McNally and his colleagues have conducted controlled experiments to examine the effectiveness of Critical Incident Stress Debriefing (CISD) on preventing post-traumatic stress disorder (PTSD). The results of the studies show that CISD is __________.
A) a very effective means of reducing PTSD
B) only effective on police officers
C) effective if administered within twenty-four hours of the trauma
D) not an effective means of preventing the onset of PTSD

Question

Quizplus · Accepted Answer

The passage states that the results of the studies show that CISD is "not an effective means of preventing the onset of PTSD." Therefore, choice D is the correct answer.

McNally and His Colleagues Have Conducted Controlled Experiments to Examine