Definition: Key variable

Category: Statistical methodologies

A variable in common between two datasets, which may therefore be used for linking records between them. A key variable can either be a formal identifier or a quasi-identifier. http://ec.europa.eu/eurostat/ramon/statmanuals/files/SDC_Handbook.pdf
Source:
ESSNet SDC (Network of Excellence in the European Statistical System in the field of Statistical Disclosure Control), under the coordination of Anco HUNDEPOOL, "Handbook on Statistical Disclosure Control", version 1.2 (2010 Edition)
Created:
Updated: