A review found small variable blocking schemes may not protect against selection bias in randomized controlled trials
Laura Clark, Lauren Burke, Rachel Margaret Carr, Elizabeth Coleman, Gareth Roberts, David Torgerson
Topics & Concepts
RandomizationBlocking (statistics)SubversionRandomized controlled trialMedicineClinical trialBlock (permutation group theory)Computer scienceStatisticsInternal medicineMathematicsPoliticsLawPolitical scienceGeometryStatistical Methods in Clinical TrialsMeta-analysis and systematic reviewsEthics in Clinical Research