The document examines disparities in reading test scores between school districts in Pennsylvania. It finds that districts with lower percentages of economically disadvantaged students, such as Upper St Clair SD and Hampton Township SD, have much lower percentages of students scoring below basic on reading assessments, around 2%, compared to districts with higher percentages of economically disadvantaged students, such as Duquesne City SD, which have around 50% of students scoring below basic. The document determines that the disparity is not due to differences in per-pupil spending, district size, or other factors, but is strongly correlated with the percentage of economically disadvantaged students in each district. It concludes that understanding the root causes of the problem is necessary to begin addressing it