Sequential Allocation for Prospective Experiments
Biased Coin Design Allocation
Sequential Allocation for CAIT Method
Sequential Allocation Using Covariate Adaptive Randomization
Evaluate Optimal Guess
Evaluate covariate imbalance using R-squared.
Maximum Allocation Imbalance for Covariates
Sequential Allocation for Randomized Experiments
Sequential Allocation for Prospective Experiments
Plot the evaluation criteria for the designs
Stratified permuted block allocation
Find summary statistics
Weighted Average of Allocation Imbalance for Covariates
Calculate weight matrix from matrix of covariates
Potential randomization schemes are prospectively evaluated when units are assigned to treatment arms upon entry into the experiment. The schemes are evaluated for balance on covariates and on predictability (i.e., how well could a site worker guess the treatment of the next unit enrolled).