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Glossary

Implicit Association Test (IAT)

Also known as: IAT, implicit bias measurement

Medically reviewed, last updated

The Implicit Association Test is a computerized reaction-time task developed at Harvard that measures the strength of automatic associations between concepts (e.g., 'Black' and 'unpleasant'). Faster reaction times indicating stronger associations are interpreted as a marker of implicit bias.

The IAT is widely used in research on healthcare implicit bias but its predictive validity for individual behavior is debated. The Hoffman 2016 study on Black-patient pain perception bias used direct survey methods rather than the IAT and produced results that have replicated. See our Hoffman 2016 explainer.

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Medical Disclaimer

This glossary entry is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition.