Blinding in clinical trials and other studies

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Short article from the British Medical Journal.

• Format Texts
• Language/s English
• Target Audience Further education
• EBM Stage 3 - Appraising evidence
• Duration <5 mins
• Difficulty Introductory

Key Concepts addressed

• 2-1d People should not know which treatment they get

Details

Human behaviour is influenced by what we know or believe. In research there is a particular risk of expectation influencing findings, most obviously when there is some subjectivity in assessment, leading to biased results. Blinding (sometimes called masking) is used to try to eliminate such bias.

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