Sinhala version of dementia knowledge assessment scale(SI-DKAS):a validation cross-sectional survey among nursing students
Thilanka Jagoda
Sarath Rathnayake
Abstract：Objective: To translate and adapt the dementia knowledge assessment scale (DKAS) into Sinhala version and to evaluate its psychometric properties among nursing students.
Methods: A cross-sectional validation study was conducted in two phases: (i) translation and adaptation and (ii) evaluating psychometric properties (N=394 nursing students).
Results: The DKAS was adapted to the Sinhala (Si-DKAS) version, and the content validity index (CVI=0.9) was satisfactory. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) resulted in an 18-item Si-DKAS with a four-factor model: "care considerations," "causes and characteristics of dementia," "health promotion," and "misconceptions about dementia." The model fit indices were suboptimal (comparative fix index [CFI]=0.809 and Turker-Lewis index [TLI]=0.773), and some indices were acceptable (standardized root-mean-squared residual [SRMR]=0.040 and root-mean-squared error of approximation [RMSEA]=0.053). Internal consistency (0.7) and test-retest correlation (0.9) were acceptable. Discriminant validity was confirmed by knowledge score differences based on academic years.
Conclusions: This is a valid and reliable tool for assessing knowledge of dementia among Sinhala-speaking nursing students.
Keywords：dementiaDementia Knowledge Assessment Scalenursing studentsSinhalatranslation and adaptationvalidation
Publication Date：2025-09-20
Online Publishing Date：2025-10-13(First online date of this platform, not the publication date of the document)
Pages：12( 333-344 )