Alternate forms reliability is computed by a. Measuring how the test changes over time b. Dividing the test in half and calculating to what extent half of the scale correlates with the other half of the scale c. Correlating two versions of one test to one another d. Calculating the extent to which an item on a test correlates with the total score of the test. e. Calculating the extent to which two administrations of the same test correlate with one another
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