Validity and Reliability
by Marquita R. Williams-Melvin

1. Validity
1.1. Content Validity Evidence
1.2. Criterion-Related Validity Evidence
1.2.1. Concurrent Criterion-Related Validity Evidence
1.2.2. Predictive Validity Evidence
1.3. Construct Validity Evidence
2. Reliability
2.1. Test-Retest or Stability
2.2. Alternative Forms or Equivalence
2.3. Internal Consistency
2.3.1. Split-Half Methods
2.3.2. Kuder-Richardson Methods
2.3.3. Problems with Internal Consistency Estimates