Table 3.

Multilevel linear model results regarding effects of sex, age, and hand on 2D:4D

Effect	Estimate	SE	df	t	p
Intercept	− 0.22	0.07	283.2	3.21	.001
Sex	0.49	0.09	211.1	5.42	< .001
Age	0.11	0.03	848.0	4.17	< .001
Hand	− 0.04	0.05	782.8	0.74	.458

SE standard error

Estimates represent standardized (age) and semi-standardized (sex, hand) regression weights. Analyses were performed with the R procedures lme4 and lmerTest with restricted maximum likelihood estimation. For sex, 0 = boys, 1 = girls. For hand, 0 = left, 1 = right