Estimates of FWE when testing at the α = 0.05 and using Method S to choose the covariate values.

Table3: Estimates of FWE when testing at the α = 0.05 and using Method S to choose the covariate values.

$g$	$h$	n₁	n₂	a = 1	a = 2
0	0	30	30	0.048	0.067
0	0.2	30	30	0.042	0.063
0.2	0	30	30	0.047	0.047
0.2	0.2	30	30	0.052	0.061
0	0	30	60	0.048	0.079
0	0.2	30	60	0.051	0.057
0.2	0	30	60	0.053	0.06
0.2	0.2	30	60	0.052	0.047
0	0	150	200	0.065	0.11
0	0.2	150	200	0.062	0.097
0.2	0	150	200	0.065	0.106
0.2	0.2	150	200	0.064	0.099