Plan, size, and pre-register your study with tools built by a working health economist. Two calculators are fully live today; the guided builders are rolling out to members.
Step through objectives, design, population, endpoints, and analysis with expert prompts — export a submission-ready protocol.
Coming to members → Guided builderAssemble a statistical analysis plan — estimands, models, missing-data strategy, and sensitivity analyses — with defaults you can defend.
Coming to members → ● Live toolTwo proportions, two means, or one proportion — with power, alpha, allocation ratio, and dropout adjustment. Formula shown.
Calculate now → Guided builderDraw a causal diagram, identify confounders and colliders, and get a minimal sufficient adjustment set for your analysis.
Coming soon → ● Live toolRecover the power your study achieved from its sample size and effect size — indispensable for reviews and rebuttals.
Calculate now → BetaAsk methods questions, draft analysis plans, and pressure-test assumptions — grounded in HEOR and epidemiology best practice.
Join the waitlist →From a single power check to a full protocol, Dr. Beyene's team can help.