validity

1. Construct Validity Evidence

1.1. test results correlate to the scores

1.2. Variables are predicted by some theory

2. Interpreting Validity Evidence

2.1. The Strength of the Coefficient

2.2. The purpose of the test

2.3. Group Variability affects the strenght of the Coefficient

3. validity evidence

3.1. precise

3.2. reliable

3.3. facts

4. Content validity

4.1. Compare the test item to the objective

5. Criterion-related validity evidence

5.1. Concurrent validity evidence

5.2. Predictive validity evidence