Psychometric validation of the self-efficacy for restricting dietary salt in hemodialysis scale

Maya N. Clark-Cutaia, Dianxu Ren, Leslie A. Hoffman, Linda Snetselaar, Mary Ann Sevick

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)384-391
Number of pages8
JournalTopics in Clinical Nutrition
Volume28
Issue number4
DOIs
StatePublished - Oct 2013

Keywords

  • consistency
  • construct validity
  • convergent validity
  • dietary sodium intake
  • fluid restriction
  • hemodialysis
  • psychometrics

ASJC Scopus subject areas

  • Nutrition and Dietetics

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