A variable, such as the personality of a participant, that might affect the outcome of an experiment would be controlled by
A) random assignment of participants.
B) assuming the effects of the variable are negligible.
C) manipulating the dependent variables simultaneously.
D) repeating the experiment several times until the results are consistent.

Question

Quizplus · Accepted Answer

Random assignment of participants to different groups in an experiment helps to ensure that any variables, such as personality differences, are evenly distributed across groups. This method controls for the effects of such variables on the experiment's outcome by making it less likely that they will skew the results in favor of one group.

A Variable, Such as the Personality of a Participant, That