Quasi-Experimental Designs If a researcher studies the effectiveness of anti-drug commercials by
Comparing the self-reported frequency of drug use among teens for a 6-
Month period before and after the commercials aired, she is using a(n)
____ design.
A)cross-lagged panel
B)cross-sectional
C)ex post facto
D)pretest/posttest

Question

Quizplus · Accepted Answer

The researcher is comparing the self-reported frequency of drug use before and after the commercials aired, which is an example of a pretest/posttest design. The other options are not applicable or do not fit the description of the study design.

Quasi-Experimental Designs If a Researcher Studies the Effectiveness of Anti-Drug