Clinical Researches
Reliability and validity of the Chinese version of the Rowland Universal Dementia Assessment Scale
Wang Feng, Wang Lina, Hong Li, Ge Chenxi, Liu Xiaoshen, Zhou Yanru, Cai Yaxiu, Zhang Chen, Qian Guoying, Zhao Xia, Zhen Xueting, Huang Xiaoqiong
Published 2021-06-05
Cite as Chin J Psychiatry, 2021, 54(3): 197-203. DOI: 10.3760/cma.j.cn113661-20200815-00366
Abstract
ObjectiveTo test the reliability and validity of the Chinese version of the Rowland Universal Dementia Assessment Scale (RUDAS) among patients with dementia in China.
MethodsAll participants were recruited from a psychiatric hospital, two old people′s homes and three community mental health centers in Huzhou city. Convenience sampling method was used. All participants were tested by the Chinese version of RUDAS and The Mini-Mental State Examination (MMSE). Cronbach α coefficient and retest reliability were used for reliability test. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used for validity test. The criterion validity of MMSE and Chinese version of RUDAS was tested by Pearson correlation analysis.
ResultsEFA extracted 6 factors and factor loadings of each item ranged from 0.594 to 0.960, which contributed to 62.584% variance totally. Six factors were identified, namely, visual-spatial orientation, imitation and judgment, visual structure, delayed recall, linguistic accuracy, and linguistic fluency. Compared with the original scale, the dimension of verbal communication showed reduced dimension. In the CFA, χ2/df=1.031, GFI=0.882, AGFI=0.853, CFI=0.996, TLI=0.996, RMSEA=0.014, all the indicators were in adaption standard range. The Cronbach α coefficient was 0.793, and the Cronbach α coefficients for six dimensions ranged from 0.503 to 0. 930.The test-retest reliability for the Chinese version of RUDAS was 0.91.
ConclusionThe Chinese version of RUDAS showed satisfactory psychometric properties in dementia screening, which can provide guidance and reference for further diagnostic research and application practice of this scale.
Key words:
Dementia; Rowland Universal Dementia Assessment Scale; Reliability; Validity
Contributor Information
Wang Feng
School of Medical, Huzhou University, Huzhou 313000, China
Wang Lina
School of Medical, Huzhou University, Huzhou 313000, China
Hong Li
Lezhi College, Beijing 100600, China
Ge Chenxi
School of Medical, Huzhou University, Huzhou 313000, China
Liu Xiaoshen
School of Medical, Huzhou University, Huzhou 313000, China
Zhou Yanru
School of Medical, Huzhou University, Huzhou 313000, China
Cai Yaxiu
School of Medical, Huzhou University, Huzhou 313000, China
Zhang Chen
Huzhou Binhu Community Health Service Center, Huzhou 313000, China
Qian Guoying
Huzhou Third People′s Hospital, Huzhou 313000, China
Zhao Xia
Suzhou Guangji Hospital, Suzhou 215000, China
Zhen Xueting
School of Medical, Huzhou University, Huzhou 313000, China
Huang Xiaoqiong
Department of Neurology, Dongguan People′s Hospital Affiliated to Southern Medical University, Dongguan 523000, China
