Development and testing of the Diabetes Self-management Instrument: a confirmatory analysis.
The purpose of this study was to develop and psychometrically test a new instrument for measuring self-management of adults with type 2 diabetes. Data were collected from 634 diabetic adults recruited from three teaching hospitals in Taiwan. Construct validity was determined by confirmatory factor analysis (CFA). Tests of internal consistency and test-retest were used to assess the reliability of the diabetes self-management instrument (DSMI). Initial results of CFA did not fully support the proposed five-factor model. After the model was modified, the fit indices indicated that this model fits the data best. This model was further cross validated in a second sample. Cronbach's alpha coefficient of the DSMI total scale was .94. The test-retest correlations for the DSMI total scale were acceptable (r = .73, p < .01).
Lin
Chiu-Chu
CC
Kaohsiung Medical University, College of Nursing, Kaohsiung, Taiwan.
Anderson
Robert M
RM
Chang
Chao-Sung
CS
Hagerty
Bonnie M
BM
Loveland-Cherry
Carol J
CJ
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001294:Attitude to Health / Q000208:ethnology*; D016009:Chi-Square Distribution; D003924:Diabetes Mellitus, Type 2 / Q000208:ethnology / Q000517:prevention & control; D005163:Factor Analysis, Statistical; D005260:Female; D017144:Focus Groups; D006801:Humans; D008297:Male; D008875:Middle Aged; D008960:Models, Psychological; D009730:Nursing Assessment / Q000379:methods; D015403:Nursing Evaluation Research; D015404:Nursing Methodology Research; D010865:Pilot Projects; D011594:Psychometrics; D012648:Self Care / Q000379:methods / Q000523:psychology; D020377:Self Efficacy; D011795:Surveys and Questionnaires / Q000592:standards*; D013624:Taiwan; D014175:Translating