2014 NWEA District-Level Data Release

August 2014

August 2014

Summary

NWEA results show that more than half of CPS students in grades 2-8 are at or above the national average attainment level in reading for their grade

Math scores improved for students in grades 2-8, but still lag slightly behind the national average

Students in welcoming schools had higher performance in reading than the year before, but not in math

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Attainment vs. Growth

Attainment: How did students do at one point in time. The reference point (national average attainment) is the same for all students in each grade level.

Growth: How did students improve from one year to the next? The reference point (national average growth) is different for each student based on their pretest score.

Growth scores are cohort-based, meaning students are measured against their individual performance in the previous year.

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Definitions

Student-level measures

Average RIT score – An average the Spring 2014 RIT scores from each student. RIT scores are NWEA’s scale score values.

Percentage of students at or above national average attainment – the percentage of students whose 2014 RIT scores are equal to or greater than the national average RIT score for their grade-level.

Percentage of students meeting or exceeding national average growth – the percentage of students whose growth meets or exceeds the average national growth for students from the same grade-level with the same pretest RIT scores.

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Inclusions/Exclusions

Included

Students in Grades 2-8 that took the NWEA MAP• For attainment measures, students that took the Spring SY2014 assessment• For growth measures, students that took both the Spring SY2014 assessment and either the Spring

SY2013 or Fall SY2014 assessment as a pretest.

All school types (charter, magnet, selective enrollment, charter)

Excluded

Students whose scores were invalidated by NWEA or CPS

Students taking the wrong assessment type or grade level

English Learners with an ACCESS Literacy score less than 3.5 at the time of the test.

Students expected to take the Illinois Alternative Assessment (IAA)

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NWEA Performance and Growth Summary

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Welcoming Schools

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Reading Attainment by Grade - % At/Above

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Reading Attainment by Grade – Average RIT

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*RIT = scale score

Math Attainment by Grade - % At/Above

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Math Attainment by Grade – Average RIT

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*RIT = scale score

2014 Reading Growth by Grade Level

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2014 Math Growth by Grade Level

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