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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Distribución al azar

Randomization (RAN-duh-mih-ZAY-shun)
When referring to an experiment or clinical trial, the process by which animal or human subjects are assigned by chance to separate groups that compare different treatments or other interventions. Randomization gives each participant an equal chance of being assigned to any of the groups.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.