A Level Psychology OCR Practice Exam

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What type of experimental design was used in the Barkley-Levenson and Galvan study?

Repeated measures
Independent measures
Matched pairs
Within-subjects

The correct answer is: Independent measures

The Barkley-Levenson and Galvan study utilized an independent measures design. This approach involves different participants being assigned to each condition of the experiment, which helps eliminate potential order effects that can occur in repeated measures designs. In the context of the study, when using independent measures, researchers can compare the responses of different groups of participants without the confounding variable of participant variance in repeated conditions. This design is particularly useful when the research involves assessments that could lead to fatigue or carryover effects if the same participants were tested multiple times. Thus, each participant contributes data to only one condition, allowing a clean comparison of results across different groups.