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measurement bias

Bias resulting from systematic differences in how outcomes are measured in treatment comparison groups in a study.


ascertainment bias, detection bias, observer bias

Full forklaring:

Measurement bias is a systematic distortion of the results of treatment comparisons that can occur when people measuring outcomes - whether researchers, healthcare providers, or study participants - are aware of the treatment allocation when they are measuring outcomes.

Blinding of the people measuring outcomes is used to reduce the risk of this bias.

se også:

bias  ·  objective outcome

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