Table 1.

Measurements and sexual differences of 2D:4D ratio by three methods

Method	Left hand				Right hand
	M	SD	t	p	M	SD	t	p
Direct
Men	0.96	0.03	−1.21	ns	0.95	0.03	−3.27	<.001
Women	0.97	0.03			0.96	0.03
X1
Men	0.92	0.02	−4.56	<.001	0.92	0.02	−5.43	<.001
Women	0.93	0.02			0.93	0.02
X2
Men	0.92	0.02	−4.41	<.001	0.92	0.02	−3.99	<.001
Women	0.93	0.02			0.93	0.02