Tool to calculate intra-cluster correlation coefficients for designing cluster randomized trials

Statistical tool developed by Monica Taljaard and Yongdong Ouyang to estimate intra-cluster correlation coefficients for planning longitudinal cluster randomized trials: https://douyang.shinyapps.io/estimateICC/

This app fits the following designs:

• Cross-section design with individual-level data (Continuous and Binary outcomes)
• Cross-section design with aggregated-level data (Binary outcomes only; Denominators and numerators at cluster-period level are available)
• Cohort design with individual-level data (Continuous and Binary outcomes)