Development and reliability of an instrument to measure psychosocial determinants of salt consumption among hypertensive patients

Authors

  • Marília Estevam Cornélio Universidade Estadual de Campinas; Faculdade de Ciências Médicas
  • Maria Cecília Bueno Jayme Gallani Universidade Estadual de Campinas; Faculdade de Ciências Médicas
  • Gaston Godin Université Laval
  • Roberta Cunha Matheus Rodrigues Universidade Estadual de Campinas; Faculdade de Ciências Médicas
  • Roberto Dela Rosa Mendes Universidade Estadual de Campinas; Faculdade de Ciências Médicas
  • Wilson Nadruz Junior Universidade Estadual de Campinas; Faculdade de Ciências Médicas

DOI:

https://doi.org/10.1590/S0104-11692009000500017

Keywords:

diet, sodium-restricted, reproducibility of results, nursing

Abstract

This study aimed to present the content validity and reliability analyses of an instrument to study the determinant factors of salt consumption among hypertensive subjects, based on an extension of the Theory of Planned Behavior. Content validity was assessed by 3 experts and a pre-test was carried out with 5 subjects. The final tool, comprising 3 different behaviors related to salt consumption and corresponding psychosocial variables, was applied to 32 subjects for internal consistency and temporal stability (15-day interval) analysis. Cronbach's alpha coefficients >; 0.70 and significant intra-class correlation coefficients were observed for most variables, indicating the temporal stability of the measured concepts. The developed instrument exhibited evidence of both content validity and reliability.

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Published

2009-10-01

Issue

Section

Original Articles

How to Cite

Development and reliability of an instrument to measure psychosocial determinants of salt consumption among hypertensive patients. (2009). Revista Latino-Americana De Enfermagem, 17(5), 701-707. https://doi.org/10.1590/S0104-11692009000500017