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 a Fellow of the Carolina Population Center.  Bollen’s primary areas of statistical research are structural equation models, longitudinal methods, and model implied instrumental variables. More details are available in his CV.