Fit statistics from exploratory factor analysis indicated that a one-factor model was optimal for these data, with a Comparative Fit Index (CFI) =.998, Tucker-Lewis Index (TLI) =.999 and Root Mean Square Error of Approximation (RMSEA) =.034. In each subgroup as well (men with and without DUIs, women with and without DUIs), fit statistics indicated a unidimensional structure provided the best fit to the data, with CFIs and TLIs ranging from .992 to .999 and RMSEAs ranging from .025 to .061.
