The 30-items Maudsley Obsessional-Compulsive Inventory (MOCI) was developed as an instrument for assessing the existence and extend of different obsessional-compulsive complaints by Hodgson & Rachman (1977). MOCI is composed of two major types of complaint, checking and cleaning compulsions, and two minor types, slowness and doubting. Rachman & Hodgson (1980) considered the complaints of checking and cleaning as the representative coping behaviors of prevention and provocation. These types of coping behavior could be observed in daily stressful situation. This study was to explore the Japanese version of MOCI available to evaluate the degree of obsessional-compulsive tendency observed in non-clinical persons. The Japanese version of MOCI was administered to 600 normal students to re-investigate the factor structure of this scale. Principal factor analysis and varimax rotation were adopted to extract the significant factors from 30×30 correlation matrix. Three factors, checking, cleaning and doubting-ruminating were extracted independently, but the complaint of slowness was not found as a significant factor. Additively to explore in their correlations with obsessional-complsive complaints, trait anxiety and time anxiety, MOCI, STAI-T form and TAS were administered to 213 normal students. TAS is composed of three subscales, namely, time confusion, time irritation and time submissiveness. The results were as follows. (1) Checking, cleaning and doubting were positively correlated with trait anxiety, but slowness was negatively correlated. (2) All obsessional-compulsive complaints but slowness were positively correlated with time confusion. Slowness and cleaning were positively correlated with time irritation, and negatively correlated with time submissiveness. These results indicate that slowness and cleaning complaints are somewhat different from other obsessional-compulsive complaints.