Computed sample size, estimated assurance probability, and simulated assurance probability for 95% confidence interval of standardized contrast when the number of groups <i>G</i> = 3, standardized contrast effect ψ* = 0.5, assurance probability 1 –γ = 0.80, and covariate disparity θ = 0.

Computed sample size, estimated assurance probability, and simulated assurance probability for 95% confidence interval of standardized contrast when the number of groups G = 3, standardized contrast effect ψ* = 0.5, assurance probability 1 –γ = 0.80, and covariate disparity θ = 0.