Evaluating Tests

1. Validity

1.1. Definition

1.2. Content Validity Evidence

1.3. Criterion-Related Validity Evidence

1.3.1. Concurrent Criterion-Related Validity Evidence

1.3.2. Predictive-Validity evidence

1.3.3. Construct Validity Evidence

2. Reliability

2.1. Definition

2.2. How to estimate

2.2.1. Test-Retest

2.2.2. Alternate Forms

2.2.3. Internal Consistency

2.2.3.1. Spilt Halves

2.2.3.2. Problems

2.3. Interpreting Coefficients

2.3.1. Principle 1

2.3.2. Principle 2

2.3.3. Principle 3