Validity and Reliability

1. External Validity

2. Internal Validity

2.1. Face Validity

2.2. Criterion Related Validity

2.3. Construct Validity

2.3.1. Convergent Validity

2.3.2. Discriminate Validity

2.4. Content Validity

3. Equivalency Reliability

4. Stability Reliability

5. Internal Consistency

6. Interrater Reliability