validity

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Related to Face validity: Predictive validity

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 ?
Face validity. We contacted 5 additional female experts in the research and teaching of sexual and reproductive health and adolescence, whose inclusion criteria included having a postgraduate degree in health (specialization, masters) and 10 or more years of experience.
The results of the content and face validity showed that the items were comprehensible and culturally-tailored to the Iranian female adolescents.
[4] Oral examinations are appealing because of their high face validity, their flexibility, and the possibility that they measure aspects of clinical competence that are perhaps not tapped in written examinations.
While content validity requires a detailed description of the content to serve as a checklist when evaluating an instrument, face validity is a less systematic method of establishing whether an instrument's items align with the intended content (McMillan & Schumacher, 2010; Trochim, 2006).
These software issues may have led to the low face validity reported in the present study (5.3/10).
However, they have low face validity in view of the lack of similarity with living tissues since the elastic properties of the tubes do not correspond to the properties of living vessels.
Finally, NIC intended the ERI to have high face validity with straightforward instructions and item content for the areas assessed.
Two registered nurses developed the questionnaire and a panel of 13 (eight registered nurses, three patients, the unit manager, and an external research professional) reviewed the instrument for content and face validity. The survey was administered from February 1 to March 1, 2017.
Face validity measures the realism of various components and aspects of the simulator, whereas the content validity assesses the pedagogical value and training effectiveness of the simulation platform [6].
Face validity addresses phenomenological similarities between a model and a human disease, but superficial similarities do not reliably imply the same underlying mechanisms.
In order to do this we conducted two studies; the first examined the face validity of the ASSIST in a sample of Pacific People resident in New Zealand in order to determine if any modifications to the existing ASSIST questionnaire (Version 3.0) were required to enhance its appropriateness for this population; the second study was a formal examination of the concurrent, construct and discriminative validity of the ASSIST questionnaire that had been modified to reflect the results obtained from the first study.
Our study utilized measures with face validity that examined e-cigarette product characteristics, including type of product (disposable, tank system, liquid refills), nicotine content, flavour, etc., which were visible features directly observed on product packaging by our trained research assistants.