Missouri

Missouri EOC Score Analysis: Trends, Proficiency Gaps, and Test Prep Strategies

Understanding Missouri High School EOC Assessments

Missouri high school End-of-Course (EOC) assessments play a central role in accountability under MSIP 6. Districts administer four core EOCs:

  • Algebra I
  • English II
  • Biology
  • Government

While all four assessments impact accountability, instructional focus in most districts remains heavily centered on math and reading, which means Algebra I and English II often receive the most structured support.

Missouri EOC Score Trends: Biology and Government

Statewide data from the 2022-23 through 2024-25 school years shows consistent patterns in performance.

Biology (Proficient + Advanced):

  • 39% → 39% → 37%
  • Roughly 60% of students are not reaching proficiency

Government (Proficient + Advanced):

  • 39% → 41% → 41%
  • Below Basic increased from 5% to 8%

Compared to other subjects, Algebra I posted the strongest gains in 2024-25, while English II remained relatively flat.

A key trend in both Biology and Government is the size of the Basic performance band.

  • Biology: about 40% of students score Basic
  • Government: about 52% of students score Basic

In both subjects, the Basic category is the largest performance group, indicating that a significant portion of students are near proficiency but not crossing the threshold.

The Movable Middle and Missouri Accountability

The concentration of students in Basic highlights the “movable middle.”

These students:

  • Are below proficiency but not in the lowest performance tier
  • Demonstrate partial mastery of Missouri Learning Standards
  • Are often within reach of proficiency with targeted support

In Government, more than half of students fall into this category. In Biology, nearly 40% are in Basic, with an additional group in Below Basic. Combined, more than 60% of Biology students fall below proficiency, with many clustered just below the cutoff.

Under MSIP 6, this matters because accountability calculations include three years of data. Flat or declining performance is carried forward, making it harder for districts to recover without consistent improvement, particularly when large groups of students remain just below proficiency.

Technology-Enhanced Items (TEIs) on Missouri EOCs

Missouri EOCs are delivered through the DRC Insight platform and include Technology-Enhanced Items (TEIs). The DRC Insight platform is widely used across states, which means many students practice in one environment and test in another unless item types are intentionally aligned.

These items:

  • Require students to interact with content beyond multiple choice
  • Focus on specific skills and applied understanding
  • Limit the effectiveness of general test-taking strategies

Biology includes a practical component that requires students to apply scientific concepts. Government TEIs often focus on interpretation and analysis within social studies contexts.

Many practice tools emphasize TEIs in math and ELA but provide less exposure in social studies, limiting how often students encounter TEI formats aligned to Government standards during instruction. When TEI exposure is limited during instruction, students may struggle to demonstrate their understanding within the format of the assessment.

How to Use Missouri EOC Data for Test Prep and Intervention

Districts can take a more targeted approach to test prep by focusing on key data points.

Analyze the Basic performance band

  • Compare your district’s percentage of Basic students to the state
  • A larger Basic band signals an opportunity for focused intervention
  • Often represents the highest-leverage group for improving proficiency rates

Review strand-level performance

  • Biology strands:
    • Molecules to Organisms
    • Ecosystems
    • Heredity and Genetics
    • Earth and Human Activity
    • Engineering Design
  • Government strands:
    • Principles and Processes of Governance
    • Civic Participation
    • Geography and Cultural Interactions
    • Economic Concepts

Identify which strands are keeping students in Basic versus pushing them into Below Basic.

Evaluate year-over-year trends: Determine whether your district is improving, flat, or declining relative to the state

Assess TEI exposure: Consider how often students engage with TEI-style questions during the year. The specificity on mastery that TEI’s can reveal plus the variety of questions students face makes TEI prep key for moving the needle.

Supporting Missouri EOC Preparation Across All Four Subjects

A comprehensive preparation strategy includes consistent practice, standards alignment, and visibility into student progress across all tested subjects, not just math and reading.

Progress Learning supports this approach by providing:

This is especially important in subjects like Biology and Government, where fewer platforms provide consistent TEI practice and standards-aligned support, making it more difficult for districts to maintain balanced preparation across all four EOCs.

External research has shown that consistent use of standards-aligned practice and progress monitoring is associated with measurable improvements in student outcomes across subjects.

Key Takeaways for Missouri EOC Testing Season

Missouri EOC results highlight a consistent challenge across Biology and Government. Large groups of students are close to proficiency but not meeting the standard.

Focusing on the following areas can help districts make meaningful progress:

  • The movable middle
  • Strand-level gaps
  • TEI exposure
  • Multi-year performance trends

This approach helps districts take a more targeted, data-driven path to improving outcomes across all four EOC subjects. Want to see Progress Learning’s EOC content in action? Get in touch here.

Related Articles