Chunk #24 — Results — Neuroticism, Internalizing Disorders, and Substance Use Disorders: Structural Models — Neuroticism and internalizing psychopathology: one and the same?5
Because the correlation between neuroticism and internalizing psychopathology approached 1.0, we investigated whether constraining the correlation between them as such would provide a good fitting model. As recommended by van der Sluis, Dolan, and Stoel (2005), we constrained the paths from internalizing psychopathology to substance use, and from neuroticism to substance use, to be equal. This model also provided an excellent fit to the data (CFI=.95, RMSEA=.03, WRMR=.98), and was not significantly different than the previous model without these constraints, χ2 (2)=1.62, p=.45. Thus, a model that assumed a correlation of 1.0 between neuroticism and internalizing psychopathology was a good fit.
