The New York Times recently ran the results of some pretty fancy number-crunching for all sufficiently-large public school districts in the United States. They graphed family income against ‘years ahead or behind’ in school and also showed the discrepancies in each of those school districts among hispanics, whites, and blacks.
If you haven’t played with the graphs, I urge you to do so. I did a little bit, looking for Washington, DC, my home town, where I and my children attended and where I taught for 30 years. I already knew that DC has one of the largest black-white gaps anywhere in the nation – a gap that 9 years of Edu-Reform under Fenty, Rhee, Gray, Henderson various charter companies have not narrowed at all.
Notice the extremely tight correlation between family income and scores on achievement tests, and where the District of Columbia is situated on the graph.
This next plot shows where DC’s whites, hispanics, and blacks are situated on the graph (as well as for thousands of other school districts):
Notice that white students in DC’s public schools are nearly the wealthiest and highest-achieving group anywhere in the nation, while DC’s black students are very far behind in both income and achievement. DC’s hispanic students, to my surprise, are considered to be a bit above the middle of the income levels, but still rather far behind academically. (I actually rather doubt the data on those DC hispanic income levels, based on my own personal experiences with Hispanic families here in DC…)