改訂版楽観性尺度（the revised Life Orientation Test）の日本語版の検討

抄録

The purpose of this study is two-fold; (1) to translate the revised Life Orientation Test (LOT-R) into Japanese and to investigate its internal consistency and test-retest reliability, (2) to test the factor structure of the LOT-R (one-factor model versus two-factor model) by conducting confirmatory factor analyses. Data from 619 undergraduates were analyzed to investigate the internal consistency and factor structure, and data from 220 undergraduates were analyzed to examining the test-retest reliability. Both internal consistency and test-retest reliability were confirmed; Cronbach's alpha coefficient and the test-retest reliability coefficient were .62 and .84, respectively. The confirmatory factor analyses supported the two-factor model rather than the one-factor model. Cultural differences between the East and the West in the factor structure of the LOT-R were discussed.