MGA Growth Report

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MGA Grade 6 Math · 2025-26
Report Level:
Assessment Window
12
/12 testlets
BOY: T1–T3  |  Compare: T10–T12

360 Report

Comprehensive view of student progress and growth across the classroom.

Proficiency Forecast Distribution

Forecast Comparison

Forecast category rates vs. state, district, and school.

Mastery Growth Index

Each dot shows a student's growth score.

Growth Comparison

Growth category rates vs. state, district, and school.
Mastery Growth Index Weight Explorer Adjust how ability growth and content mastery contribute to the Mastery Growth Index
Ability
50%
Mastery
50%
Mastery Growth Index = 50% × Ability Growth + 50% × Mastery Rate (Mastered / 12). Changing the weight shifts the diagonal category boundaries and recalculates student Mastery Growth Index values.
Current Thresholds: Negative < 0.00 Limited 0.00–0.20 Meaningful 0.20–0.40 Significant > 0.40 Fixed thresholds (year-round)

Student Details

Proficiency forecast, Mastery Growth Index category, and assessment completion for each student.

Standards Mastery by Student

Each cell shows whether a student has mastered (✓), approached (~), or not met (✗) the standard. Gray cells indicate the standard has not yet been assessed for that student. Level 3 = mastered.

Testlet Details

For each testlet completed by the class, the distribution of student performance levels and the standards assessed. Level 3 indicates mastery.

Standards Mastery Report

Student mastery of content standards based on testlet performance.

Standards Mastery by Student

Each cell shows whether a student has mastered (✓), approached (~), or not met (✗) the standard. Gray = not yet assessed.

Student Details

Individual student forecast categories and standards mastery counts.

Proficiency Forecast

Student forecast category distribution based on projected proficiency.

Proficiency Forecast Distribution

Classroom distribution across forecast categories.

Forecast Comparison

Forecast category rates across reporting levels.

Student Details

Individual student forecast categories and assessment completion.

Growth Report

Mastery Growth Index analysis showing ability change and content mastery across the classroom.

Mastery Growth Index Distribution

Classroom distribution across Mastery Growth Index categories.

Growth Comparison

Growth category rates across reporting levels.

Student Details

Individual student Mastery Growth Index scores, growth categories, and assessment completion.

Growth v2 Report

Split-minimum MGI: mastery contributes from testlet 3, ability growth from testlet 6.

Split-Minimum MGI Formula

Each component of the Mastery Growth Index activates at a different point in the year.
Content Mastery Component
Active from testlet 3. Counts standards mastered out of 12 total.
—
Ability Growth Component
Active from testlet 6. Compares BOY ability to current ability estimate.
—
Current formula: MGI = 50% × Ability Growth + 50% × Mastery Rate (Mastered / 12)

Mastery Growth Index Distribution

Classroom distribution across Mastery Growth Index categories (split-minimum formula).

Growth Comparison

Growth category rates across reporting levels.

Mastery Growth Index

Each dot shows a student's growth score (split-minimum formula).

Student Details

Individual student MGI scores using split-minimum formula. Mastery contributes from T3, ability from T6.

MGI Explorer

2D view of student ability growth vs. mastery rate with adjustable weighting.

Mastery Growth Index Weight Explorer

Adjust how ability growth and content mastery contribute to the Mastery Growth Index.
Ability
50%
Mastery
50%
MGI = 50% × Ability Growth + 50% × Mastery Rate (Mastered / 12). Changing the weight shifts the diagonal category boundaries and recalculates MGI values.
Current Thresholds: Negative < 0.00 Limited 0.00–0.20 Meaningful 0.20–0.40 Significant > 0.40

Ability Growth vs. Mastery Rate

Each dot is a student. Diagonal bands show MGI growth categories. Drag the weight slider to see how the boundaries shift.
0%25%50%75%100%
Mastery Rate (Testlets Mastered / 12) →

Growth–Forecast Triangle

Students plotted by Mastery Growth Index (x-axis) against distance from proficiency (y-axis).

Student Triangle

Each dot is a student. X = MGI (growth), Y = CI midpoint distance from proficiency cut.

Summative Report

Final proficiency measure and testlet completion summary for each student.

Achievement Level Distribution

Classroom distribution across achievement levels.

Achievement Comparison

Achievement level rates across reporting levels.

MAST Grade 6 Performance Levels

Official cut scores from Montana Office of Public Instruction.

Scale Score Distribution

Student scale scores mapped to achievement levels (250–400).

Student Results

Final summative scores and testlet completion for each student.

360 Summative Report

End-of-year comprehensive view combining final achievement levels, growth, and standards mastery.

Achievement Level Distribution

Classroom distribution across final achievement levels.

Achievement Comparison

Achievement level rates vs. state, district, and school.

Mastery Growth Index Distribution

Growth Comparison

Growth category rates vs. state, district, and school.

Mastery Growth Index

Each dot shows a student's Mastery Growth Index score.

Student Results

Final achievement level, scale score, Mastery Growth Index category, and testlet completion.

Standards Mastery by Student

Each cell shows whether a student has mastered, approached, or not met the standard. Level 3 = mastered.

Testlet Details

Distribution of student performance levels per testlet.