validity

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Related to Content validity: Face validity, Construct validity

validity

[və′lid·əd·ē]
(mathematics)
Correctness; especially the degree of closeness by which iterated results approach the correct result.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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).

Collins Dictionary of Sociology, 3rd ed. © HarperCollins Publishers 2000
References in periodicals archive ?
For content validity, content experts' recommendations about using appropriate dimensions, applying proper order of items in each dimension, proper words in items and appropriate scoring were collected.
The most popular method used for the validity of measurement tools is content validity. (15) The CVI of the MCLHB-DRR scale was found to be 0.99.
Despite considerable evidence of TBC item content validity, we should note that it is extensively based on verbal reports of teachers and students.
A structure of content validity, reliability, EFA, and CFA was undertaken.
For both language and content validity, the fit indices were found to be above 0.90 both on item and scale basis.
Items in Turkish and original language were reviewed by an expert group of 10 people consisting of academicians for suitability of translation and content validity. The experts, whose opinions were taken for content validity, were asked to assess the suitability and comprehensibility of each item by giving 1-4 points [1 point: Not suitable--4 point: very suitable].
Content validity was assessed by a team of experts and the results indicated a satisfactory level of validity and reliability.
Content validity (or face validity) refers to the opinion of the expert on whether the items in the scale represent the domains or concepts proposed for the research.
While works detailing research methods organize the same types of validity in various ways, we adhered to Huck's (2008) conceptual framework of validity, which aligns methods of establishing validity with three overall types: content validity, criterion-related validity, and construct validity.
The high CVR value shows high content validity of the item.
The expert views on the content validity of the scale were evaluated using the content validity index (CVI) (36).
The Persian PAC-QOL questionnaire had good content validity. All the participants filled all the items of the Persian PAC-QOL questionnaire without any item non-response.

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