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Use the following set of data from a criterion-referenced test; which item should probably be eliminated? Item No. passing passing Difference pre-test post-test +2% +30%

Use the following set of data from a criterion-referenced test; which item should probably be eliminated? Item No. passing passing Difference pre-test post-test +2% +30% +25% +60% -6% +49% +4% +50% +69% 07 10

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