A clinical psychologist examined the effect of a treatment designed to reduce the amount of cigarette smoking in the day room of an inpatient psychiatric facility.His treatment consisted of a several components to maximize its potential effectiveness (e.g.,increasing the number of available activities; giving patients responsibility for care of the unit's plants,fish,etc.; the opportunity to exchange cigarettes for positive reinforcers).At the end of three months,his data indicated that cigarette smoking had declined significantly.Based on this,he is able to conclude that
A) any of the components, implemented by itself, would reduce smoking in the day room.
B) the treatment will work only when all of the components are present.
C) neither (A) nor (B)
D) both (A) and (B)

Question

Quizplus · Accepted Answer

The psychologist can conclude that the treatment as a whole was effective in reducing smoking, but cannot determine from this data whether any single component was effective on its own or if all components are necessary for the effect.

A Clinical Psychologist Examined the Effect of a Treatment Designed