Figure 4From: Planning a cluster randomized trial with unequal cluster sizes: practical issues involving continuous outcomesPower of cluster randomized trials if an imbalance in cluster size is not taken into account when planning. The imbalance is a priori hypothesized to be "a proportion of γ clusters will actually recruit a proportion τ of the subjects to be included" (γ ≤ τ) – The intraclass correlation coefficient is fixed at 0.05 and 0.10.Back to article page