Zohreh Fathian-Dastgerdi - Department of Health Education and Promotion, School of Health, Isfahan University of MedicalSciences, Isfahan, Iran
Mojgan Rezazadeh - Isfahan University of Medical Sciences, Isfahan, Iran.
Elham Molavi - Isfahan University of Medical Sciences, Isfahan, Iran.

Background: Reductions in the age at onset of smoking to adolescence is a public health concern.Evidence suggests that cognitive factors(CF)play an important role in adolescent smokingbehavior. the present study aimed to perform a psychometric analysis of the questionnaire of CFon smoking behavior and evaluate the theoretical framework with a path analysis approach inadolescents in Isfahan, Iran.Methods: This psychometric cross-sectional study recruited a sample of ۳۴۰ adolescents selectedby simple random stratified clustered sampling in Isfahan in ۲۰۱۹. The data were collected using aresearcher-made questionnaire on cognitive variables based on Bandura’s social cognitive theory.Results: The participants’ mean age was۱۶.۶۷(۰.۹۸) years. The content validity index, contentvalidity ratio, and total corrected item-total correlations index of the questionnaire of CF were۰.۷۹, ۰.۵۶, and ۰.۳۶۲ respectively. The results of confirmatory factor analysis showed acceptablegoodness of fit for the first and second-order measurement models of cognitive variables and theresults of path analysis showed acceptable goodness of fit for the explanatory model of CF.Conclusion: This study proposed a reliable and valid explanatory model of CF and itsquestionnaire for smoking behavior. The questionnaire can also be utilized in future research onsmoking behavior in adolescents.

Smoking, Adolescent, Cognitive Factors, Path Analysis, Mixed Methods Study,Cognitive Factors, Path Analysis, Mixed Methods Study