Table 5.

Relative bias in parameter estimates comparing three comparative methods.

Proportions of floor data (%)	Parameter estimates
	γ10			γ01
	Multilevel model floors ignored	Robust standard error	Multilevel model floors considered	Multilevel model floors ignored	Robust standard error	Multilevel model floors considered
0	−0.00	−0.00	−0.00	−0.01	−0.01	−0.01
5	−0.05	−0.05	0.00	−0.05	−0.05	0.00
10	−0.10	−0.10	0.00	−0.10	−0.10	0.00
15	−0.15	−0.15	0.00	−0.14	−0.14	0.00
20	−0.20	−0.20	0.00	−0.20	−0.20	0.00
25	−0.26	−0.26	0.00	−0.26	−0.26	0.00