Evidence-Based Practice / Unit 6 EBP 0775 short lesson, about 20 seconds
Gatekeeper Bias
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The idea
Gatekeeper bias arises when someone deciding which patients are approached shapes who ends up in the study.
In practice
A study of palliative care in which only the healthier patients were invited to take part.
Where people slip
Gatekeeping is usually well intentioned and protective. It biases the sample all the same.
Your place on the trail
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Builds on
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