Assessing the psychometric properties of smoking-related attitudes,self-efficacy,and intention among a diverse population of middle school students |
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| Authors: | Kentya H. Ford Abiola O. Oladapo Kymberle L. Sterling Pamela M. Diamond Steven H. Kelder Alfred McAlister |
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| Affiliation: | 1. University of Texas at Austin, College of Pharmacy, Austin, TX, USA;2. Georgia State University, Atlanta, GA USA;3. University of Texas-Houston School of Public Health, Houston, TX, USA;4. University of Texas-Austin School of Public Health, Michael and Susan Dell Center for Healthy Living, Austin, TX, USA |
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| Abstract: | Large-scale surveys frequently assess smoking-related attitudes, self-efficacy and intention to understand differences in smoking behavior. However, a critical assumption is that measures of these determinants should be equivalent across different subgroups of a target population. The current study examined the factorial invariance of measures of smoking-related attitudes, self-efficacy, and intention with a large sample (N = 13,733) of middle school students from 25 schools in Texas. We examined five levels of factorial invariance using a sequential process, in which increasingly constrained models assess the equivalence of a measure across subgroups. Strong factorial invariance provided a good fit for the model across all of the subgroups: race/ethnicity (CFI = .93), gender (CFI = .96), age (CFI = .95), and grade level (CFI = .95). Invariance results provide strong empirical support for the validity of smoking-related attitudes, self-efficacy, and intention measures across race/ethnicity, gender, age, and grade level for middle school students. |
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| Keywords: | Smoking prevention Factorial invariance Self-efficacy Attitudes Intention Middle school students |
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