If I want to use a within subjects design to study the effect of lighting conditions on the performance of a task, I would have _____
a. all participants perform the task under both direct and indirect lighting
b. some participants perform the task under direct lighting and other participants perform the task under indirect lighting
c. all participants perform the task under direct lighting
d. all participants perform the task under indirect lighting
A
In a within subjects or repeated measures design, all participants experience all conditions of the independent variable. In this example, the conditions of the independent (manipulated) variable are direct vs. indirect lighting.
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