In a clinical trial, a flaw in the study design or in the methods used to collect or interpret information that can lead to incorrect conclusions about what the research shows.

For example, bias could be when a researcher or participant knows what treatment is being given, which might make them unconsciously influence the results.

Medical disclaimer

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The Canadian Cancer Society is not responsible for the quality of the information or services provided by other organizations and mentioned on, nor do we endorse any service, product, treatment or therapy.

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