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Winnetka D36: ERB Data Analysis 2012-2014
- 1. Winnetka D36: ERB Data Analysis 2012 - 2014 February 2015
- 2. ERB About the ERB • Provides the CPT-4 test for assessment, which is more rigorous than the ISAT • Administered by New Trier to all incoming 8th graders in the fall of 8th grade year • Used for placement into leveled classes at NT About the Data • Educational research professionals and D36 like to have three years of data which makes the trend analysis more credible • The three feeder districts to New Trier that have less than 100 students per grade, Avoca, Kenilworth and Sunset Ridge, are likely to have more variability than the larger districts of Wilmette, Glencoe and Winnetka. • The ERB provides data on how students rank compared to the National, Suburban and Independent Norm. D36 typically analyzes performance relative to the Independent School Norm because those schools are most like Winnetka in demographic and performance profile.
- 3. Executive Summary: 3-year ERB data trend shows Winnetka students are not performing as well as students from other New Trier feeder districts. • The ERB is used for placement into academic levels at New Trier. • In all test areas, Winnetka had a lower percentage of students scoring “above average” (in the seventh through ninth stanines) than the independent norm and/or most feeder districts. • At the high end of achievement, typically the other districts have at least double the percentage of students as Winnetka scoring in the top (ninth) stanine in mathematics and quantitative reasoning.
- 4. In the three-year trend, Winnetka lagged other New Trier feeder districts and the independent norm in the percentage of students who scored above average in verbal reasoning achievement. 17% 14% 17% 16% 12% 17% 16% 15% 21% 26% 20% 23% 22% 16% 11% 13% 11% 0% 5% 10% 15% 20% 25% 30% 2012 2013 2014 % Students Scoring Above Average (Stanines 7-9) compared to the Independent School Norm ERB Verbal Reasoning Avoca Glencoe Kenilworth Sunset Ridge Wilmette Winnetka Independent norm is 23% * Wilmette data not available for 2012
- 5. In 2013 and 2014, Winnetka lagged most feeder districts and the independent school norm in the percentage of students who scored above average in reading comprehension achievement. 24% 15% 33% 23% 19% 28% 19% 30% 31% 33% 31% 29%29% 24%24% 20% 17% 0% 5% 10% 15% 20% 25% 30% 35% 2012 2013 2014 % Students Scoring Above Average (Stanines 7-9) compared to the Independent Schools Norm ERB Reading Comprehension Avoca Glencoe Kenilworth Sunset Ridge Wilmette Winnetka Independent norm is 23% * Wilmette data not available for 2012
- 6. Winnetka generally lagged other feeder districts but was on par with the Independent School norm in the percentage of students who scored above average in quantitative achievement. 42% 22% 31% 20% 28% 35% 33% 27% 36% 27% 20% 25%26% 25% 22% 23% 23% 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 2012 2013 2014 % Students Scoring Above Average (Stanines 7-9) compared to the Independent Schools Norm ERB Quantitative Reasoning Avoca Glencoe Kenilworth Sunset Ridge Wilmette Winnetka Independent norm is 23% * Wilmette data not available for 2012
- 7. Of all the test areas, mathematics scores were somewhat better, but still not on par with the performance of better scores from many feeder districts. 42% 31% 33% 31% 30% 36% 32% 26% 42% 34% 32% 32% 27% 25% 28% 27% 30% 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 2012 2013 2014 % Students Scoring Above Average (stanines 7-9) compared to the Independent Schools Norm ERB Mathematics Avoca Glencoe Kenilworth Sunset Ridge Wilmette Winnetka Independent norm is 23% * Wilmette data not available for 2012
- 8. Over the three year trend, most districts struggle to meet the independent norm in verbal reasoning, with Winnetka having half the percentage of kids in 9th stanine as the independent norm. 0% 3% 4% 2% 1% 2%2% 2% 3% 5% 4% 3% 4% 3% 1% 2% 2% 0% 1% 2% 3% 4% 5% 6% 2012 2013 2014 % Students Scoring in the Top (Ninth) Stanine compared to the Independent Schools Norm ERB Verbal Reasoning Avoca Glencoe Kenilworth Sunset Ridge Wilmette Winnetka Independent norm is 4% * Wilmette data not available for 2012
- 9. In verbal reasoning performance at the top stanine, Winnetka slightly but consistently lagged the feeders and the independent norm. 3% 4% 6% 1% 3% 3% 2% 2% 5% 8% 4% 5% 4% 3% 2% 2% 3% 0% 1% 2% 3% 4% 5% 6% 7% 8% 9% 2012 2013 2014 % Students Scoring in the Top (Ninth) Stanine compared to the Independent Schools Norm ERB Reading Comprehension Avoca Glencoe Kenilworth Sunset Ridge Wilmette Winnetka Independent norm is 4% * Wilmette data not available for 2012
- 10. 9% 5% 6% 5% 6% 8% 5% 2% 3% 8% 4% 8%8% 5% 2% 3% 2% 0% 1% 2% 3% 4% 5% 6% 7% 8% 9% 10% 2012 2013 2014 % Students Scoring in the Top (Ninth) Stanine compared to the Independent Schools Norm ERB Quantitative Reasoning Avoca Glencoe Kenilworth Sunset Ridge Wilmette* Winnetka Independent norm is 4% * Wilmette data not available for 2012 In the three-year trend of achievement in the top stanine for quantitative reasoning, Winnetka D36 students lagged most other feeders and the norm.
- 11. 14% 5% 10% 8% 7% 10% 7% 0% 8%8% 2% 12% 8% 7% 3% 6% 5% 0% 2% 4% 6% 8% 10% 12% 14% 16% 2012 2013 2014 % Students Scoring in the Top (Ninth) Stanine compared to the Independent Schools Norm ERB Mathematics Avoca Glencoe Kenilworth Sunset Ridge Wilmette* Winnetka Independent norm is 4% * Wilmette data not available for 2012 In performance at the top stanine for mathematics, again Winnetka lagged other feeder districts.