ポジティブボディイメージスキーマ尺度の開発

抄録

This study developed the Positive Body Image Schemas Inventory (PBISI). Study 1 examined the factor structure and internal consistency among 391 respondents aged between 18 and 59. Study 2 examined test-retest reliability, minimal detectable change, construct validity, and sex differences among 239 respondents aged between 18 and 59. Further, Study 3 investigated construct validity among 372 respondents aged between 18 and 34. The results of Study 1 indicated that the PBISI comprises 17 items with two factors, “Acceptance” and “Release,” and has good internal consistency with similar psychometric properties regardless of respondents’ sex or age. The results of Study 2 indicated that the test-retest reliability of the PBISI is acceptable. The score for the total inventory and the Release factor was significantly higher among men than among women, with a change of 1.8 points or more in the total score representing a meaningful change. The results of Study 3 supported the construct validity of the PBISI. Overall, this study made it possible to measure schemas that predict positive body image and factors that generate and maintain positive body image.