IGCSE Cambridge Psychology: Experimental/Practical Assessment Essentials | IGCSE Cambridge 心理学：实验/实践考核要点

📚 IGCSE Cambridge Psychology: Experimental/Practical Assessment Essentials | IGCSE Cambridge 心理学：实验/实践考核要点

In Cambridge IGCSE Psychology, the experimental and practical assessment asks you to think like a researcher. You must plan, analyse, and evaluate studies rather than only recall findings. This article highlights the key points for the practical component, including variables, hypotheses, designs, controls, ethics, data analysis, and evaluation.

在剑桥 IGCSE 心理学中，实验与实践考核要求你像研究者一样思考。你必须设计、分析和评价研究，而不仅仅是回忆结论。本文梳理实践部分的关键要点，包括变量、假设、实验设计、控制条件、伦理、数据分析和评价等。

1. Understand the practical paper focus | 理解实践考核重点

The practical component, whether it is a school-based investigation or an alternative-to-practical paper, rewards the same skill set. You must be able to plan, conduct, analyse, and evaluate a simple psychological study. Questions often begin with a short description of a proposed investigation, then ask for hypotheses, variables, controls, data presentation, and evaluation.

实践部分，无论是校内调查还是实践替代卷，都考查同一套技能。你必须能够计划、实施、分析和评价一个简单的心理学研究。题目通常先给出一段简短的研究描述，然后要求写出假设、变量、控制条件、数据呈现和评价。

Do not simply define terms. Cambridge examiners expect you to apply them to the given context. For example, if a study tests memory in noisy and quiet rooms, you should say that the independent variable is the level of background noise rather than just writing the IV.

不要只是给术语下定义。剑桥考官希望你结合给定情境应用术语。例如，如果研究比较嘈杂与安静房间中的记忆，你应写出自变量是背景噪音水平，而不只是写自变量。

2. Identifying and operationalising variables | 识别并操作化变量

The independent variable, or IV, is the factor that is deliberately changed or compared. The dependent variable, or DV, is the factor that is measured. Operationalisation means defining the IV and DV precisely so that they can

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