1. Methodological concepts in cross-cultural research; 2. Theoretical background; 3. Methods and design; 4. Analysis; 5. Design and analysis of eight common kinds of cross-cultural studies; 6. Conclusions.

Fons J. R. van de Vijver (1952-2019) held a chair in cross-cultural psychology at Tilburg University, the Netherlands, and extraordinary chair positions at North-West University, South Africa, and the University of Queensland, Australia. One of the most frequently cited cross-cultural psychologists worldwide, he also served as president of the International Association for Cross-Cultural Psychology and the European Association of Psychological Assessment.