VALIDITY

Validity

In science and statistics, validity is the extent to which a concept, conclusion or measurement is well-founded and corresponds accurately to the real world. The word "valid" is derived from the Latin validus, meaning strong. The validity of a measurement tool is considered to be the degree to which the tool measures what it claims to measure.

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validity

Noun

  1. The state of being valid, authentic or genuine.
  2. Having legal force.
  3. A quality of a measurement indicating the degree to which the measure reflects the underlying construct, that is, whether it measures what it purports to measure (see reliability).


The above text is a snippet from Wiktionary: validity
and as such is available under the Creative Commons Attribution/Share-Alike License.

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