This study was undertaken to help determine the usefulness of the Minnesota Multiphasic Personality Inventory (MMPI) for providing information regarding a person's object relations. Subjects were 136 college students (56 males, 80 females) ranging in age from 18 to 48. Subjects were administered the Rorschach, the Self Object Scale (SOS), and the MMPI. The Rorschach was scored using Blatt, Brenneis, Schimek, and Glick's (1976a) manual for scoring the level of object relations (Developmental Analysis of the Concept of the Object Scale-DACOS), the SOS scored as Blatt, Chevron, Quinlan, and Wein's manual (1981) directs, and the MMPI scored in the standardized manner using college-age norms. MANOVA's on the SOS and the DACOS resulted in significant effects for sex on MMPI scales 6, 7, and 8. Sex differences on MMPI scales 6 and 4 were obtained for high/low level of object relations on the DACOS. Pearson correlations showed positive correlations for males between level of object relations on the SOS and MMPI scale 5, and negative correlations on MMPI scale 5 for females. For males positive correlations between the DACOS and MMPI scale 4 and negative correlations on MMPI scale 10 were noted. These results were discussed as pertaining to the socialization of males and females. The most puzzling finding was the lack of correlation between the DACOS and the SOS. This was discussed as possibly being a result of the effect of the Rorschach, which measures psychopathology, whereas the SOS may be a purer measure of object relations. The paucity and weakness of the results was attributed to the restricted variance of the population. Implications for future research included obtaining a larger sample from a normal population, establishing clear norms for object eolations measures, obtaining correlations between a measure of current functioning and the object relations measures as a step toward establishing cut-off scores for groups on the measures, and further exploration of the weights in the scoring categories "of Blatt's DACOS scale.