ABSTRACT
Lee J. Cronbach begins his contribution to the History of Psychology in Autobiography by saying: Psychology caught early. Cronbach completed his Ph.D., at Chicago in 1942 profiting from courses by Ralph Tyler and serving for a couple of years as research assistant on the Eight-Year Study headed by Tyler. The contributions that Cronbach made to the theory and methodology in educational measurement are reflected in the fact that he is strongly represented in the International Encyclopaedia of Education. Right from the outset as a researcher in the behavioural sciences, Cronbach specialized in educational measurement and psychometric problems. The background was the model about selection and placement of individuals that Cronbach had developed with Gleser in the book about the use of decisions-theory. Cronbach developed an evaluation course in which each student planned an evaluation. Lee Cronbach has made a truly outstanding contribution to theory and methodology in educational measurement and psychology.
