Confirmatory factor analysis of the Autonomy over Tobacco Scale (AUTOS) in adults.

摘要: Abstract Introduction The Autonomy over Tobacco Scale (AUTOS), a 12-item self-administered questionnaire, was designed to measure autonomy in three correlated lower-order symptom domains: withdrawal, psychological dependence, and cue-induced craving. factor structure of the AUTOS remains an open question; confirmatory analyses adolescents supported hierarchical structure, while exploratory adults yield single-factor solutions. Here we seek determine whether hypothesized is valid adult smokers. Methods administered two independent convenience samples current smokers: calibration sample recruited US for online studies, confirmation drawn from prospective Nicotine Dependence Teens study Montreal. We tested competing models using robust weighted least-squares (WLSMV) estimation method. Results A model that allowed error variances between theoretically related items fit well ( n  = 434), χ 2 SB (52) = 165.71; / df  = 3.19; SRMR = 0.03; CFI = 0.96; NNFI = 0.95; RMSEA = 0.07 (95% CI: 0.06, 0.08). Reliability single high (ω B  = 0.92) construct validity adequate. In  = 335), similar well:χ (53) = 126.94; /df = 2.44; SRMR = 0.04; CFI = 0.95; NNFI = 0.93; 0.05, again Conclusion unidimensional