Validity and Reilability

1. What is Validity

2. TYPES OF VALIDITY Content Validity Criterion Related Validity

2.1. Content Validity Evidence: inspecting test questions to see if they correspond to what the user decides is covered

2.2. Concurrent: measures that can be administered at the same time as the measure to be validated

2.3. Predictive: how well the test predicts some future behavior

2.4. Construct Validity Evidence: relationship to other info corresponds well with the same theory

3. Validity is important because teachers mustmake sure that the test is measuring what itis intended to measure.

4. REFERENCE: Kubiszyn, T., and Borich, G. D. (2013). Educational testing & measurement: Classroom Application and practice. (10th ed.). Hoboken, NJ: Wiley & Sons, Inc.

5. What is reliability?

6. The Various Types of Reliability

6.1. Test-Retest/Stability: the method of estimating reliability and it is given twice.

6.2. Alternate Forms/Equivalence: used to obtain an estimate of the reliability of the scores

6.3. Internal Consistency: making sure items correlate with one another

7. Reliability is important because teachers must make sure that test yield the scores consistently.