Final model of childhood trauma, impulsivity, PTSD, and substance-related problems. All paths shown are standardized estimates. Bolded lines are significant at the p < .01. Unbolded lines are not significant. Values in parentheses are standard errors. Fit statistics were: χ2 (5) = 2.12, p =0.83; RMSEA < 0.01, 95% CI [<0.01 to 0.09]; CFI = 1.00; SRMR = 0.04; BIC = 2143.38.