emotional and physical components.
他的母亲补充说，她曾试图通过解释狗可以很友好来安慰汤姆，但这并没有减轻他的恐惧。访谈数据有助于心理学家理解，这种恐惧并非纯粹理性，具有强烈的情感和身体成分。
6. Applying Psychological Concepts | 应用心理学概念
This case can be explained by classical conditioning, a concept from the behaviourist approach. Before the incident, the dog (neutral stimulus) produced no fear. The frightening chase (unconditioned stimulus) triggered a natural fear response (unconditioned response). After being paired with the chase, the dog became a conditioned stimulus that now produces a conditioned fear response.
这个案例可以用行为主义方法中的经典条件反射来解释。在事件之前，狗（中性刺激）不会引起恐惧。可怕的追逐（非条件刺激）引发了自然的恐惧反应（非条件反应）。经过与追逐的联结后，狗变成了条件刺激，现在引发条件性恐惧反应。
Furthermore, stimulus generalisation has occurred: Tom fears not only the original large dog but also smaller dogs, toys, and barks. This fits with the principles of generalisation in classical conditioning. Operant conditioning might also be involved: avoiding dogs reduces his anxiety (negative reinforcement), making him more likely to avoid them in the future.
此外，发生了刺激泛化：汤姆不仅害怕最初的那只大狗，还害怕小狗、玩具和狗叫声。这符合经典条件反射中的泛化原理。操作性条件反射也可能参与其中：回避狗减少了他的焦虑（负强化），使得他未来更可能回避它们。
7. Linking Theory to the Case | 将理论与案例联系起来
By linking theory to Tom’s experience, we can develop a more complete explanation. The initial fear was a conditioned emotional response. Over time, avoidance behaviours were strengthened because they offered temporary relief. This creates a cycle that maintains the phobia.
通过将理论与实践联系起来，我们可以形成更完整的解释。最初的恐惧是一种条件性情绪反应。随着时间的推移，回避行为因能带来暂时的缓解而得到强化。这形成了一个维持恐惧症的循环。
Psychologists might also consider the role of observational learning: Tom’s sister once screamed when a small dog approached, but there is no strong evidence that this influenced Tom. The main mechanism appears to be direct conditioning. In a case study, it is important to consider alternative explanations but to base conclusions on the evidence collected.
心理学家也可能考虑观察学习的作用：汤姆的姐姐曾在有小狗靠近时尖叫，但没有有力证据表明这影响了汤姆。主要机制似乎是直接条件反射。在案例研究中，重要的是考虑替代解释，但要基于收集的证据得出结论。
8. Strengths and Weaknesses of This Case Study | 这个案例研究的优点和缺点
One strength is the richness of data. Combining interviews, observations and background reports provides a holistic view of Tom’s fear. This depth is impossible with large-scale surveys. The case study also allows for the exploration of unique details, such as the specific sound of the bark that triggered a panic attack.
一个优点是数据丰富。结合访谈、观察和背景报告提供了汤姆恐惧的全貌。这种深度是大规模调查无法实现的。案例研究还允许探索独特细节，比如引发惊恐发作的具体狗叫声。
However, a key weakness is low generalisability. Tom’s experience and his way of coping may not be the same as other children with dog phobias. Additionally, the psychologist’s interpretation may be subjective. Remember that in a case study, the researcher must be cautious about drawing cause-and-effect conclusions, as there is no experimental manipulation.
然而，一个关键缺点是推广性低。汤姆的经历和应对方式可能与其他患有恐狗症的儿童不同。此外，心理学家的解释可能是主观的。请记住，在案例研究中，研究者必须谨慎地得出因果结论，因为没有实验操纵。
9. Ethical Considerations | 伦理考量
When a psychologist works with a child like Tom, ethical guidelines must be followed. Informed consent was obtained from Tom’s parents, and Tom himself gave assent after the study was explained in simple terms. Confidentiality is maintained: we do not use Tom’s real surname or school name. The psychologist also ensured that no procedures caused distress; for example, exposure to a real dog was not attempted without proper preparation.
当心理学家与像汤姆这样的儿童工作时，必须遵守伦理准则。已获得汤姆父母的知情同意，并且在以简单语言解释研究后，汤姆本人也表达了同意。保密性得到维护：我们不使用汤姆的真实姓氏或学校名称。心理学家还确保没有任何程序引起痛苦；例如，在没有适当准备的情况下，不尝试暴露于真实的狗。
Right to withdraw was respected: Tom was reminded he could stop any activity at any time. Debriefing is planned for the future, once Tom has overcome his fear, to explain how the data helped. Ethical practice is central to any psychological research in schools and clinics.
尊重退出权：汤姆被提醒可以随时停止任何活动。待汤姆克服恐惧后，未来计划进行事后解释，说明数据如何提供帮助。伦理实践是学校和诊所任何心理学研究的核心。
10. Practice Task: Analyse a Mini-Case | 实践任务：分析迷你
Published by TutorHao | Year 7 Psychology Revision Series | aleveler.com
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