Linguistic and Cultural Validation of the Diabetic Retinopathy Knowledge and Attitudes Scale (DRKA) in a Chinese Population.

ABSTRACT:

Purpose

To linguistically and culturally adapt the 31-item Singaporean Diabetic Retinopathy Knowledge and Attitudes (DRKA) questionnaire for a Chinese population and assess its reliability and validity using classical and modern psychometric theory.

Methods

A total of 230 patients with diabetic retinopathy (DR) were recruited, and of these, 202 valid responses were analyzed. Rasch analysis and classical test theory (CTT) methods were used to analyze the fit statistics of the Knowledge (n = 22 items) and Attitudes (n = 9 items) scales, including the functionality of the response categories, fit statistics, person and item reliability and separation, unidimensionality, targeting, differential item functioning (DIF), internal consistency, convergent validity, and known-group va

SUBMITTER: Jiang W 

PROVIDER: S-EPMC10297779 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature