Stratified randomization involves several key steps: 1. Identify Strata: Determine the key covariates (e.g., age, gender, disease severity) that need to be balanced across treatment groups. 2. Create Strata: Divide the study population into distinct strata based on these covariates. 3. Randomize Within Strata: Perform randomization separately within each stratum to allocate participants to different treatment arms.
