Kaplan, Robert M. Psychological testing : principles, applications and issues / Robert M. Kaplan - 6th ed. - USA : Thomson Wadsworth , c2005. - xxi, 745 p. : ill. ; 24 cm. Includes bibliographical references and indexes. ISBN: 0-534-63306-4. Subjects--Topical Terms: Psychological tests. Dewey Class. No.: Circ. 150.287 K17p 2005