Which of the following steps would improve the external validity of an analogue experiment of sub-clinical depression in college students?
A)Include a no-treatment control group.
B)Perform statistical analyses on the results.
C)Use clinically depressed patients.
D)Include several types of therapy.

Question

Quizplus · Accepted Answer

Using clinically depressed patients would improve the external validity of an analogue experiment because it would mirror the population of interest and increase the generalizability of the results. Option A is necessary for internal validity but not external validity. Option B is a necessary step for analyzing data but does not address external validity. Option D would address treatment effectiveness but not necessarily external validity.

Which of the Following Steps Would Improve the External Validity