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 ?
The method of evaluating the predictive validity of pressure ulcer risk assessment scales applied in the remainder of the scales was not suitable.
The predictive validity results obtained for the modified stress questionnaire and the components were promising.
What is more, in view of the lack of comparable meta-analyses conducted on British samples, a country specific analysis of the validity of GMA and specific cognitive ability tests is warranted in order to accurately assess the predictive validity of such tests in the UK.
Although it has been stressed that web-based data-collection methods have several advantages over other collection methods, such as low cost, short response delay and high selectivity (Weible & Wallace 1998; Forrest 1999; McNeisch 2000), there is still considerable discussion among researchers on an important issue: what is the predictive validity of web-based surveys?
An even stronger test of the predictive validity of behavior/reinforcement theory (and other theories) would be to account for variance in the target problem while simultaneously including alternate explanations for the target problem.
This situation has led to a dilemma in the USA, in which relying on cognitive ability tests has been seen by many organisations and researchers as sensible from the perspective of maximizing predictive validity, but doing so threatens the achievement of social objectives, such as overcoming past social inequities, pluralism, and creating an ethnically diverse workforce (Sackett & Wilk, 1994; Sackett et al.
The relation between earnings quality and its three measures is Link 3 in the Predictive Validity Model.
Based on an extensive review of the school learning literature, Bloom theorized that the upper limits for the predictive validity of the first two factors (cognitive and affective antecedents) would be .
My arguments against the SAT I were based not on predictive validity but on pedagogical and philosophical convictions about achievement, merit, and opportunity in a democratic society.
Namely, the cohesion subscale has been found to have more consistent factorial stability and predictive validity (Barber & Buehler, 1996; Crowley, 1998; Green et al.
they mimic some aspect of the human condition) or predictive validity (i.

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