Wolfgang Wiedermann is Associate Professor at the University of Missouri, USA. He received his Ph.D. in Quantitative Psychology from the University of Klagenfurt, Austria. His primary research interests include the development of methods for causal inference, methods to evaluate the causal direction of dependence, and methods for person-oriented research. He has edited books on new developments in statistical methods for dependent data analysis in the social and behavioral sciences (2015), advances in statistical methods for causal inference (2016) and causal direction of dependence (2021). His work appears in leading journals of the field, including Psychological Methods, Multivariate Behavioral Research, Behavior Research Methods, Developmental Psychology, and Development and Psychopathology. Recognitions include the Young Researcher Award 2021 by the Scandinavian Society for Person-Oriented Research.