Cronbach, Lee Joseph, 1916- Educational psychology / [By] Lee J. Cronbach ; In consultation with Ernest R. Hilgard and Willard B. Spalding. - 2nd ed. - New York : Harcourt, Brace & World, [1963]. - 706 p. : ill. ; 24 cm. Subjects--Topical Terms: Educational psychology Dewey Class. No.: 370.15