A measure of whether a test assesses what is intended that is based on the correlation between the test score and some external criterion (e.g., a correlation between a scholastic aptitude test score and college grades).
Predictive validity is a form of criterion-referenced validity in which test scores are compared with performance that is measured sometime in the future. The predictor variable is the test and the criterion variable is the future performance, often on the job or in school.
The extent to which a test predicts a known association between what your measuring and something else, based on empirical data. Measured after the examinees have had a chance to exhibit the predicted behavior.
The predictive validity of a test, like the concurrent validity, is estimated statistically. Predictive validity is specifically concerned with the extent to which a test can predict examinees' future performances as masters or non-masters. It is particularly important for tests used in such applications as selection or admissions.
The ability of a score on one test to forecast a student's probable performance on another test of similar skills. Predictive validity is determined by mathematically relating scores on the two different tests. Raw Score The first score obtained in scoring a test, which is often the number of correct answers. Sometimes it is the number right minus a fraction of the number wrong, the time required to complete the test, the number of errors, or some other number obtained directly from the test's administration.
Reliability of a measurement expressed in terms of its ability to predict the criterion: an example would be an academic aptitude test that was validated against subsequent academic performance. Last, 1988