Ken Bollen is the Henry Rudolph Immerwahr Distinguished Professor in the Department of Psychology and Neuroscience and Department of Sociology at UNC at Chapel Hill.  He is a faculty member in the Quantitative Psychology Program in the Thurstone Psychometric Laboratory.  He also is part of the Methods Unit and a Fellow of the Carolina Population Center.  Since 1980 he has been an instructor in the ICPSR Summer Program in Quantitative Methods of Social Research. Bollen’s primary areas of statistical research are in structural equation models, longitudinal methods, and latent growth curve models. More details are available in his CV.