Champion's health belief model scale validity evidence for Brazil

Abstract

Objective: Performing translation and cross-cultural adaptation of the Champion's Health Belief Model Scale (CHBMS) for use in Brazil for mammographic screening, and verify the validity evidence of the Brazilian version of this scale. Methods: Methodological study, conducted with 206 women attending a Basic Health Unit, in the city of Fortaleza, state of Ceará, Brazil, from August 2015 to December 2017. The scale went through a process of translation and cross-cultural adaptation, including face and content validation. Afterwards, validity evidence was verified (1.Vality based on internal structure, assessed by exploratory analysis, with varimax orthogonal rotation and retention of factors by parallel analyzes; 2. Reliability from Cronbach's alpha homogeneity and test-retest stability). Results: In face and content validation, the tool showed good acceptance among the judges and the target audience. The final exploratory factor analysis model resulted in a seven-item scale, divided into three domains, with an explained variance of 71.4%, with Cronbach's alpha ranging from 0.50 to 0.88. For scale reliability, Pearson r and Spearman ρ showed high reliability (0.997 and 0.986). Conclusion: The Brazilian version of Champion's Health Belief Model Scale provides good evidence of validity based on internal structure and is reliable. It may be used in Brazil to assess mammography compliance monitoring.