Legacy MCAS Achievement Results for Massachusetts Schools, 2007-2022

Legacy Massachusetts Comprehensive Assessment System (MCAS) results for grades 3-10 and high school science from 2007 to 2022. The dataset includes achievement levels, participation rates, average scaled scores, and median student growth percentiles. It is published by the Massachusetts Department of Elementary and Secondary Education on the educationtocareer.data.mass.gov platform.

Use Cases

• Analyze trends in average scaled scores (CPI) and proficiency rates (P_PCT, A_PCT) by school (ORG_NAME) and subject (SUBJ) over time (SY).
• Compare student growth across demographic groups (STU_GRP) using the median student growth percentile (MEDIAN_SGP) and its inclusion flag (MEDIAN_SGP_INCL).
• Assess participation rates (P_CNT, TOT_STU_INCL) and achievement level distributions (WF_CNT, NI_CNT, A_CNT) by grade (GRD) and district (DIST_NAME).

Strengths

• Covers 15 years of standardized test results (2007-2022) for multiple grades and subjects.
• Includes detailed breakdowns by student group (STU_GRP) and multiple performance metrics like CPI and MEDIAN_SGP.
• Data is officially sourced from the Massachusetts Department of Elementary and Secondary Education.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Student growth percentile calculation methodology changed over time, as noted in the description.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Massachusetts Department of Elementary and Secondary Education (DESE)

Collection Method

Statewide standardized assessment administration.

Time Range

2007 to 2022, with subject-specific coverage periods as detailed.

Freshness

Last updated 2026-03-03 22:01:23; freshness should be verified.

Geography

Massachusetts, United States.