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Cambridge IGCSE Psychology practice

Paper 1 structured question: T he features of an experiment.

Try the question first, then check the answer and practise the same topic again.

Attempt questionT he features of an experiment. revisionRevise the key idea

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T he features of an experiment.

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Paper 1Approaches, Issues and Debates3 marks

A researcher is conducting an experiment to determine how different levels of caffeine affect reaction times.

Description

Caffeine and Reaction Times

Participants are given varying amounts of caffeine: 0mg, 50mg, and 100mg. Their reaction times are then measured using a computer test.

  1. a

    Explain the role of the independent variable in this experiment.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 1 structured question: T he features of an experiment.

Paper 1Approaches, Issues and Debates1 marks

Description

Teaching Methods Study

The study involved three different teaching methods: traditional lectures, interactive discussions, and online learning. Each method was applied to different groups of students to assess their performance on a standardized test.

  1. a

    Define the term 'independent variable' as used in this study.

    Aim for approximately 1 distinct marking point.

    [1]