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Strategies to enhance reliability

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Strategies to enhance reliability Objectively Scored Tests Write “better” items Lengthen test Manage item difficulty Manage item discrimination Subjectively Scored Tests Training of scorers Reasonable rating scale Lengthen test Considerations: Time available for testing Fatigue of examinees Ability to construct good test items Point of diminishing returns – increasing test length by a lot will increase reliability but not enough to make it worth the testing time needed . Strategies to enhance reliability Objectively Scored Tests Write “better” items Lengthen test Manage item. testing Fatigue of examinees Ability to construct good test items Point of diminishing returns – increasing test length by a lot will increase reliability but not enough to make it worth the testing

Ngày đăng: 07/09/2015, 13:44

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