Bachelor of Science, Purdue University, 1960. Master of Science, Syracuse University, 1964. Doctor of Philosophy, Syracuse University, 1968.
Teacher public schools, Evanston, Illinois, 1960-1963. Editor Test Department Harcourt, Brace & World, Incorporated, New York York City, 1967-1970. Research psychologist Harcourt Brace Jovanovich, Inc., 1970-1973, executive editor, 1973-1975.
Assistant director educational measurment division The Psychological Corporation, 1975-1983, director educational measurement and psychometrics Cleveland, 1983-1985, San Antonio, 1986, vice president director measurement division, 1986-1988, senior vice president, 1988-1991, executive vice president, 1991-1997, president, 1997-1999. Consultant, 1999—2002. Associate vice president Educational Testing Service, 2002—2006, vice president, 2006—2008, consultant, since 2008.
Field reader United States Office Education, 1972.
Member National Council on Measurementin Education, American Psychological Association, American Ednl. Research Association Advisory editor Journal of Ednl. Measurement, 1974-1978.