Elena randomly asks students of a class to taste either Coke or Pepsi. Students rate their liking for the soda they taste on a scale of 1 to 10. This is an example of a _____ design.
A)pretest-posttest
B)posttest-only
C)pretest only
D)one-group posttest

Question

Quizplus · Accepted Answer

This is an example of a posttest-only design because the students are only asked to rate their liking for the soda once, after they have tasted it. There is no pretest to establish a baseline or to compare the ratings to later.

Elena Randomly Asks Students of a Class to Taste Either