Table 2.

Regression coefficients with 95% confidence intervals predicting female sex.

Predictors	Model 1		Model 2		Model 3		Model 4
	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
(Intercept)	1.15	1.06–1.25	1.20	1.09–1.31	1.21	1.10–1.34	1.21	1.09–1.35
Verbal Fluency	1.26	1.16–1.37	1.48	1.34–1.63	1.43	1.29–1.59	1.31	1.17–1.46
Verbal Episodic Memory	1.43	1.31–1.56	1.57	1.43–1.74	1.61	1.45–1.80	1.74	1.55–1.95
Face Recognition	1.23	1.13–1.34	1.26	1.14–1.39	1.27	1.14–1.41	1.20	1.08–1.35
Emotion Recognition	1.09	1.00–1.18	1.16	1.05–1.28	1.14	1.03–1.27	1.13	1.01–1.26
Line Angle Judgment			0.48	0.43–0.53	0.49	0.44–0.55	0.50	0.44–0.56
Mental Rotation			0.42	0.38–0.47	0.47	0.42–0.52	0.56	0.50–0.64
Openness					0.85	0.76–0.95	0.95	0.84–1.06
Conscientiousness					1.65	1.47–1.84	1.58	1.41–1.78
Extraversion					1.28	1.15–1.43	1.25	1.11–1.41
Agreeableness					1.49	1.34–1.67	1.33	1.17–1.51
Neuroticism					2.23	1.99–2.52	1.93	1.71–2.20
Interest in People							1.02	0.90–1.16
Interest in Things							0.41	0.36–0.46
AIC	3254.9		2655.0		2383.0		2162.2
BIC	3284.0		2695.7		2452.7		2243.5
RMSE	0.48		0.42		0.40		0.37
df	5		7		12		14
Δχ2	172.5		603.9		282.1		224.8
Tjur’s R2	0.07		0.28		0.37		0.44
Nagelkerke’s R2	0.09		0.36		0.46		0.54

Females are coded 1 and males 0. AIC = Akaike Information Criterion, BIC = Bayesian Information Criterion, RMSE = Root Mean Square Error. Δχ² reflects the likelihood ratio test comparing each model to the preceding model.