A pretest may be used in an experiment
A) as a matching variable.
B) to assess group equivalence.
C) when change is being investigated.
D) All of these are true.

Question

Quizplus · Accepted Answer

A pretest can serve multiple purposes in an experiment, including as a matching variable to ensure groups are equivalent, as a measure of change being investigated in the experiment, and as a baseline measure to assess group differences before the intervention is introduced. Therefore, all of the choices are true.

A Pretest May Be Used in an Experiment