Causal inference in experiments and observational studies.
Inference in sample surveys with nonresponse and in missing data problems.
Application of Bayesian and empirical Bayesian techniques.
Developing and applying statistical models to data in a variety of scientific disciplines.
1970: Ph.D. in Statistics - Harvard University
1966: M.A. in Computer Science - Harvard University
1965: A.B. in Psychology - Princeton University
· 1984 - 2018: Professor, Department of Statistics, Harvard University (retired)
· 1985 - 1994, 2000 - 2004: Chairman, Department of Statistics, Harvard University
· 1999 - 2001: Fellow in Theoretical and Applied Statistics, National Bureau of Economic Research, Cambridge, MA
· 1983 - present: Research Associate, NORC, Chicago1982 - 1984: Professor, Department of Statistics and Department of Education, The University of Chicago