When each participant has an equal chance of being assigned to any of the conditions of the experiment, they are said to be
A) Non-randomly assigned
B) Randomly assigned
C) A control group
D) The experimental group

Question

Quizplus · Accepted Answer

When participants are randomly assigned to conditions, it helps to ensure that any differences in the groups are not due to pre-existing differences between the participants. This increases the chances that any differences observed between the groups are due to the manipulation of the independent variable.

When Each Participant Has an Equal Chance of Being Assigned