In the text,the authors distinguish between effectiveness studies (which are designed to find out whether a therapy works in real,day-to-day clinical practice)and efficacy studies.How are effectiveness studies different from efficacy studies?
A) Effectiveness studies involve unhappy couples.
B) Efficacy studies involve experiments using a control group.
C) Effectiveness studies tell us whether a therapy works in a controlled laboratory setting.
D) Effectiveness studies and efficacy studies do not differ in any important way.

Question

Quizplus · Accepted Answer

Efficacy studies are characterized by their controlled experimental conditions, often involving a control group, to determine if a therapy works under ideal circumstances. This contrasts with effectiveness studies, which assess the therapy's performance in real-world settings.

In the Text,the Authors Distinguish Between Effectiveness Studies (Which Are