Randomization in an experimental design assures
A) external validity of the findings.
B) the relevance of the hypothesis in question.
C) accurate observation of the dependent variable.
D) statistical equivalence of groups.
E) lack of pretest sensitivity.

Question

Quizplus · Accepted Answer

Randomization in experimental design helps to ensure that groups are statistically equivalent at the start of the study. This reduces the potential for confounding variables and increases the internal validity of the findings.

Randomization in an Experimental Design Assures