The Eigenvalues for the first three factors from the alcohol problems factor analysis exceeded 1 (6.78, 1.69, and 1.29), and the scree plot and fit statistics indicated that a one-factor model provided an adequate fit to the data. We then ran a confirmatory factor analysis to calculate factor scores for use in subsequent analyses. Resulting alcohol problems factor scores (n = 5952) ranged from −0.45 to 4.18 (Figure S1) and were positively skewed (skewness=2.82).
