Random assignment, a defining feature of an experiment, means that participants
A) select the particular experimental manipulations they wish to experience.
B) are chosen randomly from the population of interest.
C) have an equal chance of being in any of the conditions.
D) are assigned to groups on the basis of their preexisting differences.

Question

Quizplus · Accepted Answer

Random assignment ensures that each participant has an equal opportunity to be assigned to any given group within an experiment. This process helps to distribute participant characteristics evenly across all groups, which can reduce the impact of confounding variables and increase the internal validity of the study.

Random Assignment, a Defining Feature of an Experiment, Means That