Reliability and Validity of Body Image Rating Scale / 中国心理卫生杂志

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.