Validity

1. Concurrent criterion-related validity evidence - yields a numeric value scored by comparing a new test and to an established test to determine validity.

2. Content Validity Evidence - the simplest test, that measures if the test measures instructional objectives.

3. Criterion-Related Validity Evidence

3.1. Predictive validity evidence - determines how well the test predicts future behavior from students.

4. Construct Validity Evidence - any information that lets you know if the results of a test correspond to what you would expect.