validity


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Related to validity: Content validity

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.

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.
References in periodicals archive ?
'The efficiency of utilising the passports, that if we keep it at five years validity period, there is a lot of inefficiency, particularly of the part of the government.
The objective of the study was to determine the predictive validity of the Uniform Entrance Test for academic performance in the first two years of various health science programs (medicine, dentistry and pharmacy) as demonstrated by scores on the first four semester examination.
This tool has excellent reliability (Cronbach alpha 0.94) but unluckily the inventors could not establish its construct validity due to insufficient sample.4 Construct validity can be established by factor analysis keeping in view five respondents per item.5 Construct validity is the extent to which any tool or trial measures what it is supposed to gauge.6 Construct validity is broad-ranged.
'Resolved by the House of Representatives, the Senate of the Philippines voting separately, to extend the validity and period of availability of the Fiscal Year 2018 appropriations for maintenance and other operating expenses and capital outlays to December 31, 2019, amending for the purpose Section 61 of the General Provisions of Republic Act No.
This study described the use of instrument validity within manuscripts published in JAE between 2007 and 2016 using the theory of planned behavior as the guiding framework (Ajzen, 1991).
Philippine passports issued prior to January 01 will continue to have a five (5)-year validity.
The DICT previously announced the one-year validity of prepaid load would start on Jan.
Kabayans, here's the good news: The cost of renewing and getting a new e-passport is still the same (Dh240) even though its validity has been extended to 10 years, up from the previous five-year validity, Philippine consul-general Paul Raymund Cortes told Khaleej Times.
In particular, Smart, TNT and Sun prepaid loads worth P300 and above shall moving forward have a one-year validity, regardless of the validity period printed on the physical cards already out in the market.
The Philippine government began issuing passports with 10-year validity on Wednesday (January 3) for Filipinos 18 years and above.
There have also been changes in the way in which main measurement concepts such as "validity" have been understood, particularly in relation to test and item bias.
Moreover, plans above Rs149 will offer Jio Prime members more data and extra validity on the first recharge.