The validity of a test can be established through comparison of test scores with an independent criterion.

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Validity refers to how well a test measures what it is supposed to measure. Establishing validity through comparison of test scores with an independent criterion (criterion-related validity) is one common method. This involves comparing the test results to an external standard or outcome to see how well the test predicts or correlates with this criterion.

The Validity of a Test Can Be Established Through Comparison