体象量表的信度和效度检验

Reliability and Validity of Body Image Rating Scale

目的 :检验自编体象障碍自评量表的信度和效度。方法 :185名被试参加了测试 ,其中正常人 115名 ,体象障碍患者 70名 ,另有 10 0名学生被试前后测试两次以评定重测信度。计算分半信度 ,内在一致性 ;量表效度 ,项目效度 ,并比较了患者组与正常组因子得分 ,同时进行了因子得分的性别比较。结果 :重测信度为 0 72 0 ,分半信度达 0 999,因子之间的相关系数达 0 7以上 ,Cohranbachα系数为 0 96 5 ;量表的效度系数是 0 6 84,项目的效度系数达 0 6以上。结论 :此体象量表内在一致性良好 ,信度和效度较好。敏感性和特异性较高 ,男女的量表和因子得分无显著差异。

Objective: To test the reliability and validity of self-made BIRS (body image rating scale). Method: The scale was administrated to 185 subjects including 70 patients with body dysmorphic disorder (BDD) and 115 normal control. The internal consistency, test-retest reliability and validity were assessed in 100 subjects. Results: Correlation coefficients between factors were 0.7 or above. Cohranbach ( 0.965. Validity coefficient was 0.684 with that of each item was over 0.6. The test-retest reliability reached 0.72 and Spearman-Brown semi-structure reliability came to 0.999. Conclusion: Good internal consistency, reliability and validity were obtained. There was no difference between boy and girl in total score as well as factor scores.