Table 2.

Summary of model fit

Statistic	Null model	Full model
$\overline{D}$	20,656.42	20,553.76
pD	26.59	34.89
DIC	20,683.01	20,588.65
${\mathit{\sigma }}_u^2+{\mathit{\sigma }}_v^2$	0.76	0.22
$\mathit{\varphi }$	0.04	0.32