Table 1.

Performance of the covariance diagnostic for the multivariate Poisson model, based upon 1000 simulations for various scenarios of , p, and T for sites. EPN is the proportion of simulations when the sample covariance diagnostic was negative. EPD is the proportion of simulations where the estimate of

	p	EPN	EPD	EPN	EPD	EPN	EPD
2	0.10	0.505	0.505	0.351	0.351	0.276	0.276
2	0.25	0.225	0.224	0.090	0.089	0.033	0.033
5	0.10	0.427	0.427	0.362	0.361	0.219	0.222
5	0.25	0.167	0.167	0.084	0.084	0.017	0.020
10	0.10	0.398	0.398	0.317	0.318	0.251	0.256
10	0.25	0.180	0.181	0.066	0.066	0.038	0.038