Cohen, Ronald Jay. , Psychological testing and assessment : an introduction to tests and measurement / Ronald Jay Cohen, Mark E. Swerdlik and Edward D. Sturman. - 8th ed. - 1 volume (various pagings) : illustrations ; 27 cm. ISBN: 9780078035302 0078035309 Subjects--Topical Terms: Psychological tests.Psychometrics. LC Class. No.: BF176 / .C63 2013