Thorndike, Robert M. Correlational procedures for research / Robert M. Thorndike. - New York : Gardner Press ; distributed by Halsted Press, c1978. - xi, 340 p. : ill. ; 24 cm. Includes index. Bibliography: p. 331-337. Bivariate relationships; External factor analysis; Internal factor analysis eng ISBN: 0470150904 TZS 274/= Subjects--Topical Terms: Correlation (Statistics) Dewey Class. No.: 519.537 THO