Bubble plot of standardized between-group mean difference (SMD - equivalent to effect size) against pre-intervention (baseline) pooled ECBI-I scores. The baseline ECBI-I scores are centered on the mean value across all included studies. The size of the circle represents the study sample size. ECBI-I, Eyberg Child Behavior Inventory - Intensity scale.
Wilson et al. BMC Medicine 2012 10:130 doi:10.1186/1741-7015-10-130