Learn / Glossary
Omitted-variable error
Attributing a relationship to one factor while ignoring another factor that may explain both.
Published 04 August 2026Updated 04 August 2026
An omitted-variable error overlooks a confounder that influences the variables being compared. A causal claim becomes stronger when plausible third variables are measured, controlled, randomized, or otherwise ruled out.
EvidenceResearch Methods
#zxbc39ri