A Consideration of Clinical Characteristics of Non-Clinical Hoarding among Japanese Adolescents

Abstract

The purpose of this study was to develop the Japanese version of the Saving Inventory-Revised (SI-R), and to examine the clinical characteristics of non-clinical hoarding among Japanese adolescents. A sample was composed of 365 undergraduate students and vocational college students. Confirmatory factor analysis indicated that a three-factor structure was the acceptable fit for the data. The Japanese version of the SI-R was considered to have good internal consistency, test-retest reliability, and validity. Also, non-clinical hoarding group and healthy control group were divided by U.S. cut-off score (SI-R total over/under 41) were compared. As a result, scores on clutter severity evaluated by a picture rating scale measuring the clutter of rooms, obsessive compulsive symptoms, trait-anxiety, depression, and impairment were significantly higher in non-clinical hoarding group. These results showed clinical characteristics of non-clinical hoarding among Japanese adolescents.