Development and Validation of the Dietary Sodium Reduction Self-Care Agency Scale (DSR-SCA Scale)

2.50
Hdl Handle:
http://hdl.handle.net/10755/202176
Type:
Presentation
Title:
Development and Validation of the Dietary Sodium Reduction Self-Care Agency Scale (DSR-SCA Scale)
Abstract:
(41st Biennial Convention) Development and Validation of the Dietary Sodium Reduction Self-Care Agency Scale  (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 (?2 (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.
Keywords:
Rasch analysis; Factor analysis; Self-care agency
Repository Posting Date:
11-Jan-2012
Date of Publication:
4-Jan-2012
Sponsors:
Sigma Theta Tau International

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleDevelopment and Validation of the Dietary Sodium Reduction Self-Care Agency Scale (DSR-SCA Scale)en_GB
dc.identifier.urihttp://hdl.handle.net/10755/202176-
dc.description.abstract(41st Biennial Convention) Development and Validation of the Dietary Sodium Reduction Self-Care Agency Scale  (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 (?2 (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.en_GB
dc.subjectRasch analysisen_GB
dc.subjectFactor analysisen_GB
dc.subjectSelf-care agencyen_GB
dc.date.available2012-01-11T11:14:07Z-
dc.date.issued2012-01-04en_GB
dc.date.accessioned2012-01-11T11:14:07Z-
dc.description.sponsorshipSigma Theta Tau Internationalen_GB
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