![[ Visit Client Website ]](images/banner.gif)
Learning Objective 1: The leaner will be able to understand the process and psychometric properties of the DSR-SCA scale.
Learning Objective 2: The learner will be able to gain insight in applying this scale in to research and practice.
(DSR-SCA Scale)
ABSTRACT
Background: A scale for measuring the capability or self-care agency of lowering salt consumption in older adults with hypertension did not exist.
Objectives: To develop and validate the Dietary Sodium Reduction Self-Care Agency scale (DSR-SCA Scale)
Methods: A 24-item scale was developed and tested in 242 hypertensive older adults. Exploratory factor analysis using principal components extraction, Rasch analysis, and internal consistency reliability were used to evaluate the DSR-SCA scale.
Results: Principal components extraction with Varimax rotation was employed. An 11-item DSR-SCA scale with three factor loadings which measure proficiency, persuasiveness, and resourcefulness was finalized after found to meet the criteria of a minimal factor loading of 0.40, Eigenvalues were 2.20, 1.73, and 1.64. The Kaiser-Meyer-Olkin was 0.80, and Bartlet’s test was significant (χ2 (df=55) 403.71, p<0.0001). Total variance explained accounted for 55.53%. Infit and outfit mean square (MNSQ) ranged from 0.88 to 1.18 and infit and outfit standardized mean square (ZSTD) was -1.8 to 1.7. The 11-item scale demonstrated internal consistency with a Cronbach’s alpha coefficient of 0.73 for the total scale.
Discussion: The results showed that the DSR-SCA scale consisted of three factors which have an adequate construct validity and reliability to measure power components and enabling capability. This scale is short, easy-to-complete, and useful for measuring salt reduction self-care agency in hypertensive older adults.
See more of: Oral Paper & Poster: Science Sessions