Table 1.

The posterior distribution of the parameters of the best model.

Analysis	Variable	Parameter	EAP	2.5%	97.5%
Analysis 1	age	β 1	0.043	0.014	0.072
	distance	β 3	1.84	1.36	2.32
	distance2	β 4	−0.796	−1.05	−0.552
	D	−β3/2β4	1.16	1.06	1.30
Analysis 2	age (parent)	β 1	−0.037	−0.075	0.0006
	age (infant)	β1 + β6	0.111	0.073	0.149
	distance (parent)	β 3	1.38	0.868	1.88
	distance (infant)	β3 + β8	2.32	1.79	2.84
	distance2	β 4	−0.830	−1.09	−0.574
	initiator	β 5	−2.41	−3.07	−1.75
	$D_{(\mathrm{parent})}$	−β3/2β4	0.829	0.699	0.949
	$D_{(\mathrm{infant})}$	−(β3 + β8)/2β4	1.41	1.26	1.62
	ΔD	−β8/2β4	0.578	0.401	0.833

The mean (EAP) and quantiles (2.5% and 97.5%) of posterior distribution are shown.