Better Safe Than Sorry. A Scoping Review of Monitoring for Negative Effects in Preregistrations of Psychological Interventions.

Although negative effects of psychological interventions are suspected to be common, they are rarely investigated. Experts and international guidelines agree that monitoring for negative effects in clinical studies is needed to make psychological interventions safer and to empower patients before they give their consent to participate. Therefore, monitoring should already be considered during planning and preregistration of a study.