Table A2

Sample power calculations

Minimum detectable effectNumber of clustersUnits per clusterTreatment sample with clustersComparison sample without clusters
Small (δ = 0.2)Not feasibleNot feasibleNot feasible787
Medium (δ = 0.4)2416384198
Large (δ = 0.5)1616256128

Source(s): Authors’ own work

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