Jan de Leeuw

Jan de Leeuw (born December 19, 1945) is a Dutch statistician and psychometrician. He is distinguished professor emeritus of statistics and founding chair of the Department of Statistics, University of California, Los Angeles. In addition, he is the founding editor and former editor-in-chief of the Journal of Statistical Software, as well as the former editor-in-chief of the Journal of Multivariate Analysis and the "Journal of Educational and Behavioral Statistics".

Born in Voorburg, De Leeuw attended the HBS-B in Voorburg and Alphen aan den Rijn from 1956 to 1963. He studied at Leiden University, where he received his propedeutic examination psychology summa cum laude in 1964; his candidate examination psychology summa cum laude in 1967; and his doctoral examination psychology summa cum laude in 1969. In 1973 he received his PhD cum laude with a thesis entitled "Canonical Analysis of Categorical Data" advised by John P. van de Geer.

De Leeuw started his academic career as assistant professor in the Department of Data Theory in Leiden University in 1969. He was member of technical staff, Bell Labs, Murray Hill, New Jersey, in 1973–1974. Back in The Netherlands he was professor of data theory, Leiden University, from 1977 to 1987. In 1987 he moved to University of California, Los Angeles, where he became professor of psychology and mathematics, and director of the interdepartmental program in social statistics until 1998. From 1993 to 1998 he was also acting director of the interdivisional program in statistics. From 1998 to 2014 he was professor and chair, Department of Statistics at University of California, Los Angeles. He retired in July 2014.

De Leeuw started as associate editor for Psychometrika (1982–1991); was advisory editor at Computational Statistics Quarterly (1983–1990);associate editor for the Journal of Educational and Behavioral Statistics (1989–1991); editor for the Journal of Educational and Behavioral Statistics (1991–1997); editor for the Journal of Multivariate Analysis (1993–1997); and web editor for Institute of Mathematical Statistics (1996–1999). He is still member of the editorial board of the Journal of Classification (since 1984); member of the advisory board of the Applied Stochastic Models and Data Analysis (since 1985); editor for Advanced Quantitative Techniques in the Social Sciences (since 1989); founding editor and editor-in-chief of the Journal of Statistical Software (1997–2015); editor for the Sage/SRM-Database of Social Research Methodology (since 1996); and editor-in-chief for the Journal of Multivariate Analysis (1997–2015).

De Leeuw was elected Fellow at the Royal Statistical Society in 1984; at the Psychometric Society and at the International Statistical Institute in 1986; at the Royal Netherlands Academy of Arts and Sciences in 1989; and at the Institute of Mathematical Statistics and at the American Statistical Association in 2001. At the Psychometric Society he was trustee in 1985–1986 and president in 1987–1988.

• De Leeuw is the originator of the Albert Gifi team that wrote Nonlinear Multivariate Analysis.In Multidimensional Scaling, Volume 1, Cox and Cox write that "Albert Gifi is the nom de plume of members, past and present, of the Department of Data Theory at the University of Leiden who devised a system of nonlinear multivariate analysis that extends various techniques, such as principal components analysis and canonical correlation analysis."
• De Leeuw is coauthor of Introducing Multilevel Modeling (1998)and co-editor of the "Handbook of Multilevel Analysis" (2009).
• A bibliography of 761 of de Leeuw's writings in the field of data analysis, statistics, and psychometrics from 1965 to 2019, with downloadable pdf's of 653 entries and web links to 100 more, is accessible from his homepage.
• Since his retirement in 2014 De Leeuw has published more than 100 informal papers on Rpubs , on Research Gate., and on his homepage .
• Software development : homals smacof anacor isotone aspect