Rasmussenの自我同一性尺度の日本語版の検討 AN EXAMINATION OF THE JAPANESE VERSION OF RASMUSSEN'S EGO IDENTITY SCALE
The purposes of the present study were to examine reliability and validity of Japanese version of Rasmussen's Ego Identity Scale (REIS). REIS, Trait-Anxiety Inventory, Identity Diffusion Scale, and Self-Esteem Scale were administered to 245 university students.Reliability of Rasmussen's Scale were assessed by split-half method and Cronbach's alpha coefficient. REIS were also administered a week later in order to analyze test-retest reliability.Correlations were performed between REIS and other three measures to examine concurrent and criterion-related validity.The results showed that REIS was a reliable and valid measure for Japanese university students. The necessity of future studies using this scale was suggested.