📚 Case Study Practice in IGCSE WJEC Psychology | IGCSE WJEC 心理学：案例分析实战演练
In IGCSE WJEC Psychology, case study questions test your ability to apply psychological theories and concepts to real-life or hypothetical scenarios. Mastering these questions is essential for achieving high marks. This article provides a structured approach and multiple practice examples with model answers to boost your confidence.
在IGCSE WJEC心理学中，案例分析题考查你将心理学理论和概念应用于真实或假设情境的能力。掌握这类题目是取得高分的关键。本文提供结构化方法和多个带范例答案的练习实例，助你提升信心。
1. What is a Case Study in WJEC Psychology? | 什么是WJEC心理学中的案例分析？
A case study question presents a short description of an individual, group or event. Your task is to identify relevant psychological ideas, explain the behaviour shown and often evaluate the theories or research that relate to the situation.
案例分析题会给出一个关于个人、群体或事件的简短描述。你的任务是识别相关的心理学观点，解释所展现的行为，并通常需要评析与该情境相关的理论或研究。
The WJEC specification expects you to link the scenario to content from topics such as memory, social influence, developmental psychology and psychological problems. You must move beyond simply describing theories and demonstrate how they work in practice.
WJEC大纲要求你将情景与记忆、社会影响、发展心理学和心理问题等主题的内容联系起来。你必须超越简单描述理论，展示它们在实践中如何运作。
2. Step-by-Step Approach to Analysing a Case Study | 案例分析的分步方法
Read the scenario carefully, twice. Underline keywords that hint at a psychological process, such as 'remembered wrong details', 'felt pressured' or 'strange thoughts'. Then decide which topic area the question belongs to.
仔细阅读情景描述，最好读两遍。在暗示心理过程的关键词下划线，例如"记错了细节""感到有压力"或"奇怪的想法"。然后判断题目属于哪个主题领域。
Next, identify one or two core theories or studies that match. For example, if someone's memory is distorted, think of the reconstructive memory model or Loftus & Palmer (1974). Form a clear Point – Evidence – Explanation (PEE) structure: state the relevant concept, give an example from the case as evidence, and explain how the concept accounts for the behaviour.
下一步，识别出一到两个匹配的核心理论或研究。例如，如果某人的记忆被歪曲了，就想到重构记忆模型或洛夫特斯和帕尔默(1974)。构建一个清晰的论点-证据-解释(PEE)结构：陈述相关概念，从案例中举例作为证据，并解释该概念如何解释行为。
Finally, add a brief evaluation if the question requires it – mention a strength or limitation of the theory in explaining this particular case. This shows higher-order thinking.
最后，如果题目要求，添加简洁的评价——提及该理论在解释这个具体案例时的一个优点或局限。这能展示高阶思维能力。
3. Case Study 1: Memory – Eyewitness Testimony | 案例1：记忆——目击者证词
Scenario: Mark witnessed a car accident. When questioned by the police two days later, he said the car 'smashed' into the traffic light. However, CCTV footage shows the car only bumped into it at low speed. Mark also confidently described a driver wearing a red jacket, but the real driver wore a blue one.
情景：马克目睹了一场车祸。两天后接受警方询问时，他说汽车"猛撞"到了交通信号灯。然而，监控录像显示汽车只是低速撞上了信号灯。马克还自信地描述司机穿着红色夹克，但真正的司机穿的是蓝色夹克。
Question: Use your knowledge of memory to explain why Mark's recollection might be inaccurate. Refer to research in your answer.
问题：运用你的记忆知识解释马克的回忆为什么可能不准确。回答中请引用相关研究。
4. Interpretation and Model Answer for Case Study 1 | 案例1的解读与范例答案
This scenario points to the reconstructive nature of memory and the effect of leading questions. The verb 'smashed' is crucial – Mark used a more severe word, possibly influenced by the question wording, as shown by Loftus & Palmer (1974).
这个情景指向记忆的重构性质以及引导性问题的影响。动词"猛撞"至关重要——马克使用了一个更严重的词，可能受到了问题用词的影响，正如洛夫特斯和帕尔默(1974)所展示的那样。
A model answer could start: 'Mark's inaccurate memory can be explained by the reconstructive memory theory. Bartlett argued that memories are not exact copies but are reconstructed using schemas.' Evidence from the case: Mark's schema of a car accident might include severe damage and red cars standing out, so he filled in gaps with these expectations.
一个范例答案可以这样开始："马克的不准确记忆可以用重构记忆理论来解释。巴特利特认为记忆不是精确的副本，而是利用图式进行重构的。"案例中的证据：马克关于车祸的图式可能包含严重损坏和显眼的红色汽车等，于是他用这些预期填补了空白。
Also, Loftus & Palmer found that participants who heard 'smashed' gave higher speed estimates and were more likely to remember broken glass. Mark's use of 'smashed' may reflect a leading question from the police. The red jacket detail could be a source monitoring error – he merged another memory. A strength of this explanation is that it is supported by controlled experiments, but a limitation is that real eyewitnesses feel more stress, which can also affect recall.
此外，洛夫特斯和帕尔默发现，听到"猛撞"的参与者会给出更高的车速估计，并且更可能记住有碎玻璃。马克使用"猛撞"一词可能反映出警方提问的引导性。红色外套的细节可能是来源监控错误——他混入了其他记忆。这个解释的一个优点是得到控制实验的支持，但局限在于真实目击者感受到更大的压力，这也会影响回忆。
5. Case Study 2: Social Influence – Conformity in School | 案例2：社会影响——校园从众
Scenario: Emma, a Year 10 student, notices that all her friends start wearing a particular expensive brand of trainers. She personally thinks they are overpriced and not very comfortable, but she buys them anyway to avoid being teased. In class, when the majority of her peers say that a clearly wrong answer is correct, Emma also raises her hand to agree, even though she knows it is false.
情景：十年级学生艾玛注意到所有朋友都开始穿某个昂贵的品牌运动鞋。她个人觉得它们价格过高且不太舒服，但为了避免被嘲笑还是买了。在课堂上，当大多数同学说一个明显错误的答案正确时，艾玛也举手赞同，尽管她明知那是错误的。
Question: Explain Emma's behaviour using concepts from social influence. Refer to psychological research.
问题：运用社会影响的概念解释艾玛的行为。请引用心理学研究。
6. Interpretation and Model Answer for Case Study 2 | 案例2的解读与范例答案
Emma's actions demonstrate both normative social influence and informational social influence. First, her purchase of the trainers is a clear example of compliance driven by a desire to fit in and avoid disapproval – normative influence.
艾玛的行为既展示了规范性社会影响，也展示了信息性社会影响。首先，她购买运动鞋是明显的顺从行为，由渴望融入和避免不赞同所驱动——即规范性影响。
A model answer: 'Asch's (1951) line judgment study showed that many participants conformed to an obviously wrong majority answer to avoid standing out. Similarly, Emma conforms in class even though she knows the correct answer. This is likely due to normative social influence – she wants to be accepted by the group.' The trainers example also fits this, as she fears being teased.
范例答案："阿希(1951)的线条判断研究显示，许多参与者会遵从明显错误的大多数观点，以避免显得与众不同。同样，艾玛在课堂上遵从了错误答案，尽管她知道正确的。这很可能是由于规范性社会影响——她希望被群体接纳。"运动鞋的例子也符合这一点，因为她害怕被嘲笑。
Informational influence may also play a role in the classroom scenario: Emma might doubt herself when the majority is unanimous. Research by Asch found conformity decreased when there was a dissenter. Evaluation: Asch's study used a lab experiment with high control, but it was conducted on male students in 1950s America, so it may not fully represent Emma's situation today. However, the basic mechanisms still apply.
信息性影响也可能在课堂情景中起作用：当多数人一致时，艾玛可能怀疑自己。阿希的研究发现，当有一个反对者时，从众行为就会减少。评价：阿希的研究使用了控制性高的实验室实验，但对象是20世纪50年代的美国男学生，因此可能不完全代表艾玛今天的情形。不过，基本机制仍然适用。
7. Case Study 3: Cognitive Development – Piagetian Scenario | 案例3：认知发展——皮亚杰式情境
Scenario: Four-year-old Tom is shown two identical short, wide glasses of water. He agrees they contain the same amount. The water from one glass is then poured into a tall, thin glass in front of him. Tom now insists that the tall glass has more water because it looks 'higher'. His seven-year-old sister, Mia, laughs and tells him the amount is still the same, because no water was added or removed.
情景：四岁的汤姆面前放着两个相同的矮宽杯子盛的水，他承认两个杯子里的水一样多。然后，当着他的面，将一个杯子里的水倒入一个高而细的杯子里。汤姆现在坚持认为高杯子里的水更多，因为它看起来"更高"。他七岁的姐姐米娅笑着告诉他水量还是一样的，因为水没有增加也没有减少。
Question: Use Piaget's theory of cognitive development to explain the difference in Tom's and Mia's understanding.
问题：运用皮亚杰的认知发展理论解释汤姆和米娅理解上的差异。
8. Interpretation and Model Answer for Case Study 3 | 案例3的解读与范例答案
Tom is in the pre-operational stage (ages 2–7) according to Piaget. Children in this stage lack conservation of liquid quantity. They focus on one dimension – the height of the water – and ignore the compensating change in width. This is called centration.
根据皮亚杰，汤姆处于前运算阶段(2–7岁)。这个阶段的儿童缺乏液体守恒能力。他们只关注一个维度——水的高度——而忽略了宽度的补偿性变化。这叫做中心化。
A model answer: 'Tom's failure to understand that the amount of water remains the same shows a lack of conservation. Piaget's classic conservation of liquid task demonstrates that pre-operational children cannot mentally reverse the action of pouring. Tom is centrated on the height, so he judges "more".' Mia, at age seven, is in the concrete operational stage. She can perform mental operations like reversibility and decentration, realising that the volume is conserved regardless of the container's shape.
范例答案："汤姆未能理解水量保持不变，这显示出缺乏守恒能力。皮亚杰的经典液体守恒任务证明，前运算阶段的儿童无法在心理上逆转倾倒的动作。汤姆中心化在高度上，所以他判断 '更多'。"七岁的米娅处于具体运算阶段。她能够进行心理运算，如可逆性和去中心化，意识到无论容器形状如何变化，体积是守恒的。
Evaluation: Piaget's stage theory has been influential, but it underestimated young children's abilities. Some research shows that when the task wording is simplified, children can show conservation earlier. However, the stages provide a useful framework for explaining Tom and Mia's responses.
评价：皮亚杰的阶段理论影响深远，但它低估了幼儿的能力。一些研究表明，当任务用语简化后，儿童能更早表现出守恒。然而，这些阶段为解释汤姆和米娅的反应提供了一个有用的框架。
9. Case Study 4: Psychological Problems – Phobia | 案例4：心理问题——恐惧症
Scenario: 15-year-old Jake has an intense fear of dogs (cynophobia). When he was five, a large barking dog jumped on him, knocking him over. Since then, he avoids parks and often crosses the street if a dog approaches. He feels his heart race and palms sweat even when seeing a small, calm dog on a lead. His mother has the same fear and always reacted anxiously around dogs.
情景：15岁的杰克对狗有强烈的恐惧（恐狗症）。五岁时，一条大叫的大狗扑到他身上，把他撞倒了。从那以后，他就避开公园，如果有狗靠近，他常常会过马路避开。即使看到一条用绳子牵着的小型安静的狗，他也会心跳加速、手心出汗。他的母亲有同样的恐惧，总是在狗身边表现出焦虑。
Question: Explain Jake's phobia using the behaviourist approach and suggest a treatment based on this explanation.
问题：运用行为主义方法解释杰克的恐惧症，并根据这一解释提出一种治疗方法。
10. Interpretation and Model Answer for Case Study 4 | 案例4的解读与范例答案
Jake's phobia can be explained through classical conditioning (acquisition) and operant conditioning (maintenance). The initial incident was a traumatic event where the unconditioned stimulus (being knocked over) produced fear (unconditioned response). The dog became a conditioned stimulus associated with fear.
杰克的恐惧症可以通过经典条件作用（习得）和操作性条件作用（维持）来解释。最初的事件是一次创伤性经历：无条件刺激（被撞倒）引起了恐惧（无条件反应）。狗变成了条件刺激，与恐惧相联系。
Model answer: 'According to classical conditioning, Jake learned to associate the dog (neutral stimulus) with the frightening event (UCS), leading to a conditioned fear response. His mother's anxious reactions may have contributed to maintenance through observational learning or further conditioning. Avoidance behaviour is negatively reinforced because escaping or staying away from dogs reduces his immediate anxiety, making the phobia persist.'
范例答案："根据经典条件作用，杰克学会将狗（中性刺激）与可怕的事件（无条件刺激）联系起来，导致条件性恐惧反应。他母亲的焦虑反应可能通过观察学习或进一步的条件作用影响了恐惧的维持。回避行为被负强化，因为逃离或远离狗减少了即时的焦虑感，从而使恐惧症持续存在。"
A suitable treatment is systematic desensitisation: Jake creates a fear hierarchy, learns relaxation techniques, and gradually faces increasingly threatening dog-related stimuli (pictures, videos, then real encounters) while remaining relaxed. This counterconditions the fear response. Flooding is an alternative but may be too intense. Evaluation: systematic desensitisation is effective for specific phobias and has ethical advantages, though it does not address possible cognitive roots like irrational beliefs.
适合的治疗方法是系统脱敏：杰克建立恐惧层次，学习放松技巧，并在保持放松的同时逐步面对越来越有威胁性的与狗相关的刺激（图片、视频，然后是真实接触）。这能对抗条件化恐惧反应。满灌法是另一种选择，但可能过于剧烈。评价：系统脱敏对特定恐惧症有效，并具有伦理优势，尽管它不解决可能的认知根源，如非理性信念。
11. Common Mistakes and How to Avoid Them | 常见错误及如何避免
One frequent mistake is describing theories without linking them to the case. WJEC examiners look for application, so always use phrases like 'In this case...' or 'This is shown by...'. Avoid lengthy general introductions.
一个常见的错误是描述理论却不将它们与案例联系起来。WJEC考官看重应用，所以要始终使用"在本案例中……"或"这体现在……"这样的短语。避免冗长的一般性介绍。
Another error is failing to address all parts of a question, such as forgetting to include evaluation when asked. Make sure you tick off each instruction word: 'explain', 'suggest', 'evaluate'. Also, do not confuse theories from different topics – double-check that you are applying the correct concept.
另一个错误是未能回应问题的所有部分，比如要求评价时却忘记了。务必勾画每一个指令词："解释""建议""评价"。另外，不要混淆不同主题的理论——仔细检查你应用的是否是正确的概念。
Some candidates use technical terms incorrectly; for instance, confusing 'operant conditioning' with 'classical conditioning'. Keep a glossary in your revision and practise defining terms accurately.
有些考生使用专业术语不准确；例如，将"操作性条件作用"与"经典条件作用"混淆。在复习时保持一个术语词汇表，并练习准确定义术语。
12. Final Tips for Success | 成功技巧总结
Before the exam, practise at least three case studies from each topic area with timed conditions. Build up a bank of key phrases like 'research suggests...', 'this supports the view that...', 'a limitation of this explanation is...'.
考试前，在限时条件下，每个主题领域至少练习三个案例分析题。积累一个关键短语库，如"研究表明……""这支持了……的观点""这个解释的局限在于……"。
During the exam, plan your answer in the margin for one minute. Outline which theory, which evidence from the case, and one evaluation point. This short plan keeps your answer focused and organised, maximising marks for application and analysis.
考试期间，在页边用一分钟规划你的答案。列出要用哪个理论、来自案例的哪条证据，以及一个评价点。这份简短的规划能让你的答案保持集中、有条理，最大限度地获得应用和分析分。
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