The one-group pretest-post design is an improvement over a one-group design because it provides the researcher with:
A)alternative explanations
B)meaningful comparisons
C)internal validity
D)a separate control group

Question

Quizplus · Accepted Answer

The one-group pretest-posttest design allows for meaningful comparisons by comparing the same group's performance or status before and after the intervention or treatment, thus offering a way to assess changes over time.

The One-Group Pretest-Post Design Is an Improvement Over a One-Group