MAP Testing on Acceleration Denied

The Measurement Gap

Thu, 29 Jan 2026 09:00:00 -0600

This is Part 5 of “The Measurement Gap,” a series examining NWEA’s MAP testing and RIT scores—how they work, why teachers don’t trust them, and how they shape acceleration decisions in Oak Park District 97.

Let’s recap what we’ve learned:

Part 1: MAP testing has a troubled history—teacher boycotts, ethics violations, a federal study showing no impact on student achievement, and a recent for-profit conversion.

Part 2: Despite this, the RIT scale rests on genuinely innovative psychometric design—the Rasch model’s elegant mathematics, an equal-interval scale that enables meaningful growth measurement, and an adaptive algorithm that meets each student where they are.

How Oak Park Uses MAP

Thu, 22 Jan 2026 09:00:00 -0600

This is Part 4 of “The Measurement Gap,” a series examining NWEA’s MAP testing and RIT scores—how they work, why teachers don’t trust them, and how they shape acceleration decisions in Oak Park District 97.

The previous parts of this series examined MAP testing in general: its troubled history, its innovative design, and the legitimate concerns that drive skepticism.

Now we get specific: How does Oak Park District 97 actually use these assessments?

The Cracks

Thu, 15 Jan 2026 09:00:00 -0600

This is Part 3 of “The Measurement Gap,” a series examining NWEA’s MAP testing and RIT scores—how they work, why teachers don’t trust them, and how they shape acceleration decisions in Oak Park District 97.

In Part 2, I explained the genuine innovations behind RIT scores: the Rasch model’s elegant mathematics, the equal-interval scale, the adaptive algorithm that meets each student where they are.

On paper, it’s exactly what you’d want for identifying students ready for acceleration.

The Beautiful Math

Thu, 08 Jan 2026 09:00:00 -0600

This is Part 2 of “The Measurement Gap,” a series examining NWEA’s MAP testing and RIT scores—how they work, why teachers don’t trust them, and how they shape acceleration decisions in Oak Park District 97.

In Part 1, I documented MAP testing’s troubled history: teacher boycotts, ethics violations, a federal study showing no impact, and a for-profit conversion that raises new questions.

But controversy doesn’t mean the underlying design is bad. Before we can fairly evaluate MAP’s role in acceleration decisions, we need to understand what it’s actually trying to do—and the genuinely innovative mathematics that make it work.

The Test That Ate America

Thu, 01 Jan 2026 09:00:00 -0600

This is Part 1 of “The Measurement Gap,” a series examining NWEA’s MAP testing and RIT scores—how they work, why teachers don’t trust them, and how they shape acceleration decisions in Oak Park District 97.

In January 2013, nearly every teacher at Seattle’s Garfield High School did something unprecedented: they unanimously voted to refuse to give a test.

Not the SAT. Not a state graduation exam. A test most parents had never heard of—the Measures of Academic Progress, or MAP, published by the Northwest Evaluation Association (NWEA).

The Ghost Rubric: When Requirements Reference Tests That Don't Exist

Fri, 14 Nov 2025 16:30:00 -0600

Oak Park Elementary School District 97 switched assessment platforms sometime between 2023 and 2025.

Out with MAP and AimsWeb+. In with STAR.

It’s now November 2025—midway through the school year.

The district still hasn’t published updated acceleration rubrics showing how STAR assessments will be scored.

And the rubrics that are published? They reference tests the district stopped giving two years ago.

This isn’t just a documentation problem. It reveals something deeper about how the district handles acceleration, communicates with families, and manages basic operational competence.