Aiken, Lewis R., 1931- Psychological testing and assessment / Lewis R. Aiken. - 8th ed. - Boston : Allyn and Bacon, c1994. - xii, 540 p. : ill. ; 25 cm. Includes bibliographical references and indexes. ISBN: 0205137822 LCCN: 93021509 Subjects--Topical Terms: Psychological tests