In preliminary analyses to ensure that 9/11 exposure was associated with each disorder indicating the latent dimensions and that single disorders were not driving the effects observed in INT and EXT, we explored associations between 9/11 exposure and each diagnosis. Using the established meta-structure for these disorders (Eaton et al., 2013), we created an externalizing (EXT) factor (AD, ND, CD, ASPD) and an internalizing (INT) factor (MDD, GAD, PTSD), using confirmatory factor analysis. A two-factor solution provided an excellent fit to the data (CFI = 0.99, TLI = 0.99, RMSEA = 0.02).
