|In 2001, SSI instituted an Academic Advisory Board to provide management with counsel in matters
such as the development of its current products, new products, or other undertakings. SSI staff is encouraged
to explore the possibilities of research and development with board members (or associates) that is of
||Tony Bryk is Professor of Urban Education and Sociology at the University of
Chicago, Senior Director of the Consortium on Chicago School Research, and Director of the Center for School
Improvement at the University of Chicago. His research interests include: Analysis of Multilevel Data;
Research on School Organization and its Effects; Socio-Political Organization of Applied Social Science.
He is a co-author of the HLM software program.
||Robert Cudeck is Professor in the Department of Psychology at the University of
Minnesota - Twin Cities. His major activities of the last few years are in the study of statistical issues
in factor analysis, and the development of efficient computational approaches of nonlinear mixed-effects
||Karl Joreskog is Professor Emeritus at Uppsala University (Sweden), Professor
at the Norwegian School of Economics and Business Administration in Bergen (Norway) and Professor at the
Norwegian School of Management in Oslo (Norway). His research interests include: multivariate analysis,
factor analysis, covariance structure analysis, structural equation models, and statistical applications
in behavioral and social sciences. Together with Professor Dag Sorbom, he developed the LISREL model and
the LISREL computer program.
||Steve Raudenbush is Professor at the Department of Educational Studies, School
of Education, University of Michigan, and Senior Research Scientist at the Survey Research Center. His
research interests include: analysis of multilevel data; methods for studying psychological change within
schools, classrooms, and families. His focus is on building into statistical models the fact that children
are clustered into social settings rather than as solitary individuals. The HLM program that he co-authored
implements these ideas.
||Dag Sorbom teaches statistics at the University of Uppsala. His research interests
include: covariance structure analysis and structural equation models, especially multiple-group problems.
Together with Professor Karl Joreskog, he developed the LISREL computer program.