Criterion validity
Criterion Validity
Criterion validity (pronunciation: kri-teer-ee-uhn va-lid-i-tee) is a type of validity used to determine the accuracy of a measure or test. It is a parameter used in psychometrics that gauges the extent to which a test score is an effective measure of a theoretical construct or concept, by comparing it with some external criterion.
Etymology
The term 'criterion' originates from the Greek word 'kriterion' which means 'a standard for judging', and 'validity' comes from the Latin word 'validus' which means 'strong'. Thus, 'criterion validity' essentially refers to the 'strength of a standard for judging'.
Types of Criterion Validity
Criterion validity is further divided into two types:
1. Concurrent validity: This type of validity is determined when the criterion measures are obtained at the same time as the test scores. This means the test is validated by comparing it to a benchmark test and the test scores should correlate with the benchmark scores.
2. Predictive validity: This type of validity is determined by the degree to which a test can predict future outcomes. For example, if a test is designed to predict success in a certain job, the scores obtained from this test can be compared with the job performance ratings.
Related Terms
See Also
External links
- Medical encyclopedia article on Criterion validity
- Wikipedia's article - Criterion validity
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