Nora Is Interested in Differences in Amount of Content Retained

Multiple Choice

Nora is interested in differences in amount of content retained from a lecture based on time of class. She compares her two sections, one that meets at 8 AM and one that meets at 2 PM, by testing them, unannounced, on content that she taught two weeks ago. Which of the following designs is Nora best illustrating?

A) One-group posttest-only design
B) One group pretest-posttest design
C) Posttest only control group design
D) Posttest-only design with nonequivalent groups