Remotely Resolving Psychological Stress (Remote RePS)

The investigators have developed a mobile app called Resolving Psychological Stress (REPS) for people with posttraumatic stress disorder (PTSD). The app will administer threat-related attention bias modification to individuals who score high on a PTSD checklist. This study will be administered remotely to individuals in the United States. The aims of the study are to explore feasibility, acceptability and usability of the app in an entirely remote study, as well as to explore the efficacy of the app at reducing attention bias and PTSD symptom severity.