Table 1.

Type I error at two significant levels (1,800 families)

	RFGLS-UN	RFGLS-VC	FGLS	GLS	OLS	GWAF	GEE	QTDT
α = 1 × 10−4a
HomoG	1.0	1.0	1.0	1.0	4.2	1.0	1.1	1.0
HomoGE	1.0	1.0	1.0	1.0	10.0	1.0	1.1	1.0
HetGE	1.0	1.0	1.0	1.0	4.9	1.0	1.1	1.0
α = 5 × 10−6b
HomoG	5.0	5.8	5.0	5.0	45	5.1	5.7	5.0
HomoGE	5.0	5.0	5.0	5.0	120	5.0	6.6	5.0
HetGE	4.8	6.0	4.9	5.0	48	5.1	6.2	4.9

There were 1,000 simulations and 10,000 nonassociated SNPs in each simulation.

^aValues × 10⁻⁴

^bvalues × 10⁻⁶.