Alcohol misuse and posttraumatic stress disorder: a response to Lacoursiere and Coyne

The criticisms in Lacoursiere and Coyne's comment are refuted point by point. The criticisms of Roy's statistical methods are judged irrelevant because statistical significance related to what was only a tangential issue in Roy's study. The clinical implications of the relationship between posttraumatic stress disorder and alcohol misuse are also discussed.