One-third of the students at Success Cobble Hill are listed as either White or Asian, an unusually high percentage for an inner-city minority school. About 15% of New York City elementary school students are from families that are homeless, another hard to teach population missing at Success schools because they are unable to complete the application process. Success Cobble Hill shares a building at 284 Baltic Street in Brooklyn with three other schools, including Public School 368K, which is a special-education program working with the children that Success Academy does not want. The Success formula seems to be, if you eliminate the difficult to reach kids, and pull in more middle class kids, your average test scores magically go up.
Article source: http://www.huffingtonpost.com/entry/do-test-scores-measure-success_us_59a3e931e4b0d0ef9f1c1567?utm_hp_ref=new-york-city