predictive validity


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validity

 [vah-lid´ĭ-te]
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.

pre·dic·tive va·lid·i·ty

criterion-related validity used to predict performance in a real-life task at a future time. See: construct validity, criterion-related validity.

predictive validity

validity of a test or a measurement tool that is established by demonstrating the ability of a test or measure to predict the results of an analysis of the same data made with another test instrument or measurement tool. See also validity.

pre·dic·tive va·li·di·ty

(prē-diktiv vă-lidi-tē)
Criterion-related standard used to predict performance in a real-life task at a future time.
References in periodicals archive ?
Both the CCMS and PIADS subscales demonstrated low predictive validity in adults 65 yr and over, with correlation coefficient absolute values ranging from 0.
In the final step, we included a holdout choice between four milk options so as to test the predictive validity of the previously obtained WTP estimates.
A review of the DIBELS published in the Mental Measurement Yearbook (Shanahan, 2005) concludes that the measures evidence adequate or better psychometric properties, but lack sound documentation of predictive validity.
Our criteria for inclusion limited our review to studies that targeted kindergarten and first grade students, included screening measures and outcome variables specific to mathematics performance, and reported predictive validity, ROC curves, or sensitivity and specificity analyses.
When the D-IRAP scores for the pleasant trial type were entered into the second step of the model, this produced virtually no increment in predictive validity, Walds's [x.
Zero order correlations and multiple regressions were used to assess this predictive validity.
The GSES's predictive validity would be evidenced via the scale's ability to predict not only tournament performance, but also players' predicted first round scores and pre-round tension/anxiety (see below).
If risk scales do not incorporate constructs relevant to offender change, then change scores should be invalid for reflecting risk reduction (a recent effort to demonstrate the predictive validity of intra-individual change [pre-/posttreatment change scores] was disappointing (5)).
The core committee decided to focus first on predictive validity.
In a series of studies involving French high school students (mean age 14-15 years), the factorial validity, predictive validity, and test-retest reliability of the AAASQ were examined.
In her article, Cohen reports on a study designed to compare the interrater reliability and predictive validity of the FOUR score tool and the Glasgow Coma Scale in pediatric patients.

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