Validity and Reliability
by Robin Callahan
1. Tests or Assessments
1.1. Validity
1.2. Reliablity
1.3. Accuracy
2. Reliability
2.1. Test Related
2.2. Alternate ways of reliability
2.3. Internal consistency
2.3.1. Half and Odd Reliability
2.3.2. Different methods including Richardson
2.3.2.1. Odd
2.3.2.2. Even
3. Validity
3.1. Subject Validity Evidence
3.2. Criterion-Related Evidence
3.2.1. Paralell Valididy Evidence
3.2.2. Predictive Validity