The definition of a traumatic event in Criterion A for posttraumatic stress disorder (PTSD) was narrowed in DSM-5 for events involving indirect exposure to the death of a loved one. Whereas the DSM-IV definition encompassed the sudden, unexpected death of a loved one regardless of the circumstances, the DSM-5 definition now requires that the death…

Accidents and fatalities at USA amusement parks are rare, yet when they do occur, they can injure, maim, and even kill. This dissertation sheds light on how three family-owned amusement parks learned and improved as organizations from their own and others' failure experience. Using a multiple case study design, 18 participants were interviewed.…