In 2014, the gap between white and black students narrowed in 28 states, and the gap between white and Hispanic students narrowed in 32 states. (washingtonpost.com)
To investigate this question, we compared the progress of white and black students who attended the same school. (educationnext.org)
In effect, this technique holds teacher quality constant by comparing the relative performance of white and black students under the same teacher. (educationnext.org)