User's guide for the multitrait analysis program (MAP) / Ron D. Hays [and three others]. - xi, 26 pages ; 28 cm. - A Rand note ; N-2786-RC . - Rand note ; N-2786-RC . Includes bibliographical references. ISBN: Hadiah Subjects--Topical Terms: Scale analysis (Psychology)--Methodology.Scale analysis (Psychology)--Computer programs.