Welcome to my personal website.

I am a full professor of Artificial Intelligence & Data Theory at the Institute of Psychology of Leiden University.

I studied psychology at the University of Groningen where I received a master degree in Work, Organizational, and Personnel Psychology as well as in Methodology and Statistics.

In 1996 I started as a PhD student in the Data Theory department at Leiden University studying Multidimensional Scaling methodology for transition frequency data under the supervision of Prof. dr. Willem Heiser.

On the 5th of April 2001 I received my PhD (Cum Laude). At that moment I was a Post-doc at the Methodology and Statistics unit of the Psychological Institute, where I became assistant professor in 2002 and associate professor in 2011. In 2014 I became full professor Methodology and Statistics of Psychological Research. In 2022 I was appointed on the chair AI & Data Theory.


Mark de Rooij
Professor of AI & Data Theory
Methodology and Statistics Unit
Institute of Psychology
Leiden University
Rooijm at
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