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Related to face validity: Predictive validity
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.
the extent to which the items of a test or procedure appear superficially to sample that which is to be measured.
face validityA type of psychometric validity for which the assessment instrument appears on its face—i.e., by inspection and consideration of the semantic content of the items in the questionnaire—to measure what it is designed to measure.
face validity (fāsˑ v·liˑ·di·tē),
n the degree to which a questionnaire or other measurement appears to reflect the variable it has been designed to measure.
face va·lid·i·ty(fās vă-lidi-tē)
Extent to which items used in a test or procedure appear superficially to sample that which is to be measured.