Table 3.

Empirical bias (Bias), empirical standard errors (ESE), average of the estimated standard errors (ASE) and empirical coverage levels of the 95% CIs for the IncV comparing the optimal ITR under the full model versus the reduced model, where the optimal ITRs are estimated based on ${\widehat{I}}_{\widehat{¢}}$, and ${\widehat{\mathcal{I}}}_{\mathrm{calib}}$.

				Apparent			2-fold CV
Response	Method	True	ASE	Bias	ESE	95%-CP	Bias	ESE	95%-CP
Continuous	${\widehat{I}}_{\widehat{¢}}$	0.663	0.215	0.025	0.217	0.946	−0.019	0.218	0.948
	${\widehat{\mathcal{I}}}_{\mathrm{calib}}$		0.187	0.013	0.183	0.948	−0.007	0.184	0.952
Binary	${\widehat{I}}_{\widehat{¢}}$	0.011	0.026	0.005	0.024	0.973	0.002	0.024	0.966
	${\widehat{\mathcal{I}}}_{\mathrm{calib}}$		0.021	0.004	0.020	0.966	0.001	0.019	0.957