Table 2 Categorical regression (CATREG) models in the total sample regressing the total COBEL scores on the three temperamental factors (Model 1), gender (Model 2), interaction of temperament and gender (Model 3), and interactions among the temperamental factors (Model 4).

	Model 1	Model 2	Model 3	Model 4
R²	0.043	0.084	0.145	0.156
R² (adj.)	0.020	0.055	0.096	0.085
f ²	0.04	0.09	0.17	0.18
F	1.875	2.859	2.933	2.185
p	0.137	0.026	0.007	0.023
ΔR²	0.043	0.041	0.061	0.011
p		0.020	0.039	0.674
Surgency	0.110	0.104	0.424	0.525
p	0.215	0.257	0.114	0.114
Negative affectivity	0.144	0.141	−0.491	−0.492
p	0.174	0.188	0.100	0.163
Effortful control	0.201	0.118	0.204	0.211
p	0.022	0.233	0.476	0.512
Gender		0.219	0.213	0.217
p		0.021	0.025	0.028
Gender*Surgency			−0.314	−0.436
p			0.270	0.198
Gender*Negative Affectivity			0.669	0.650
p			0.034	0.076
Gender*Effortful Control			−0.059	−0.082
p			0.849	0.798
Surgency*Negative Affectivity				0.093
p				0.358
Surgency*Effortful Control				−0.037
p				0.717
Negative Affectivity*Effortful Control				−0.024
p				0.834

Gender is coded as 0 = boy and 1 = girl. The predictor-related values represent βs. Significant effects to be interpreted are highlighted in bold. The model that seems to provide the best explanation is Model 3.

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