In an industrial psychology experiment, one group of participants is exposed to confinement while another group is not. All participants then perform a manual dexterity task, and their performance is examined. What is the independent variable?

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The independent variable is the one that is manipulated, and in this case, it is confinement. The experiment is designed to see if exposure to confinement affects manual dexterity, so confinement is the independent variable that is being tested. Gender, dexterity, and anxiety are not being manipulated or tested in this experiment, so they are not the independent variables.

In an Industrial Psychology Experiment, One Group of Participants Is