Reliability

1. Kuder-Richardson methods

1.1. Another way of estimating the internal consistency of a test by measuring the extent of commonality in one form to another with corresponding items.

2. Reference: Kubiszyn & Borich (2000) Educational Testing & Measurement: Classroom Application and Practice

3. Test-Retest or Stability

3.1. Estimating reliability by giving test twice to students correlating the two scores.

4. Alternate forms or Equivalence

4.1. Two equivalent forms of a test used to obtain an estimate of the reliability of the scores from the test.

5. Internal Consistency

5.1. Test items correlate with each other making test internally consistent.

5.1.1. Method called split halves determines the correlation between the two tests.