validity

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validity

 [vah-lid´ĭ-te]
the extent to which a measuring device measures what it intends or purports to measure.
construct validity the degree to which an instrument measures the characteristic being investigated; the extent to which the conceptual definitions match the operational definitions.
content validity verification that the method of measurement actually measures what it is expected to measure; see also face validity.
external validity the extent to which study findings can be generalized beyond the sample used in the study.
face validity a type of content validity, determining the suitability of a given instrument as a source of data on the subject under investigation, using common-sense criteria.
internal validity the extent to which the effects detected in a study are truly caused by the treatment or exposure in the study sample, rather than being due to other biasing effects of extraneous variables.
predictive validity the effectiveness of one set of test or research results as a predictor of the outcome of future experiments or tests.

va·lid·i·ty

(vă-lid'i-tē),
An index of how well a test or procedure in fact measures what it purports to measure; an objective index by which to describe how valid a test or procedure is.

validity

[valid′itē]
(in research) the extent to which a test measurement or other device measures what it is intended to measure. A data collection tool should accurately reflect the concept that it is intended to measure. Kinds of validity include construct validity, content validity, current validity, and predictive validity. Compare reliability.

methodological quality

The extent to which the design and conduct of a trial are likely to have prevented systematic errors (bias). Variation in quality can explain variation on the results of trials included in a systematic review. Rigourously designed (better quality) trials are more likely to yield results that are closer to the “truth” (i.e., unbiased).

va·lid·i·ty

(vă-lid'i-tē)
Truthfulness; the ability of a test to measure correctly as intended.

validity 

The extent to which a measurement correctly measures what it is supposed to measure or to which extent the findings of an investigation reflect the truth. In health sciences, validity is commonly assessed by determining the sensitivity and specificity factors. See reliability; sensitivity; specificity.

va·lid·i·ty

(vă-lid'i-tē)
Index of how well a test or procedure in fact measures what it purports to measure; an objective index by which to describe how valid a test or procedure is.

validity,

n the degree to which data or results of a study are correct or true.
References in periodicals archive ?
With that presupposition (4) would be a valid argument, but not in virtue of being of the form (p [reune a] q; q / [por lo tanto] p); but of the form (p -superfluous premise-; ([for all]x)Fx / [por lo tanto] ([existente en]x)Fx).
The main message of Powell's book is that many of the arguments advanced by participants in these controversies are not valid, and constructing valid arguments about these issues is harder than is commonly assumed.
The term "sound" is introduced to characterize a valid argument all of whose premisses are true.
HURLING KILKENNY do not deserve to be so short for their back-door duel with Limerick at Nowlan Park and there is a valid argument to be made for backing the visitors to win by two points or more at 9-2, writes David Jennings.
There is no new substantial and valid argument presented to warrant a reconsideration.
In the blog post Church wrote: "You'd be hard pushed to find a single Tory/Ukip zealot on social media who's willing to put forward any valid argument to counter my opinion.
OK, that last is a valid argument, but if the $75,000 sim at the flight school could let you accomplish half or more of your training at, say, $45/hour, that sure beats the pants off a Skyhawk at $125.
For a General Election this is a valid argument, but for a local and European election it is total nonsense.
There is a valid argument that this season's cup run has been even more impressive for Wigan given Rosler, only appointed in December, has propelled his team into the play-offs in spite of a crowded fixture list which included six Europa League games.
If Mateo feels the need and has a valid argument, he will be sure to voice it.
This is a valid argument as long as the bonds can be cashed, at a reasonable market value, in good time.