validity


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validity

[və′lid·əd·ē]
(mathematics)
Correctness; especially the degree of closeness by which iterated results approach the correct result.

validity

the extent to which a measure, indicator or method of data collection possesses the quality of being sound or true as far as can be judged. For example, if a psychological measure, such as an intelligence test, is considered to be valid, this means that it is thought to measure what it sets out to measure. If social survey observations are said to have produced valid data, then they are considered to be true reflection of the phenomenon being studied in the population being studied (e.g. projections of voting behaviour), and the survey method could be said to have validity. Compare RELIABILITY.

In practice, in sociology and the social sciences generally, the relation between indicators and measures on the one hand and the underlying concepts they are taken to represent is often contested (see OFFICIAL STATISTICS, MEASUREMENT BY FIAT).

References in periodicals archive ?
Philippine passports applied and processed beginning from January 3 will get 10-year validity, provided the holder is not a minor, according to a statement released by the Office of Public Diplomacy at the Department of Foreign Affairs (DFA) in Manilaon Wednesday.
10930 which formally extended the validity of the licenses from three to five years.
Philippine President Rodrigo Duterte on Wednesday signed in to law the Republic Act 10928 that will give new Philippine passports a 10-year validity for citizens over 18 years of age.
49: 600MB 4G data, unlimited voice calls and messages, Jio Apps subscription, 3-day validity (300MB 4G data for non-Prime customers)
What is the validity of the measurement instrument?
The validity and reliability of simulation performance evaluation strategies are areas of growing interest.
Ecological validity is the degree to which an assessment of events, activities, participation, or environments reflects everyday life expectations or performance engagement.
Validity is the extent to which one thing, in the same timeframe, predicts another.
independent questions of validity and infringement.
The description of validity provided in these Standards evolved over time to reflect changes in the conceptualization of validity.
Specialists in evaluating education assessment tools explore validity, fairness, and testing of individuals in high stakes decision-making contexts, validity issues in models of teacher evaluation and school accountability, and validity issues in international large-scale assessment programs.
According to the embassy, an expatriate has to pay QR274 against QR185 earlier for the issue of an ordinary fresh passport or reissue of passport containing 36 pages having a 10-year validity (also applicable to minors in the age group 15-18).