Validity and Reliability Evidence

1. Validity

1.1. Content Validity Evidence

1.2. Criterion-Related Validity

1.2.1. A. Concurrent validity evidence

1.2.2. B. Predictive validity evidence

1.3. Construct validity evidence

2. Reliability

2.1. Test–retest

2.2. Alternate-form estimates

2.3. Internal consistency estimate

2.3.1. Split-half and odd–even estimates

2.4. Kuder–Richardson methods

3. Interpreting Validity Evidence

3.1. The strength of validity evidence is based upon validity coefficient and the reason for the test.

3.2. Group variability affects the strength of the validity coefficient.

3.3. Validity coefficients should be considered in terms of the relevance and reliability

4. Resources

4.1. Resource