Table 2.

Gender among variables under study.

	Boys	Girls	z	p
Verbal aptitude	21.37	20.56	−2.92	0.004
Numerical aptitude	23.82	21.72	−5.62	0.000
Abstract reasoning	23.82	22.21	−7.86	0.000
Scenarios	14.52	14.74	−1.22	0.224
Self-questionnaire	4.28	4.48	−5.32	0.000
T1 Academic perf.	8.03	8.27	−6.87	0.000
T2 Academic perf.	7.93	8.20	−6.00	0.000
T3 Academic perf.	7.53	8.02	−8.82	0.000

Note: In boys and girls row, mean is showed. Z from Mann-Whitney test.