W. Grant Dahlstrom is professor of psychology at the University of North Carolina, Chapel Hill. He is co-author with Leona E. Dahlstrom of Basic Readings of the MMPI: A New Selection on Personality Measurement (Minnesota, 1980).
David Lachar is director of psychology and the clinical psychology residency program at the Institute of Behavioral Medicine (Good Samaritan Medical Center) in Phoenix and is author of The MMPI: Clinical Assessment and Automated Interpretation (1974) and other books on child and adolescent personality.
Leona E. Dahlstrom is a clinical psychologist and co-author with W. Grant Dahlstrom and George S. Welsh of the two-volume MMPI Handbook (Minnesota, 1972, 1975).