• 2025
• 2024
• 2023
• 2022
• 2021
• 2020
• 2019
• 2018

2025

• Kip, A., Ritter, L., Hoppen, T. H., Papola, D., Ostuzzi, G., Barbui, C., & Morina, N. (2025). Psychological interventions for adult posttraumatic stress disorder: A systematic review of published meta-analyses. Journal of Anxiety Disorders, 112, Article 103017. doi: 10.1016/j.janxdis.2025.103017.
• Hoppen, T. H., Wessarges, L., Jehn, M., Mutz, J., Kip, A., Schlechter, P., Meiser-Stedman, R., & Morina, N. (2025). Efficacy of psychological interventions for multiple-event-related PTSD in children and adolescents: a network meta-analysis. World Psychiatry, 24 (1), 144–145. doi: 10.1002/wps.21291.
• Hoppen, T. H., Wessarges, L., Jehn, M., Mutz, J., Kip, A., Schlechter, P., Meiser-Stedman, R., & Morina, N. (2025). Psychological Interventions for Pediatric Posttraumatic Stress Disorder: A Systematic Review and Network Meta-Analysis. JAMA Psychiatry, 82 (2), 130–141. doi: 10.1001/jamapsychiatry.2024.3908.
• Nolting, I. K. L., Morina, N., Hoppen, T. H., Tam, K.-P., & Kip, A. (2025). A meta-analysis on gender differences in prevalence estimates of mental disorders following exposure to natural hazards. European Journal of Psychotraumatology, 16 (1), Article 2476809. doi: 10.1080/20008066.2025.2476809.
• Hoppen, T. H., Cuno, R. M., Nelson, J., Lemmel, F., Schlechter, P., & Morina, N. (2025). Meta-analysis of randomized controlled trials examining social comparison as a behaviour change technique across the behavioural sciences. Nature Human Behaviour, 9, 1595–1612. doi: 10.1038/s41562-025-02209-2.
• Hoppen, T. H., Lindemann, A. S., Höfer, L., Kip, A., & Morina, N. (2025). Efficacy of psychological interventions for adult PTSD in reducing comorbid depression: Systematic review and meta-analysis of randomized controlled trials. The British Journal of Psychiatry, in press. doi: 10.1192/bjp.2025.10345.
• Schlechter, P., Churbaji, D., Hoppen, T. H., & Morina, N. (2025). Comparing comparisons: A transdiagnostic investigation of social and temporal comparisons and their differential effects on mental health outcomes and well-being. International Journal of Clinical and Health Psychology., 25 (3), Article 100611. doi: 10.1016/j.ijchp.2025.100611.
• Kip, A., Hoppen, T. H., Tam, K.-P., Bryant, R., Lowe, S. R., & Morina, N. (2025). Prevalence of common mental disorders in survivors of natural hazards – a meta-analytic comparison of exposed vs. non-exposed samples. Journal of Environmental Psychology, 106, Article 102690. doi: 10.1016/j.jenvp.2025.102690.

2024

• Hoppen, T. H., Meiser-Stedman, R., Kip, A., Birkeland, M. S., & Morina, N. (2024). The efficacy of psychological interventions for adult post-traumatic stress disorder following exposure to single versus multiple traumatic events: a meta-analysis of randomised controlled trials. The Lancet Psychiatry, 11 (2), 112–122. doi: 10.1016/S2215-0366(23)00373-5.
• Morina, N., Meyer, T., McCarthy, P., Hoppen, T. H., & Schlechter, P. (2024). Evaluation of the Scales for Social Comparison of Appearance and Social Comparison of Well-being. Journal of Personality Assessment, 106, 625–637. doi: 10.1080/00223891.2023.2298887.
• Schlechter, P., Hoppen, T. H., & Morina, N. (2024). Associations among posttraumatic stress disorder symptoms, life-satisfaction, and well-being comparisons: A longitudinal investigation. Journal of Traumatic Stress, 37, 448–459. doi: 10.1002/jts.23018.

2023

• Morina, N., Kampmann, I., Emmelkamp, P. M. G., Barbui, C., & Hoppen, T. H. (2023). Meta-analysis of virtual reality exposure therapy for social anxiety disorder. Psychological Medicine, 53, 2176–2176–2178. doi: 10.1017/S0033291721001690.
• Hoppen, T. H., & Morina, N. (2023). Psychological interventions for adult post-traumatic stress disorder are effective irrespective of concurrent psychotropic medication intake: A meta-analysis of randomized controlled trials. Psychotherapy and Psychosomatics, 92, 27–37. doi: 10.1159/000527850.
• Schlechter, P., Hoppen, T. H., & Morina, N. (2023). Counterfactual comparisons and affective styles in the aftermath of traumatic events. Current Psychology, 42, 32147–32156. doi: 10.1007/s12144-022-04193-6.
• Hoppen, T. H., Meiser-Stedman, R., Jensen, T. K., Birkeland, S. M., & Morina, N. (2023). The efficacy of psychological interventions for PTSD in children and adolescents exposed to single vs. multiple traumas. Meta-analysis of randomized controlled trials. The British Journal of Psychiatry, 222, 196–203. doi: 10.1192/bjp.2023.24.
• Hoppen, T. H., Jehn, M., Holling, H., Mutz, J., Kip, A., & Morina, N. (2023). The efficacy and acceptability of psychological interventions for adult PTSD: A network and pairwise meta-analysis of randomized controlled trials. Journal of Consulting and Clinical Psychology, 91, 445–461. doi: 10.1037/ccp0000809.
• Hoppen, T. H., Kip, A., & Morina, N. (2023). Are psychological interventions for adult PTSD more efficacious and acceptable when treatment is delivered in higher frequency? A meta-analysis of randomized controlled trials. Journal of Anxiety Disorders, 95, Article 102684. doi: 10.1016/j.janxdis.2023.102684.

2022

• Mutz, J., Hoppen, T. H., Fabbri, C., & Lewis, C. M. (2022). Anxiety disorders and age-related changes in physiology. The British Journal of Psychiatry, 221 (3), 528–537. doi: 10.1192/bjp.2021.189.
• Grainger, L., Thompson, Z., Morina, N., Hoppen, T. H., & Meiser-Stedman, R. (2022). Associations between therapist factors and treatment efficacy in randomized controlled trials of trauma-focused cognitive behavioral therapy for children and youth: A systematic review and meta-analysis. Journal of Traumatic Stress, 35 (5), 1405–1419. doi: 10.1002/jts.22840.
• Hoppen, T. H., Lindemann, A. S., & Morina, N. (2022). Safety of psychological interventions for adult post-traumatic stress disorder: meta-analysis on the incidence and relative risk of deterioration, adverse events and serious adverse events. The British Journal of Psychiatry, 221 (5), 658–667. doi: 10.1192/bjp.2022.111.
• Hoppen, T. H., Schlechter, P., Arntz, A., Rameckers, S. A., Ehring, T., & Morina, N. (2022). A brief measure of guilt and shame: Validation of the Guilt and Shame Questionnaire (GSQ-8). European Journal of Psychotraumatology, 13 (2). doi: 10.1080/20008066.2022.2146720.

2021

• Hoppen, T. H., Priebe, S., Vetter, I., & Morina, N. (2021). Global Burden of Post-traumatic Stress Disorder and Major Depression in Countries Affected by War Between 1989 and 2019: A Systematic Review and Meta-analysis. BMJ Global Health, 6 (7), e006303. doi: 10.1136/bmjgh-2021-006303.
• Morina, N., Hoppen, T. H., & Kip, A. (2021). Study quality and efficacy of psychological interventions for posttraumatic stress disorder: A meta-analysis of randomized controlled trials. Psychological Medicine, 51 (8), 1260–1270. doi: 10.1017/S0033291721001641.
• Hoppen, T. H., & Morina, N. (2021). I’d do much better, if only … Counterfactual comparisons related to traumatic life events. Cognition and Emotion, 35 (2), 409–416. doi: 10.1080/02699931.2020.1832967.
• Morina, N., Kip, A., Hoppen, T. H., Priebe, S., & Meyer, T. (2021). A potential impact of physical distancing on physical and mental health. A rapid narrative umbrella review of meta-analyses on the link between social connection and health. BMJ Open, 11:e042335. doi: 10.1136/bmjopen-2020-042335.
• Hoppen, T. H., & Morina, N. (2021). Efficacy of positive psychotherapy in reducing negative and enhancing positive psychological outcomes: a meta-analysis of randomised controlled trials. BMJ Open, 11 (9), e046017. doi: 10.1136/bmjopen-2020-046017.

2020

• Hoppen, T. H., & Morina, N. (2020). Is high-quality of trials associated with lower treatment efficacy? A meta-analysis on the association between study quality and effect sizes of psychological interventions for pediatric PTSD. Clinical Psychology Review, 78 (101855). doi: 10.1016/j.cpr.2020.101855.
• Morina, N., Hoppen, T. H., & Priebe, S. (2020). Out of sight, out of mind: Refugees are just the tip of the iceberg. An illustration using the cases of depression and posttraumatic stress disorder. Frontiers in Psychiatry, 11:179. doi: 10.3389/fpsyt.2020.00179.
• Hoppen, T. H., Heinz-Fischer, I., & Morina, N. (2020). If only… A systematic review and meta-analysis of social, temporal and counterfactual comparative thinking in PTSD. European Journal of Psychotraumatology, 11, 1737453. doi: 10.1080/20008198.2020.1737453.
• Hoppen, T. H., & Morina, N. (2020). Psychotherapie: Praxis, Empirie und Theorie. in Raspe, H., Hofer, H. G., & Krohs, U. (ed.), Praxis und Wissenschaft. Fünf Disziplinen – eine Familie? (pp. 61–87). Brill. doi: 10.30965/9783957437556_004.

2019

• Hoppen, T. H., & Morina, N. (2019). The prevalence of PTSD and major depression in the global population of adult war survivors: A meta-analytically informed estimate in absolute numbers. European Journal of Psychotraumatology, 10 (1), 1578637. doi: 10.1080/20008198.2019.1578637.

2018

• Hoppen, T. H., & Chalder, T. (2018). Childhood adversity as a transdiagnostic risk factor for affective disorders in adulthood: A systematic review focusing on biopsychosocial moderating and mediating variables. Clinical Psychology Review, 65, 81–151. doi: 10.1016/j.cpr.2018.08.002.