Figure 5From: Combining Affymetrix microarray resultsComparison of SLR estimates with true values from simulation example. Green squares represent type I errors, genes incorrectly claimed as differentially expressed. Red triangles represent type II errors, genes incorrectly claimed to be not significantly differentially expressed. The SLR estimates from the random effects meta-analysis tend to approximate the true values much better than does any single lab.Back to article page