ECR-R асуулгын Монгол хувилбар: Оюутнуудын түүвэр дэх сэтгэц хэмжил зүйн шинжилгээ

This study examined the psychometric properties of the Mongolian version of the Experiences in Close Relationships-Revised (ECR-R), which assesses adult attachment anxiety and avoidance. A total of 551 university students (aged 18-36; 81.5% female; M = 20.6, SD = 2.64) from four universities in Ulaanbaatar participated voluntarily, and 359 completed a 14-day retest. The questionnaire was translated into Mongolian following international guidelines, including forward and back translation. Internal consistency was excellent (Cronbach’s α = .950 for the total scale, .900 for Anxiety, .891 for Avoidance), as was test–retest reliability (ICC = .946 and .928, respectively). The scale-level content validity index was 0.88. Exploratory factor analysis yielded a three-factor structure, and items A9r, A11r, A16, and A21 did not load adequately. In confirmatory factor analysis, the best-fitting 24-item model showed unsatisfactory fit (CFI = 0.816, TLI = 0.800, RMSEA = 0.086, SRMR = 0.078), so the hypothesized two-dimensional structure was not fully supported. The Mongolian ECR-R demonstrates high reliability and acceptable content validity, but its factor structure requires further refinement, including bifactor and culturally adapted models, in more diverse samples.