Validity

'''Validity''' or '''Valid''' may refer to: {{TOC right}} ==Mathematics== * Validity (logic), a property of a logical argument

==Statistics== * Validity (statistics), the degree to which a statistical tool measures that which it is purported to measure ** Statistical conclusion validity, establishes the existence and strength of the co-variation between the cause and effect variables ** Test validity, validity in educational and psychological testing ** Face validity, the property of a test intended to measure something ** Construct validity, refers to whether a scale measures or correlates with the theorized psychological construct it measures ** Content validity, the extent to which a measure represents all facets of a given construct ** Concurrent validity, the extent to which a test correlates with another measure ** Predictive validity, the extent to which a score on a scale or test predicts scores on some other measure ** Discriminant validity, the degree to which results a test of one concept can be expected to differ from tests of other concepts that should not be correlated with this one ** Criterion validity, the extent to which a measure is related to an outcome ** Convergent validity, the degree to which multiple measures of the same construct lead to the same conclusion

==Science== * Internal validity, the validity of causal inferences within scientific studies, usually based on experiments * External validity, the validity of generalized causal inferences in scientific studies, usually based on experiments * Valid name (zoology), in animal taxonomy * Validly published name, in plant taxonomy

==Other uses==

* Valid (number format), a universal number format (unum type III) * Valid (engraving company), a Brazilian company * VALID (Video Audio Line-up & IDentification), part of the '''GLITS''' broadcast television protocol *Validity and liceity (Catholic Church), concepts in the Catholic Church.

==See also== *{{in title}} *Validation (disambiguation)