Table 2. Consistency of Sex Differences in Thermal and Contact Measures in Experiment 2.

Sign Tests
measure		Z score	p-value(<)
Warm phase
	TIS	−5.71*	.000001
	Trump	−5.67*	.000001
	TΔ	−.50	.617
	Total Contacts	−.68	.499
	Same/Opposite Sex	−.18	.855
	Male-Male/Fem-Fem	−.83	.405
Cool phase
	TIS	−5.37*	.000001
	Trump	−2.09*	.05
	TΔ	−4.67*	.000005
	Total Contacts	−4.37*	.00002
	Same/Opposite Sex	−3.04*	.003
	Male-Male/Fem-Fem	−4.06*	.00005

Note. Results for Sign tests on thermal and contact measures obtained under identical T_a for the two sexes. Asterisks indicate a significant difference. In all cases of a significant difference this indicated higher female over male values and greater same- versus opposite-sex and female-female over male-male contacts.