📚 Year 9 Edexcel Psychology: Unit Test Mock Paper Analysis | 9年级Edexcel心理学：单元测试模拟卷解析
Welcome to our detailed walkthrough of a Year 9 Edexcel Psychology mock paper. This analysis unpacks each question type, clarifies key concepts, and reinforces exam technique. By modelling high-quality answers, you will gain confidence in applying psychological knowledge to varied assessment formats.
欢迎来到9年级Edexcel心理学模拟卷的详细解析。本文逐类剖析试题，厘清核心概念，并巩固考试技巧。通过示范高分答案，你将增强将心理学知识应用于不同评估形式的信心。
1. Exam Structure and Assessment Breakdown | 考试结构与评分细则
The mock paper reflects the Edexcel GCSE 9-1 assessment objectives and is designed to be accessible for Year 9 learners. It contains three sections totalling 60 marks, mirroring the style of future external examinations. Section A comprises 20 multiple-choice questions, Section B contains five short-answer questions, and Section C features one extended response scenario.
本模拟卷遵循Edexcel GCSE 9-1评估目标，并针对9年级学生设计。试卷包含三部分，共计60分，贴近未来外部考试风格。A部分为20道选择题，B部分为5道简答题，C部分为一道扩展情景分析题。
Assessment Objective 1 (AO1) tests knowledge and understanding of psychological ideas, processes, and procedures. AO2 demands application of knowledge to novel scenarios. AO3 requires evaluation and analysis of studies and theories. The table below summarises the mark distribution; notice that application and evaluation carry heavier weight, so memorising facts alone is insufficient.
评估目标一（AO1）考查对心理学观念、过程和程序的知识与理解。AO2要求将知识应用于新情境。AO3则要求对研究和理论进行评价与分析。下表总结了分数分布；注意应用与评价占比较高，因此仅靠记忆事实远远不够。
| Section | Marks | AO1 | AO2 | AO3 |
|---|---|---|---|---|
| A – Multiple Choice | 20 | 14 | 6 | 0 |
| B – Short-Answer | 30 | 10 | 12 | 8 |
| C – Extended Response | 10 | 0 | 4 | 6 |
2. Mastering Research Methods: Variables, Hypotheses and Operationalisation (Q1-2) | 掌握研究方法：变量、假设与操作化（题1-2）
Question 1 asked you to identify the independent variable (IV) in a caffeine and reaction time experiment. The correct answer was 'amount of caffeine consumed'. The dependent variable (DV) is what you measure — here, reaction time in milliseconds. A common confusion is reversing the two, so remind yourself: the IV is what the researcher manipulates; the DV is the outcome that is measured.
第1题要求指出咖啡因与反应时间实验中的自变量。正确答案是“摄入的咖啡因量”。因变量是你测量的内容——此例中是反应时间（毫秒）。常见的困惑是将两者颠倒，因此提醒自己：自变量是研究者操纵的变量；因变量是所测量的结果。
Question 2 required writing a directional hypothesis. A top-level answer stated: 'Participants who consume 200 mg of caffeine will have significantly faster reaction times than those who consume a placebo.' A non-directional version would simply
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