Author

P. Schlechter

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Review Open access Sep 2026

Social comparisons on social media and mental health: A systematic review and meta-analysis

Frequent comparisons with idealized portrayals of others on social media may be linked to poorer mental health. To test this hypothesis, we systematically searched PsycInfo, MEDLINE, and Web of Science for studies published through April 28, 2026. A total of 149 observational studies (N = 76,262) and 77 experimental st...

T. Hoppen, L. Hoefer, P. Schlechter et al. · medRxiv · 0 citations

Review Open access Aug 2026

Incidence and relative risk of negative outcomes of psychological interventions for pediatric posttraumatic stress disorder: a systematic review and meta-analysis of randomized controlled trials.

BACKGROUND Negative outcomes of psychological treatments for pediatric posttraumatic stress disorder (PTSD) have been underresearched. Although reporting has increased over the years, a comprehensive systematic review and meta-analysis is lacking. METHODS We conducted a preregistered systematic review and meta-analys...

T. Hoppen, Sophie Schlüter, Marielle Placzek et al. · Journal of Child Psychology... · 0 citations

Open access Jul 2026

Well-being comparisons and mental health outcomes following loss: a two-wave longitudinal study

ABSTRACT Background: The loss of a significant other may lead to prolonged grief disorder (PGD), posttraumatic stress disorder (PTSD), depression, anxiety, somatic symptoms, and loneliness. Comparative thinking about one’s well-being (e.g. social, temporal, counterfactual, or expectation-based comparisons) may act as a...

P. Schlechter, T. Hoppen, George A. Bonanno et al. · European Journal of Psychotr... · 0 citations