Key result
The Self-Efficacy for Restricting Dietary Salt in Hemodialysis Scale demonstrated adequate internal consistency (overall Cronbach α = 0.93) and construct and convergent validity.
RCT (n=124)
The Self-Efficacy for Restricting Dietary Salt in Hemodialysis Scale is a valid and reliable instrument with adequate internal consistency and construct validity.
Facilitates measurement of salt restriction self-efficacy in hemodialysis research; leaves open its role in routine clinical practice.
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.
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Clark‐Cutaia et al. (2013) conducted an RCT in End-stage renal disease requiring hemodialysis (n=124). Self-Efficacy for Restricting Dietary Salt in Hemodialysis Scale was evaluated on Internal consistency, construct validity, and convergent validity. The Self-Efficacy for Restricting Dietary Salt in Hemodialysis Scale demonstrated adequate internal consistency (overall Cronbach α = 0.93) and construct and convergent validity.
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