University of Oregon

A New NCAASE Feature...

NCAASE has a new series of information sheets entitled "Did You Know?" or DYK. Check out our first in the series: DYK #1: Reading comprehension growth...

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The Second in Our Series...

Look at our next "Did You Know?": DYK #2: Mathematics achievement gaps...

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The Third in Our On-Going Series...

View the third "Did You Know?": DYK #3: Similar Mathematics achievement growth...

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"Did You Know" Item 4...

Read our fourth in the "Did You Know?" series: DYK #4: Academic achievement gaps...

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"Did You Know" Item 5...

Exam our fifth in the "Did You Know?" series: DYK #5: School performance and accountability models...

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"Did You Know" Item 6...

Investigate our sixth in the "Did You Know?" series: DYK #6: Accountability models and school performance...

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National Center on Assessment and Accountability for Special Education

The purpose of the NCAASE (The Center) is to develop and test various approaches for measuring the achievement growth of students with and without disabilities.

The Center’s focused program of research on reading and mathematics achievement growth is based on existing sets of longitudinal achievement data for students with and without disabilities from North Carolina, Arizona, Oregon, and Pennsylvania.

To help examine the accountability purposes for which states are using their assessment data, NCAASE partners with measurement and statistics experts, assessment and special education leaders in academia and in state departments of education, lead psychometricians, and a National Advisory Panel.

New and Upcoming at NCAASE


NCAASE has developed a series of research summaries entitled "Did You Know?" These one-page documents are intended to provide brief reader-friendly summaries of recent work by Center researchers.

We've just added our sixth DYK, Accountability models vary in their decictions of school performances as a function of the student composition of the school. We will be periodically releasing additional DYKs over the next few months. Please check back soon as we regulary add to our DYK collection.

Did You Know?