Julio M. SingerJulio M. Singer is a Professor at the Department of Statistics, University of São Paulo, Brazil, and is the co-director of the university's Center for Applied Statistics. Professor Singer is the co-author of books on categorical data and large sampletheory and has publications in both methodological and applications-oriented journals. He was the 1993 James E. Grizzle Distinguished Alumnus in Biostatistics from the University of North Carolina at Chapel Hill. He supervised several graduate students and contributed to the development of the doctoral program in statistics at the University of São Paulo, Brazil. Read More Read Less