What type of assessments utilize statistical analysis for comparison purposes?

• A. Informal assessments
• B. Diagnostic assessments
• C. Norm-referenced assessments
• D. Formative assessments

Answer: (C)

Norm-referenced assessments are designed to compare an individual's performance to that of a larger group, often referred to as a "norm group." These assessments use statistical analysis to determine how a student's scores relate to the scores of peers. By utilizing percentiles, standard deviations, and other statistical measures, norm-referenced assessments provide insights into where a student stands in relation to a specific cohort, enabling educators to gauge performance levels and identify areas needing improvement.

This type of assessment is valuable in educational settings as it helps in identifying whether a student is performing above, at, or below the average level of the norm group. In contrast, informal assessments typically rely on observational data and qualitative measures rather than statistical analysis, while diagnostic assessments focus on identifying specific learning needs rather than comparison with peers. Formative assessments are often used for tracking student progress over time but do not emphasize comparison with a broader population through statistical means.