Poverty vs Proficiency In DC Public and Charter Schools

You’ve all heard the slogan:

“A child’s course in life should be determined not by the zip code she’s born in.” Source

Reformers like Bush2, Barack Obama, Michelle Rhee, Joel Klein, Arne Duncan, Adrian Fenty, Bill Gates, the Bradleys and the Waltons, all said they were going to bust the educational effects of poverty in DC and other places around the country. Their chosen methods were gutting the teachers’ unions, establishing lots of charter schools, firing or forcing into retirement thousands of teachers, establishing a revolving door of inexperienced teachers who almost all crash and burn out after a few years, and transforming schooling into all testing and test prep, all the time, especially on-line, so as to collect lots of data.

Have they been successful at solving the zip-code-and-destiny problem?

If we look at the only publicly-available data that we have for Washington, DC, namely PARCC scores and percentages of students who are designated as ‘At Risk’, the answer is:

NO.

Look at these two graphs, which I’ve prepared by matching the percentages of students scoring ‘Proficient’ or ‘Advanced’ in Washington, DC, at every single DC public school and charter school, versus OSSE’s official list of the percentages and numbers of students officially designated as being ‘At Risk’.

Unfortunately, the correlation is extremely strong, and negative. In other words, the fewer the kids who are officially ‘At Risk’ at any given school, the higher the percentage of kids scoring ‘Proficient’ or ‘Advanced’ on the PARCC – the Big Standardized test given in April of 2017. And obversely the greater the percentage of students at risk at any school, the lower the percentage of students ‘passing’ the PARCC.

The effect is particularly strong in the English and Reading part of the test.

(Note: I didn’t make up the ‘At Risk’ category. It’s relatively new, but combines statistics regarding homelessness, receiving food, living in poverty, divorces, family members being incarcerated, and so on.)

Here is the graph I made for the English Language Arts test. That R-squared correlation, 0.7016, is one of the strongest correlations you will find anywhere in the social sciences.

2017 ELA Parcc, proficient vs at risk, public and charter

Now here is the graph for the Math section of the PARCC:

2017 math PARCC proficiency vs at risk, public and charter

This is certainly not an indication that education ‘reform’ in DC has been a success. After more than a decade.

Next time I’ll break this down into charters and public schools. I think you will find that many of the charter schools have populations near the middle of these charts, while the regular DC public schools have populations near the extremes.


Many thanks to Ruth Wattenberg, Mary Levy and Matthew Frumin for showing me where these data files were kept – here and here. Any errors are my own.

 

 

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2 CommentsLeave a comment

  1. The % of Afr-Am 4th graders tested on the NAEP fell by 20 % points betw 2007 and 2015; the % of 8th gr Afr-Am students declined by 15 %pts.

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  2. Thanks for your hard work Mr. Brandenburg. I say to myself, “duh”, but it’s nice to have data to back up what I know to be painfully obvious to any teachers actually working in the schools, rather than the suits downtown.

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