Development and psychometric evaluation of the Spanish version of the lung cancer screening health belief scale

Objective The aim of this study was to describe the translation and psychometric testing of the Lung Cancer Screening Health Belief Scale (LCSHBS) into Spanish. Methods The English version of the LCSHBS was professionally translated in accordance with best practices in the translation of patient-reported outcome tools. The independent certified professional translator completed a forward translation of the LCSHBS from English to Spanish, followed by a review of the translated questionnaire by a certified Memorial Sloan Kettering Cancer Center Spanish-English bicultural expert, who reviewed the scale for accuracy. Results Initial testing of the scales is valid and reliable, and supports the Spanish version of the LCSHBS (LCSHBS-S). Internal consistency reliability of the scales was supported with Cronbach's ranging from 0.81 to 0.96. Construct validity was established with confirmatory factor analysis and testing for differences between individuals who have and have not screened in theoretically proposed directions. These newly translated scales can help investigators expand this research into the large Spanish-speaking lung screening-eligible population as they develop and test critical behavioural interventions to increase lung cancer screening in the at-risk population. Conclusions Development of effective interventions to enhance shared decision-making about lung cancer screening between patients and providers must first identify factors influencing the individual's screening participation. Future efforts facilitating patient-provider conversations are better informed by understanding the perspective of the individual making the decision.