The book describes the use of an R-package called confreq (derived from Configural Frequency Analysis). The use of the software package is described and demonstrated with data examples.
Since 2011 Mark Stemmler is a Chair of Psychological Assessment, Quantitative Methods and Forensic Psychology at the Institute of Psychology at the University of Erlangen-Nuremberg, Germany. He received his master’s degree from the Technical University Berlin in 1989 and his PhD from the Pennsylvania State University in 1993. In 2002, he received his postdoctoral lecture qualification (Habilitation) from the University of Erlangen-Nuremberg. From 2007 to 2011 he was a full professor for quantitative methods at the Bielefeld University, Germany. His research interests encompass developmental psychology and methodology. He has worked on longitudinal studies in the US and Germany. His research emphasis on methodology is categorical data analysis.