What is one key difference between the alternate forms and test-retest methods of establishing test reliability?
a) Item sampling is a concern in the alternate forms method, but is not a concern in the test-retest method.
b) Different examinees are used for the alternate forms method, while the same examinees are used for the test-retest method.
c) Practice effects may be significant for the alternate forms method, but are not usually a concern for the test-retest method.
d) Timed tests are not appropriate for the alternate forms method, but are appropriate for the test-retest method.
a
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