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. 2017 Sep 28;8:1691. doi: 10.3389/fpsyg.2017.01691

Table 3.

Estimates and fit statistics in the linear and non-linear models for acceptance.

Model -2 Log Likelihood # Parameters Δ Chi Square p AIC BIC
Pattern correspondence models
Linear 700.06 8.00 716.06 754.26
Quadratic 695.47 10.00 4.59 0.10 715.47 763.22
Cubic 690.18 12.00 9.88 0.04 714.18 771.48
Negative exponential 698.46 8.00 - - 714.46 752.66
Mean-level match models
Linear 816.83 11.00 838.83 893.48
Quadratic 814.29 15.00 2.53 0.64 844.29 918.81

AIC, Akaike information criterion; BIC, Bayesian information criterion. Δ Chi Square results represent the results of the comparison with the linear model. Quadratic and cubic models included lower level effects (e.g., linear effect in the quadratic model).