Reliability and validity of the Chinese version of the depressive cognition scale among the older people
10.3760/cma.j.issn.1674-6554.2016.01.018
- VernacularTitle:中文版抑郁认知量表在老年人群中应用的信效度研究
- Author:
Lina GUO
;
Yongchuang LIU
;
Kun LIU
- Publication Type:Journal Article
- Keywords:
Depression;
Cognition;
Scale;
Reliability;
Validity
- From:
Chinese Journal of Behavioral Medicine and Brain Science
2016;25(1):86-89
- CountryChina
- Language:Chinese
-
Abstract:
Objective To test the reliability and validity of the Chinese Version of the Depressive Cognition Scale (DCS) among the older people.Methods The sample consisted of 570 old people,collected by a demographic questionnaire,the Chinese version of DCS,and the Center for Epidemiological Studies Depression Scale (CES-D),then all the data was analyzed by SPSS 21.0.Results The item-to-total correlation coefficients of DCS ranged from 0.65 to 0.84 (P<0.01),and the average coefficient was 0.77.The content validity index(CVI) was 0.88.The result of exploratory factor analysis (EFA) was that one factor explained 59.72% of the total variances,and the concurrent validity between DCS and CES-D was positive related (r=0.24-0.82,P<0.01).Regarding CES-D as the gold standard,the sensitivity was 84.7% and the specificity was 90.7%.The inter-item correlation coefficients of DCS ranged from 0.40 to 0.73 (P<0.01);the Cronbach α was 0.82,and the retest reliability (intra-class correlation coefficient,ICC) was 0.92 (95%CI=0.86-0.95,P<0.01).Conclusion DCS is proved to be a reliable and valid instrument,and it can be used to assess the depressive cognition and screen the early depressive symptoms of Chinese old adults.