The Minnesota Multiphasic Personality Inventory admission scores of 139 inmates of the Iowa Women's Reformatory were analyzed in order to determine the MMPI characteristics of a group of female prison inmates. The mean scores on each of the scales were computed and a mean profile determined. In addition each of the 139 test protocols was coded according to the Total (Welsh) coding system and an analysis made by noting the fre quency of appearance of each scale as one of the first three or last three digits in these coded profiles.