TABLE 3.

Possible values of data-generation simulation parameters, manipulated in a full-factorial design

Covariate contrast	k	E[N]	${\tau }_{ϵ}^2$	Clustered	γ distribution	P(z)
B	10	100	0.0025	No: M = k	Normal	0.05
BC	20	850	0.01	$Var(\zeta )=0.75\times {\tau }_{ϵ}^2\text{Yes:}M=k∕2$	Exponential	0.10
BC-rare	50		0.04			0.20
	100		0.25			0.50
	150		0.64