---
title: p value
description: "The probability that a finding as large or larger than found in the study would have occurred given the null hypothesis and *n* in your data. Conventionally *p* < .05, i.e. a probability less than one in twenty, is taken…"
url: "https://www.psyctc.org/psyctc/glossary2/p-value/"
updated: "2023-08-21"
category: All OM book glossary entries
---

# p value

The probability that a finding as large or larger than found in the study would have occurred given the null hypothesis and *n* in your data. Conventionally *p* < .05, i.e. a probability less than one in twenty, is taken as showing "statistical significance" (q.v.) See [null hypothesis](https://www.psyctc.org/psyctc/glossary2/null-hypothesis/) and also [inferential testing](https://www.psyctc.org/psyctc/glossary2/inferential-testing-tests/) for details.