What is a repeated measure design?

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It is an experimental design wherein each participant is exposed to all conditions of an independent variable (Heiman, 2003).


Example: This fictitious study uses the Brown-Peterson paradigm to examine the effect of proactive inhibition (PI) and release from proactive inhibition on short-term memory using a 3 (PI) X 5 (trials) repeated measures design.

Application: In this study, participants are randomly assigned to three groups and each group is exposed to one of three conditions of PI such as PI/No Release, PI/Release, and No PI control and five trials as independent variables until all three groups have a chance to participate in all five trials of each PI condition with the dependent measure being the mean score of the correctly recalled stimulus words.


Heiman, G. W. (2003). Basic Statistics for the Behavioral Sciences: Fourth Edition. Boston, MA: Houghton Mifflin Company.

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