Glossary Term
Two-Sided Test
Performance MetricsEN
Definition
A statistical hypothesis test that controls directional errors if rejection of a hypothesis is the result of a directional decision. The two-sided test has less statistical power than the one-sided test.
Extended Notes
Source: National Cancer Institute, NCI Thesaurus 26.09d, C64267. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-20. No individual clinical interpretation or human reviewer is asserted.
Also Known As
2-Sided TestTwo-Sided Test