Overview | The basic workflow | Required data and indexing conventions | Choosing the design options | Large-strata designs | Unadjusted and adjusted estimation | Plotting treatment effects | Uniform small-strata designs | Mixed small- and large-strata designs | How k and the 25% rule work | Cluster-randomized experiments | Experiments without stratification | The sreg result object | HC1 correction | Working with the built-in empirical data | Simulation with sreg.rgen() | Common warnings and errors | Recommended analysis checklist | References and further help