Abstract:

Objective To translate the English version of the form C of the Multidimensional Health Locus of Control（MHLC-C） into Chinese, and to test the validity and reliability of the Chinese version of the MHLC-C. Methods After obtaining the authorization of the original author，MHLC-C scale was translated back and forward according to the Brislin scale translation principle. Two rounds of expert consultation and pre-survey were used to complete the cultural adjustment. A total of 321 patients with type 2 diabetes hospitalized in the Department of Endocrinology of a three Grade A hospitals were selected by convenience sampling for item analysis，reliability analysis and validity analysis，thirty patients were randomly selected for retest two weeks after the first survey to evaluate the retest validity. Results The Chinese version MHLC-C has 4 sub-scales and 18 items. The mean content validity index was 0.960 at the scale level，and ranged from 0.780 to 1.000 at the entry level. Exploratory factor analysis extracted four common factors named internal，chance，doctors and other people. Four factors were extracted by exploratory factor analysis，and it could explain 73.079% of the total variance. Then，the confirmatory factor analysis was conducted according to four factors，and the results revealed a good model fit（χ²/df=1.560，RMSEA=0.052，CFI=0.945，GFI=0.901，AGFI=0.876，NFI=0.862，IFI=0.946，TLI=0.938）. The Cronbach’s α coefficient was 0.825 for the total scale，and the correlation of test-retest reliability was 0.940. Conclusion The Chinese version of the MLHC-C has good validity and reliability，which can be used as a tool to assess the healthy locus of control in patients with type 2 diabetes.

Key words: Form C of the Multidimensional Health Locus of Control, Reliability, Validity, Diabetes mellitus, Type 2