Schweigert, Wendy A. Research methods in psychology : a handbook / Wendy A. Schweigert. - 3rd ed. - Long Grove, Ill. : Waveland Press, c2012. - xiii, 353 p. : ill. ; 23 cm. Includes bibliographical references (p. 337-343) and index. ISBN: 9789384007225 Subjects--Topical Terms: Psychology--Research--Methodology.Psychometrics. LC Class. No.: BF76.5 / .S338 2017