reliability.

the extent to which something can be depended on, including the consistency of repeated measurements

Use it for

Words that belong together

• test reliability
• inter-rater reliability
• reliability of evidence

On the page

The team tested the questionnaire's reliability over two weeks.

Agreement between coders improved the reliability of the classification.

The source's reliability must be assessed independently of its popularity.

Usage notes

Primary curation section: Academic. A measure can be reliable yet fail to measure the intended construct; reliability and validity are distinct. Usually uncountable. Related adjective: reliable.