There are many good reasons for pretesting participants before introducing the independent variable. Perhaps the most common of these is that pretesting
A) gives the experimenter direct evidence of change in performance.
B) is a prerequisite for posttesting.
C) eliminates the need for random assignment of participants to groups.
D) increases the sensitivity of the experiment.

Question

Quizplus · Accepted Answer

Pretesting provides a baseline measurement, allowing researchers to directly compare pre- and post-intervention performance to assess changes.

There Are Many Good Reasons for Pretesting Participants Before Introducing