📚 AS CCEA Psychology: Case Study Practical Exercises | AS CCEA 心理学：案例分析实战演练
In AS CCEA Psychology, the case study method is a vital research approach that allows psychologists to explore unusual or unique phenomena in great depth. This article provides a step-by-step practical guide to analysing case studies, applying ethical reasoning, and writing strong exam responses.
在AS CCEA心理学中，案例研究方法是心理学家深入探究不寻常或独特现象的重要研究途径。本文提供了逐步实战指南，帮助你分析案例研究、应用伦理推理并写出高分考试答案。
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. Unlike large-scale experiments that look for general trends, a case study gathers rich, detailed data, often using multiple methods such as interviews, observations, and psychological tests.
案例研究是对单一个体、群体或事件的深入调查。与寻找普遍趋势的大规模实验不同，案例研究收集丰富而详细的数据，通常采用访谈、观察和心理测验等多种方法。
In AS CCEA Psychology, case studies are used to illustrate theories, examine rare conditions, or challenge existing explanations. Classic examples include Phineas Gage, whose personality changed after a brain injury, and Genie, a girl who experienced extreme deprivation.
在AS CCEA心理学中，案例研究用于说明理论、考察罕见状况或挑战现有解释。经典案例包括脑损伤后性格改变的菲尼亚斯·盖奇，以及经历极端剥夺的女孩吉妮。
2. Key Characteristics of Case Studies | 案例研究的关键特征
A true case study is longitudinal, meaning data are collected over an extended period. This allows psychologists to track changes and developmental processes. The focus is idiographic, seeking to understand the unique combination of factors that shape one person’s experience.
真正的案例研究是纵向的，即长时间收集数据。这使得心理学家能够追踪变化和发展过程。研究焦点是个人特质描述的，旨在理解塑造某人经历的独特因素组合。
Case studies often produce both qualitative data (e.g., transcribed interviews, diary entries) and quantitative data (e.g., test scores, reaction times). The researcher constructs a detailed case history before, during, and after the critical event or intervention.
案例研究通常同时产生定性数据（例如访谈转录稿、日记条目）和定量数据（例如测验分数、反应时间）。研究者在关键事件或干预前后构建详细的个案史。
3. Choosing a Suitable Case | 选择适合的案例
Researchers select a case because it is unusual, extreme, or uniquely able to test a theory. For instance, a person with a highly specific brain lesion can reveal how a particular brain region functions. The selection is purposive, not random.
研究者选择案例是因为它不寻常、极端或能够独特地检验某个理论。例如，有高度特异性脑损伤的人可以揭示特定脑区的功能。这种选择是有目的的，而非随机。
When practising case study analysis, try to identify why that particular individual was chosen. Ask yourself: does the case provide a critical test of an existing theory? Does it represent a rare phenomenon that cannot be studied experimentally for ethical reasons?
在练习案例分析时，尝试找出为何选定了那个特定的个体。问自己：该案例是否提供了对现有理论的关键检验？它是否代表了一种由于伦理原因无法用实验研究的罕见现象？
4. Data Collection Strategies | 数据收集策略
Case studies rely on triangulation—using multiple sources and methods to build a complete picture. Common tools include unstructured interviews, direct observation, psychometric tests, and analysis of personal documents or medical records.
案例研究依靠三角验证——使用多种来源和方法来构建完整图景。常见工具包括非结构化访谈、直接观察、心理测量测验以及分析个人文件或医疗记录。
For example, in the case of HM, who suffered severe amnesia, researchers used IQ tests, memory tasks, MRI scans, and interviews with family members. This mixed-methods approach increases the credibility of the findings.
例如，在严重失忆症患者HM的案例中，研究者使用智力测验、记忆任务、磁共振成像扫描以及家人访谈。这种混合方法提高了研究结果的可信度。
5. Analysing Qualitative Information | 分析定性信息
Qualitative data from interviews or diaries must be analysed systematically. One common technique is thematic analysis: reading through transcripts many times, identifying recurring themes, and grouping them into categories. This process is inductive, allowing patterns to emerge from the data.
来自访谈或日记的定性数据必须系统分析。常见技术是主题分析：多次通读转录稿，识别重复出现的主题，并将其归入不同类别。这个过程是归纳性的，让模式从数据中自然浮现。
Another method is content analysis, where researchers count how often certain words or phrases appear and then interpret their significance. Both approaches require reflexivity—acknowledging how the researcher’s own perspective might influence the interpretation.
另一种方法是内容分析，研究者统计特定词语或短语出现的频率，然后解读其含义。两种方法都需要反身性——承认研究者自身的视角可能如何影响解读。
6. Handling Quantitative Data in Case Studies | 处理案例研究中的定量数据
Although case studies are often associated with qualitative methods, numerical data are frequently included. A researcher may compare test scores before and after an intervention or calculate a standardised measure such as an IQ score.
尽管案例研究通常与定性方法相关联，但经常会包含数值数据。研究者可能会比较干预前后的测验分数，或者计算标准化测量指标，如智商分数。
Basic descriptive statistics like mean, range, and percentage change help summarise performance. For instance, in a case of cognitive rehabilitation, you might report: “The patient’s memory recall improved from 40% to 75% correct over six months.”
基本的描述性统计量如均值、全距和百分比变化有助于总结表现。例如，在一例认知康复案例中，你可能会报告：“患者的记忆回忆率在六个月内从40%提高到了75%。”
When evaluating numerical findings, always consider whether any improvement could be due to practice effects, natural recovery, or the placebo effect rather than the treatment itself.
在评估数值结果时，要始终考虑任何改善是否可能由于练习效应、自然恢复或安慰剂效应，而非治疗本身。
7. Ethical Safeguards | 伦理保障
Ethical considerations are paramount in case study research, especially because participants may be vulnerable. Researchers must obtain informed consent, allow withdrawal at any time, and ensure confidentiality—often using pseudonyms to protect identity.
伦理考虑在案例研究中至关重要，尤其因为参与者可能处于弱势。研究者必须获得知情同意、允许随时退出，并确保保密性——通常使用化名来保护身份。
In situations where the individual cannot give valid consent (e.g., due to brain injury or age), consent is sought from a legal guardian. Researchers must also weigh the risk of harm against the potential benefits. If revealing case details could cause distress, minimal disclosure should be the guiding principle.
在个体无法给出有效同意的情况下（例如因脑损伤或年龄），则需向法定监护人征求同意。研究者还必须权衡伤害风险与潜在收益。如果公开案例细节可能造成痛苦，应遵循最少披露原则。
8. Strengths and Limitations | 优势与局限
Case studies offer rich, holistic data that can generate new hypotheses and challenge established theories. They allow the study of rare conditions that would be impossible or unethical to manipulate experimentally. Their longitudinal nature captures the complexity of human development.
案例研究提供了丰富、整体的数据，可以产生新假设并挑战已有理论。它们使得研究那些不可能或不道德以实验操纵的罕见状况成为可能。其纵向性质捕捉了人类发展的复杂性。
However, the main weakness is limited generalisability. A single case cannot represent the entire population. Furthermore, case studies are prone to researcher bias, as the investigator selects which observations to report. The retrospective element in some case histories can also introduce memory distortions.
然而，主要弱点是推广性有限。单个案例无法代表整个总体。此外，案例研究容易受到研究者偏见的影响，因为研究者会选择报告哪些观察结果。某些个案史中的回溯因素也可能引入记忆扭曲。
Another limitation is low reliability; replic
Published by TutorHao | AS Psychology Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导