International Society for Traumatic Stress Studies

Global Psychotrauma Screen (GPS)


The GPS was developed by an international group of experts representing traumatic stress societies worldwide (initiated by ISTSS) called the “Global Collaboration on Traumatic Stress” (Schnyder et al., 2017).

The GPS is a brief instrument meant to screen for a range of trauma related psychological problems, as well as for risk and protective factors. The GPS consists as much as possible of existing items from validated scales. Apart from age and gender, the GPS consists of 22 items, each to be answered in a yes/no format. The GPS is currently available in 18 languages.

We welcome studies that gather norm data in a broad variety of individuals (trauma-exposed and non-exposed, females/males, young and old, clinical samples and healthy samples, civilians and high-risk professions such as police, military, health care professionals, cross-sectional and prospective samples etc.) across the world. If feasible, we recommend repeated assessments. Demographic and trauma or life events (e.g. LEC-5) measures should be included in order to describe the study sample.

Researchers or clinicians who wish to use the GPS or to further translate the GPS in another language are requested to contact Miranda Olff.

Author/Publisher Details

Dr. Miranda Olff

Professor, Amsterdam UMC, Dept of Psychiatry, Amsterdam Neuroscience,
location AMC & Arq Psychotrauma Expert Group, Diemen, The Netherlands

Editor-in-Chief, European Journal of  Psychotraumatology
IMPACT FACTOR 4.2 (Freely available)