Without allocation concealment, randomisation alone cannot be guaranteed to give a unbiased evaluation. The point of allocation concealment is to prevent the prediction of the next allocation thus ensuring selection bias is not introduced 2/8 https://t.co/
RT @dnunan79: 22 years since their seminal paper, Kenneth Schulz, Doug Altman @iainchalmersTTi w @dmoher tell us 'much room for improvement…
RT @dnunan79: 22 years since their seminal paper, Kenneth Schulz, Doug Altman @iainchalmersTTi w @dmoher tell us 'much room for improvement…
RT @dnunan79: 22 years since their seminal paper, Kenneth Schulz, Doug Altman @iainchalmersTTi w @dmoher tell us 'much room for improvement…