Glossary Term
Z-Score
Performance MetricsEN
Definition
A method for converting an individual score into a standard form. The z-score indicates how far and in what direction an item deviates from its distribution's mean, expressed in units of standard deviation. Calculation of a z-score requires knowledge about the population's standard deviation and mean.
Extended Notes
Source: National Cancer Institute, NCI Thesaurus 26.09d, C68741. 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
Standard ScoreZ ScoreZ-Score
References
- NCI Thesaurus 26.09d — Z-Score (C68741)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C68741. NCI definition, reproduced without modification under CC BY 4.0.
- Individualized Z -Score Classification of Jump Load and Its Association With Countermovement Jump Performance Throughout a Division I Volleyball Season. — J Strength Cond Res, 2026-10-20 (PMID 42302193; literature)
- Enhanced liver fibrosis score is associated with cognitive performance during an 11-year follow-up period. — Hepatol Commun, 2026-10-19 (PMID 42900153; literature)
- Z-Score Calculators for Cross Sectional Area to Height Ratio of the Aortic Root and Ascending Aorta in Healthy Children. — Pediatr Cardiol, 2026-10-23 (PMID 42909614; literature)