Design and evaluation of psychometric properties of cigarette smoking tendency questionnaire for female adolescents (CTQFA)

BACKGROUND: The tendency of women to smoke has increased in recent years and the prevalence of smoking among women is increasing. The purpose of this study was to design and evaluation the psychometric properties of the smoking tendency questionnaire for Iranian female adolescents. METHODS: This cross-sectional study was performed on 604 female adolescents in Iran in 2021. The bank of questions was designed based on the qualitative study concepts and review of the literature. To perform the psychometric evaluation, steps such as face validity (qualitative), content validity (qualitative and quantitative) and construct validity (confirmatory factor analysis) were performed. The reliability of the instrument was assessed using McDonald’s omega coefficient and Cronbach’s alpha coefficient. RESULTS: Based on the results of psychometrics (face, content, and construct validity), the number of questions was reduced from 102 to 52, and 50 questions were removed. Finally, a questionnaire with 52 questions and 5 subscales of the tendency to experience smoking (14 items), re-experience smoking (8 items), cigarette dependence (9 items), intention to quit smoking (9 items), and smoking cessation (12 items) was approved. The content validity ratio (CVR) and content validity index (CVI) for all questions were 0.770 and 0.938, respectively. The Cronbach’s alpha and McDonald’s omega coefficients for all questions were 0.903 and 0.904, respectively. CONCLUSION: Based on the results of this questionnaire, 52 questions, and 5 subscales can be used to assess the tendency of female adolescents to cigarette smoking.