Test validity refers to validating the appropriate use of a test score for a specific context or purpose. Validity is determined by studying test results in the intended setting of use, as a test may be suitable for one purpose but not another. Validity is a matter of degree rather than an absolute quality, and establishing validity requires empirical evidence and theoretical justification that the intended inferences from test scores are adequate and appropriate.

1. What is test validity and test validation? Tests themselves are not valid or invalid. Instead, we validate the use of a test score.

10. This analogy makes it clear that determining the reliability of a test is an important first step, but not the defining step, in determining the validity of a test.

11. Reliability Is the degree to which an assessment tool produces stable and consistent results.

40. Validity Refers to how well a test measures what it is purported to measure.

42. Types of Validity

54. How do we use simple test analysis on our school.