Transcultural Validation Of The Global Psychotrauma Screen

Centre for Psychological Trauma and the Global Collaboration on Traumatic Stress, Dr. Miranda Olff, PhD, Professor, University of Amsterdam, Department of Psychiatry

The Global Psychotrauma Screen (GPS) was developed by an international group of experts representing traumatic stress societies worldwide, called the Global Collaboration on Traumatic Stress (Olff et al., 2020; Schnyder et al., 2017) with the aim to address the need for a brief instrument that would tap potential (long term) consequences of (child) trauma, broader than Posttraumatic Stress Disorder symptoms. It can be applied to tap the consequences of all types of trauma including more recent events. We are currently recruiting Canadian participants to validate the GPS with Canadians and develop Canadian norms. For the purpose of collecting norm data, participants' anonymous responses will be saved to a secure server. If the results are published, only group-averaged results will be published; participants' personal results or any identifying information will not be published. Results will be kept for a minimum of 15 years.

Your Impact

Participating in this study will help researchers develop Canadian norms for the Global Psychotrauma Screen, which will allow Canadian clinicians and researchers to use this brief measure with their clients and research participants.

Eligibility Criteria

All genders

At least 18 years old


Age 18+

Study Tasks

Participants will be invited to complete this questionnaire (approx. 5 minutes). For the purpose of collecting norm data, participants' anonymous responses will be saved to a secure server.
Participants may leave the survey at any time simply by exiting the computer application, and may also refuse to answer any question you do not want to answer.


This study was cleared by the University of Amsterdam.


Mental health

Activity and Time

Psychology, Health and Wellness


Weekdays, Weeknights, Weekends, Overnight

5 minute(s) - 7 minute(s) per session

1 session(s)

The Global Psychotrauma Screen (GPS) is available in 23 languages and consists of 22 items, each to be answered in a yes/no format.


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Study Address

This study doesn't require any in-person visits. Complete it in the comfort of your own home!

You must be a resident in Canada, North America to join this study

Posting date: Jun 9, 2020

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