Jackson, Sherri L., 1962- Research methods and statistics : a critical thinking approach / Sherri L. Jackson. - 2nd ed. - Australia: Thomson Wadsworth, 2006. - xviii, 380 p. : ill. ; Includes bibliographical references and index. ISBN: 0534556604 Subjects--Topical Terms: Psychology--Research--Methodology.Psychometrics. LC Class. No.: BF76.5 / .J33