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In a repeated measures design, the same participants take part in all conditions of the experiment. Counterbalancing is used to change the order of conditions to minimize the effects of extraneous variables.

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Cambridge IGCSE PsychologyResearch methods

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In a repeated measures design, the same participants take part in all conditions of the experiment. Counterbalancing is used to change the order of conditions to minimize the effects of extraneous variables

This point belongs to T he features of an experiment., especially T he features of an experiment. outcomes.
You need to be able to in a repeated measures design, the same participants take part in all conditions of the experiment. Counterbalancing is used to change the order of conditions to minimize the effects of extraneous variables.
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Study on Sleep Deprivation

Participants were tested in two conditions: well-rested and sleep-deprived. The order of these conditions was counterbalanced to control for order effects.

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Define repeated measures design
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Related learning objectives

An experiment is a method used to study how one variable affects another under controlled conditions. Knowledge of different experiment types, such as laboratory and field experiments, is not required.
T he features of an experiment. outcomes
Apply your understanding of experiments to new situations.
T he features of an experiment. outcomes
The independent variable is the one that is manipulated in an experiment and can have multiple conditions or levels.
T he features of an experiment. outcomes
The dependent variable is the one that is measured in an experiment, which can be assessed through various methods such as tests, observations, questionnaires, and interviews.
T he features of an experiment. outcomes
Apply your understanding of independent and dependent variables to new situations.
T he features of an experiment. outcomes

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