Abstract
Body Image Concern Inventory (BICI) is a brief and comprehensive self-report measure that is designed to assess the symptoms of body dysmorphic disorder. It is used in various countries. The Japanese version of BICI (J-BICI) has been developed. Although it had good reliability and validity, the factor structure of the J-BICI was inconsistent with previous studies. On the other hand, it was problematic that participants in some previous studies were almost all female. The purpose of this study was to evaluate the factor structure of the J-BICI controlling for sex difference. 1227 undergraduate students (709 males [57.8%], 515 females [42.2%]) filled out the J-BICI. Multi-group confirmatory factor analysis revealed that the J-BICI had three interpretable factors: Safety Behaviors for one's own appearance flaws(SB), Avoidant Behaviors from one's own appearance flaws (AB), and Negative Evaluation for one's own appearance (NE). This three factors model was also common in both males and females. In addition, it was shown that these three factors had good internal consistency. These results indicated that three factors model of the J-BICI was the most interpretable and was not affected by sex of the participant.
