Table 2.

Average values of the root-mean-square error (RMSE) for the MLE along with the density approximation error (DAE), the Hellinger distance (HD) and the Kullback–Leibler divergence (KLD) between the density of the MLE-centered normalized posterior distribution and a bivariate standard normal density, based on 1000 simulations of model (19) with $q=2$, for different numbers of items d.

d	${\overline{\mathrm{RMSE}}}^{(d)}$	${\overline{\mathrm{DAE}}}^{(d)}$	${\overline{\mathrm{HD}}}^{(d)}$	${\overline{\mathrm{KLD}}}^{(d)}$
10	1.4105	1.1416	0.1330	3.0803
20	0.8206	0.8267	0.0885	1.2698
30	0.6730	0.7272	0.0750	0.8601
40	0.5658	0.6314	0.0634	0.5922
50	0.4552	0.5222	0.0515	0.3850
60	0.3859	0.4510	0.0439	0.2776
70	0.3530	0.4184	0.0403	0.2303