Mathias Harrer

Mathias Harrer is an Assistant Professor at the Department of Clinical Psychology, part of the Faculty of Behavioural and Movement Sciences at Vrije Universiteit Amsterdam. He is also affiliated with the APH - Mental Health research group. His work focuses on meta-analyses, systematic reviews, and psychotherapy efficacy across mental health disorders, particularly depression and anxiety. Dr. Harrer collaborates internationally and has contributed to over 55 peer-reviewed publications, emphasizing methodological rigor in mental health research.

Research Interests: Harrer’s primary areas include

• Meta-analytic methodology
• Psychotherapy efficacy
• Depression treatment
• Systematic review synthesis
• Randomized controlled trials

His work often examines geographic and demographic factors influencing treatment outcomes, as well as innovative digital interventions.

Collaborations: He leads global collaborations, with recent projects involving researchers from Europe, Asia, and North America. His research bridges clinical practice and statistical methodology, addressing gaps in personalized mental healthcare.