Objective: We examined the utility of the Minnesota Multiphasic Personality Inventory-3 (MMPI-3) to detect feigned over-reporting using a symptom-based coaching simulation design across a control group and three diagnostic conditions: posttraumatic stress disorder (PTSD), minor traumatic brain injury (mTBI), and comorbid PTSD and mTBI.
Method: Participants were310 college students who wererandomly assigned to one of the four conditions. For participants in the feigning conditions, they were provided with a descriptionof their respective disorder condition throughout the duration of the session and asked to feign according to their condition while completing the MMPI-3.