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Psychometric Validation of the Self-Efficacy for Restricting Dietary Salt in Hemodialysis Scale
Journal article   Open access   Peer reviewed

Psychometric Validation of the Self-Efficacy for Restricting Dietary Salt in Hemodialysis Scale

Maya N Clark-Cutaia, Dianxu Ren, Leslie A Hoffman, Linda Snetselaar and Mary Ann Sevick
Topics in clinical nutrition, Vol.28(4), pp.384-391
2013
DOI: 10.1097/01.TIN.0000437407.76867.65
PMCID: PMC4514520
PMID: 26213444
url
https://doi.org/10.1097/01.TIN.0000437407.76867.65View
Published (Version of record) Open Access

Abstract

The development and progression of left ventricular hypertrophy is a consequence of multiple comorbid conditions associated with end-stage renal disease and large variations in interdialytic weight gains. The literature suggests that dietary sodium restriction alone significantly reduces interdialytic weight gains. A total of 124 hemodialysis participants in an ongoing randomized control trial participated in the validation in which psychometric properties of a self-efficacy survey were a secondary analysis. We evaluated the internal consistency, construct validity, and convergent validity of the instrument. The overall Cronbach α was 0.93. Three factors extracted explain 67.8% of the variance of the white and African American participants. The Self-Efficacy Survey has adequate internal consistency and construct and convergent validity. Future research is needed to evaluate the stability and discriminant validity of the instrument.
construct validity fluid restriction hemodialysis psychometrics convergent validity dietary sodium intake consistency

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