Table 5.

The 95% interval of the sampling distribution of the posterior mean when experiment noise is correlated between genes. The results show that the estimate of ψ_1,2 is essentially unbiased but the variation increases as the degree of between gene correlation increases. The fourth column shows the coverage of the 95% credible interval. While there is significant undercoverage, the error is small.

	2.5%	Mean	97.5%	Coverage
ψ = 0.5, 10 blocks	0.46	0.50	0.52	0.81
ψ = 0.5, 100 blocks	0.47	0.50	0.52	0.91
ψ = 0.5, Brem et al	0.48	0.50	0.52	0.90
ψ = 0.8, 10 blocks	0.77	0.79	0.81	0.59
ψ = 0.8, 100 blocks	0.79	0.80	0.81	0.89
ψ = 0.8, Brem et al	0.78	0.80	0.82	0.74
ψ = 0.9, 10 blocks	0.86	0.89	0.91	0.28
ψ = 0.9, 100 blocks	0.89	0.90	0.91	0.76
ψ = 0.9, Brem et al	0.88	0.90	0.91	0.60