Table 5.

OLS regressions of 2D:4D on self-confidence.

	Both genders				Women				Men
	I	II	III	IV	I	II	III	IV	I	II	III	IV
Average digit ratio	26.749**	30.298**	30.513**	29.594**	12.32	13.01	13.07	13.10	36.734**	39.409*	39.201*	38.099*
	(11.11)	(11.68)	(11.06)	(10.80)	(16.45)	(15.40)	(15.60)	(15.69)	(16.71)	(18.43)	(18.40)	(17.86)
Gender: Male = 1	3.931***	3.540***	3.572***	3.310***	–	–	–	–	–	–	–	–
	(0.96)	(0.96)	(0.94)	(0.88)	–	–	–	–	–	–	–	–
Familiarity with task		0.994	1.006	0.918		1.74	1.737	1.511		−0.19	−0.17	−0.12
		(1.19)	(1.20)	(1.19)		(2.11)	(2.19)	(2.18)		(1.06)	(0.94)	(0.95)
Math degree		1.676*	1.573	1.612		−0.332	−0.335	−0.282		3.231**	3.134**	3.166**
		(0.93)	(1.04)	(1.07)		(1.95)	(1.92)	(1.97)		(1.19)	(1.24)	(1.22)
Risk attitude index			−0.16	−0.19			−0.005	−0.059			−0.38	−0.37
			(0.28)	(0.29)			(0.37)	(0.39)			(0.43)	(0.42)
Self-efficacy				0.180*				0.160*				0.12
				(0.09)				(0.089)				(0.24)
Observations	247	245	244	244	128	128	128	128	119	117	116	116

This table shows OLS regressions of number of repetitions of tasks expected to solve in 20 min after 1 min of practice time on the 2D:4D digit ratio. All regressions include sessions fixed effects and robust standard errors clustered by session are reported in brackets.

^***significant at 1%,

^**significant at 5%,

^*significant at 10%.