Treatment ____ refers to whether or not a treatment can produce changes under well-controlled conditions.
A) efficacy
B) effectiveness
C) reliability
D) validity

Question

Quizplus · Accepted Answer

Efficacy refers to whether or not a treatment can produce changes under well-controlled conditions (such as in clinical trials or laboratory studies). Effectiveness, on the other hand, refers to whether or not a treatment can produce changes in real-world clinical settings with diverse patient populations. Reliability refers to the consistency and reproducibility of results, while validity refers to the accuracy and meaningfulness of results. In this case, the question specifically asks about the ability of a treatment to produce changes under well-controlled conditions, which is the definition of efficacy.

Treatment ____ Refers to Whether or Not a Treatment Can