Maps



This map displays Empirical Bayes estimates of the average achievement gaps in math and English language arts in nearly 10,000 U.S. public school districts. A gap of zero indicates that there is no achievement gap in that district. Negative gaps (shown in orange) indicate that female students score higher on average than male students in the district; positive achievement gaps (shown in blue) indicate that male students score higher on average than female students in the district. The gaps displayed are in standard deviation units; for reference, a third of a standard deviation gap is approximately a one grade level difference.
Gender Achievement Gaps in U.S. School Districts.


This map displays Empirical Bayes estimates of district level average achievement. These are centered around zero, so a score of zero means the district is at the average expected level of achievement within the United States. One-unit below zero means that students in the district are one grade level behind the average; one-unit above zero means that students in the district are one grade level above the average. A one-unit change is interpreted as a grade-equivalent change, such as the difference in achievement between grades 3 and 4.
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This map displays Empirical Bayes estimates of district level changes in average achievement across grades. An estimate of 1 means that students in the district are increasing by 1 grade equivalent unit per grade. Estimates below 1 mean that students in the district are increasing in achievement less than one grade level per year, and estimates greater than 1 indicate that students in the district are increasing in achievement greater than one grade level per year.
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