When you have a set of scores that have been collected at two points in time for one group of people, it indicates that:

Question

Quizplus · Accepted Answer

The situation described here is the one-group pretest-posttest design, where a single group of participants is measured twice: once before and once after some intervention or treatment. This is a common design in program evaluation and other research areas where a treatment or program is being evaluated. The other answer choices do not apply, as there is no mention of a survey method, experimental control group, or detailed examination of a single case.

When You Have a Set of Scores That Have Been