Gunnar Lemmer

Gunnar Lemmer is a Researcher at the Philipps-Universität Marburg in the Faculty of Psychology and Psychologische Methodenlehre department (since 2015), with a Vertretungsprofessur (visiting professorship) in Psychological Methods since 2018. He is affiliated with professional societies including the German Psychological Society (DGPs), American Psychological Association (APA), and the Society for Personality and Social Psychology (SPSP).

• Education: Dr. rer. nat. ("Summa cum laude") in Psychology

His research focuses on intergroup relations, aggression and violence, moral and justice, meta-analysis, and methodological innovations in social psychology. His work spans empirical validation of analytical techniques, large-scale intervention evaluations, and theoretical contributions to mediation analysis.

Lemmer’s peer-reviewed publications (2009–2019) demonstrate expertise in statistical mediation, prejudice reduction, psychometric validation, and meta-analytic methods. He has contributed to domains like chronic pain treatment, functional somatic syndromes, and preventive programs for children of mentally ill parents.

Scientific Awards:

• Dr. rer. nat. ("Summa cum laude")

Lemmer’s applied work includes external evaluations for projects like DB BahnPark GmbH’s anti-parking campaigns, the VIP-School outreach program for immigrant families, and the PiT-Hessen violence prevention initiative. He teaches courses in statistics, multivariate methods, experimental design, and critical reading of scientific work.