Commercial achievement tests refers to a typically norm-referenced test that compares a pupil's score to a national group of similar pupils.

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Grading at psychology-glossary.com■■■■■
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Performance standards at psychology-glossary.com■■■
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Deviation at psychology-glossary.com■■■
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Deviation IQ at psychology-glossary.com■■■
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Normative data at psychology-glossary.com■■■
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Single-factor analysis of variance at psychology-glossary.com■■■
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Norm-referenced grading at psychology-glossary.com■■■
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