Ph.D., Stanford University, 1971
Ph.D., University of Michigan, 1967
B.A., University of Pennsylvania, 1966 M.S. in Ed., 1968 Ph.D., 1983
B.A., Oberlin College, 1959 M.Sc., University of Illinois, 1961 Diploma of Education 1st Class, Makerere University, Kampala, Uganda, 1962 Ph.D., Stanford University, 1969
