Reliability and validity of Chinese revision of anxiety sensitivity index-revised among patients with anxiety disorders

Abstract

Objective To evaluate the reliability and validity of the Chinese version of the anxiety sensitivity index-revised(ASI-CR) among patients with anxiety disorders.Methods A total of 68 patients with anxiety disorders were interviewed using anxiety sensitivity index-revised(ASI-R),trait anxiety inventory(T-AI),Hamilton anxiety scale(HAMA) and ASI-CR;the reliability and validity of ASI-CR were examined.Results Internal consistency of ASI-CR and each factor was 0.77-0.89 and the split-half reliability was 0.67-0.88.The internal correlation coefficient between factors was 0.51-0.65,the correlation coefficient between factors and the total score was 0.83-0.89,and internal correlation coefficient among factors was 0.60-0.90.The correlation coefficient between the total score and factor scores of ASI-CR and total score of ASI-R was 0.76-0.97,and the correlation coefficient between factor scores of ASI-CR and corresponding factor score of ASI-R was 0.78-0.97.The total score and two factor(physical concern and cognitive concern) score of ASI-CR in anxiety patients were significantly higher than the norm(P0.01).Exploratory factor analysis revealed that the three lower-order ASI-CR factors contributed 65.06% of the total variance.Factor loading of items was 0.51-0.88,but the items were unevenly distributed among factors.Two items had low loading to cognitive concern factor(0.22,0.48).Conclusion The ASI-CR displays satisfactory reliability,criterion validity and content validity among anxiety patients,but further research is needed to improve its structural validity.