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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Prueba t

T test
A statistical test that is used to find out if there is a real difference between the means (averages) of two different groups. It is sometimes used to see if there is a significant difference in response to treatment between groups in a clinical trial.



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