What is the difference between criterion- and norm-referenced assessment?

Added: 27 October 2026

Criterion-referenced assessment shows attainment of defined competencies, while norm-referenced assessment shows position relative to a comparison group.

Core approach and implementation process

In criterion referencing every learner may cross the proficiency threshold; success does not depend on peers. Norm referencing uses a standardization group's distribution to report percentiles or standard scores. The same raw score can occupy different positions in different norm groups. Item formats may look alike; interpretation purpose differs.

Classroom practice, monitoring and cautions

Criterion information suits checking outcomes, while norm information may suit rank-based selection. Cut scores require reasoned standard setting; using the class mean automatically is not a criterion. Reports specify norm group, date, uncertainty and purpose. One score should not carry a high-stakes decision alone.

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Revision history

27 October 2026 — Article added.