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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Addict Behav. 2015 Aug 21;52:13–21. doi: 10.1016/j.addbeh.2015.08.005

Figure 2.

Figure 2

Confirmatory Factor Analysis.

Note. We tested a model supported by the initial exploratory factor analysis; with items 1–5 loading on the alcohol use leads to e-cig use (Scale 1) and items 6–8 loading onto the e-cig use leads to alcohol use (Scale 2). For simplicity, error terms are not shown. Fit indices for this model were good, suggesting adequate fit for the model: χ2=47.00, p<0.01, df=19; RMSEA=0.08, 90% CI=0.05–0.11; TLI=0.99; CFI=0.99.