Fig. 4From: Cluster randomised trials with a binary outcome and a small number of clusters: comparison of individual and cluster level analysis methodComparison of bias and type-one error of unweighted cluster-level analysis, GLMM with REPL and DFCP, and GEE with FG standard errors and DFCP by number of clusters (rows), and mean cluster size (colour). Measures shown (columns): Standardised intervention effect estimate bias, standard error bias, type-one errorBack to article page