Axel MayerView profile
Professor
Prof. Dr. Axel Mayer is a Professor of Psychological Methods and Evaluation at the Faculty of Psychology and Sports Science, University of Bielefeld. His research focuses on advanced statistical modeling for longitudinal data, causal mediation analysis, and developing user-friendly statistical software packages like lsttheory and EffectLiteR . He investigates intervention effectiveness in psychotherapy and health contexts, particularly fatigue in students and cancer survivors, and contributes to latent state-trait models for experience sampling data. Methodological Expertise: Latent growth curve modeling, causal mediation, structural equation modeling Applied Research: Health-related quality of life, educational development, stress response validation Key projects include involvement in the interdisciplinary InChangE initiative studying individualization processes across disciplines, and contributions to the Deutsche Hodgkin-Studiengruppe cancer fatigue research. His recent publications emphasize software tutorials and comparative studies in mental health, education, and public health interventions. Current trends show focus on digital mental health interventions , cross-cultural comparisons , and ecological momentary assessment methodologies . He actively develops R packages for advanced statistical techniques and investigates mediators in clustered trial designs. Axel Mayer serves as Pro-Dean for Research and chairs committees at Bielefeld University. He's President of the European Association of Methodology (2018-2021) and member of the Psychometric Society.







