Simple random assignment is most effective when
A) the sample size is large.
B) practice effects are not operating.
C) the participants to be assigned to the experimental group are chosen before those assigned to the control group.
D) a pretest is conducted to assess individual differences that are related to the dependent variable.

Question

Quizplus · Accepted Answer

Simple random assignment is most effective when the sample size is large because it helps to ensure that the groups are equivalent on average, reducing the impact of individual differences.

Simple Random Assignment Is Most Effective When