TABLE 3.

Estimation for variance components

Model	Parameter	Estimate	SE
Model 1	${\sigma }_{\gamma }^2$	0.7578	0.1511
	${\sigma }_{\alpha 1}^2$	0.1804	0.0770
	${\sigma }_{\alpha 2}^2$	0.4886	0.1707
	ρ	0.0626	0.0410
Model 2	${\sigma }_{\gamma }^2$	0.7179	0.1424
	${\sigma }_{\alpha 1}^2$	0.1842	0.0835
	${\sigma }_{\alpha 2}^2$	0.3756	0.1316
	ρ	0.0686	0.0435

Abbreviation: SE, standard error.