All of the following are accurate statements about pretests and posttests EXCEPT ______.
A) in order to be an experiment, there must be a posttest
B) in order to be an experiment, there must be a pretest
C) some experiments have multiple posttests and pretests
D) pretests provide a direct measure of change over time

Question

Quizplus · Accepted Answer

A pretest is not a mandatory component for a study to be classified as an experiment. An experiment primarily requires manipulation of independent variables and observation of their effects on dependent variables. Pretests are useful for establishing baselines but are not strictly necessary for all experimental designs.

All of the Following Are Accurate Statements About Pretests and Posttests