---
title: Invalidity
description: "Contamination of scores by systematic error, see large entry for [validity](https://www.psyctc.org/psyctc/glossary2/validity/) and entries for its various components."
url: "https://www.psyctc.org/psyctc/glossary2/invalidity/"
updated: "2021-11-15"
category: All OM book glossary entries
---

# Invalidity

Contamination of scores by systematic error, see large entry for [validity](https://www.psyctc.org/psyctc/glossary2/validity/) and entries for its various components.