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. Author manuscript; available in PMC: 2015 Feb 19.
Published in final edited form as: Intelligence. 2014 Feb 19;43:65–76. doi: 10.1016/j.intell.2014.01.008

Table 3.

Model fitting results for tests of presence of latent phenotypes

Model −2LL DF LRT ΔDF p BIC
ACE Cholesky 29711.99 12108 NA NA NA −48197.50
Higher Order IP Model 29769.62 12170 57.63 62 .63 −48538.81
Higher Order IP-CP Model 29772.65 12176 60.66 68 .72 −48574.39
Higher Order CP Model 29780.60 12179 68.61 71 .56 −48585.74

−2LL = Negative 2 Log-Likelihood, DF = Degrees of Freedom, LRT = Likelihood Ratio Chi-Square Value; p = Significance of the LRT; BIC = Bayesian Information Criterion; IP = Independent Pathways Model; IP-CP = Combined Independent and Common Pathways Model; CP = Common Pathways Model. All models are tested against the fit of the ACE Cholesky. The common environment is estimated as a Cholesky in all models.