[Evaluation of the validity and reliability of the Chinese version of Glasgow Benefit Inventory]

Abstract

Objective:To evaluate the validity and reliability of the Chinese version of Glasgow Benefit Inventory. Method:Using the Chinese version of Glasgow benefit inventory（C-GBI） to evaluate how the otorhinolaryngological（ORL） interventions have altered the quality of life of 98 cases of ORL department and analyze the validity and reliability of the test results, which is assessed by content validity, construct validity, internal consistency and split-half reliability. Result:The results show that the C-GBI has 3 dimensions and 18 items. The content validity of C-GBI is acceptable. Three factors were extracted by exploratory factor analysis. Since item No. 10 matched Factor 3 in error, we decided to delete it after discussions. After this adjustment, exploratory factor analysis yielded with an three-factor solution, explaining 70.32% of the total variance and the loading coefficient for each of the 17 C-GBI questions is above 0.4. The results also show good convergent validity and discriminant validity. Reliability using Cronbach α, Spearman-Brown and Guttman Split-Half was higher than 0.6 for total score and its three subscales of the adjusted C-GBI. Conclusion:After deleting one item of the C-GBI which matched factor in error, we found that the adjusted C-GBI shows good reliability and validity. It can help Chinese clinicians evaluate how the ORL interventions have altered the health status of patients.

Keywords: Glasgow Benefit Inventory; intervention; reliability; validity.