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Not What You Meant?  There are 4 definitions for Invalid.

Validity

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About 1 pages (46 words)
Validity Summary

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Dictionary of Environmental Health

validity

An expression of the capability of a scientific study to be able to identify or ascertain that which is being sought. This will depend primarily on the design of the study, the SENSITIVITY and SPECIFICITY of ascertainment techniques, and the conduct of the study itself.

This is the complete article, containing 46 words (approx. 1 page at 300 words per page).

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Validity from Dictionary of Environmental Health. ISBN: 0-203-16591-8. Published: 2003–07–18. ©2009 Taylor and Francis. All rights reserved.



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