Dr. Soto was conducting research in a small rural community in Asia that was affected by an earthquake. Dr. Soto collected baseline measurements on posttraumatic responses and then the natural disaster assistance team arrived. Dr. Soto collected the same information again from respondents after the disaster assistance team had been stationed for one week. After two weeks the disaster assistance team left and Dr. Soto collected posttraumatic response data again. Dr. Soto expected that the posttraumatic responses would return to baseline after the disaster assistance team left. Dr. Soto is using what type of design?

Question

Quizplus · Accepted Answer

Dr. Soto is using an A-B-A design, also known as a withdrawal design, because they are measuring the effects of the intervention (the disaster assistance team) by collecting data before and after the intervention and then again after the intervention is removed. The A phase is the baseline, the B phase is the intervention, and the second A phase is the return to baseline.

Dr Soto Was Conducting Research in a Small Rural Community