The purposes of the present study were to develop the Japanese version of the Social Problem-Solving Inventory-Revised (SPSI-R) and to investigate its reliability and validity. The Japanese version of the Revised Inventory was administered to a community sample (863 undergraduate students, mean age=20.6±2.8 years; 210 adults, mean age=43.4±14.1 years). Confirmatory factor analysis revealed that the Japanese version of the Social Problem-Solving Inventory-Revised had a 5-factor structure, including "Positive Problem Orientation," "Negative Problem Orientation," "Rational Problem Solving," "Impulsivity/Carelessness Style," and "Avoidance Style." The Japanese version of the Inventory showed adequate internal consist-ency and concurrent validity, and moderate test-retest stability. A clinical sample (46 psychiatric outpatients, mean age=35.1±9.4 years) scored lower on Positive Problem Orientation, higher on Negative Problem Orientation, and lower on general problem-solving skills than did the community sample.
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