|District||Reported estimate||Full population estimates (FPE)||Difference (reported
|District of Columbia1||2.9||5.4||*||-2.6|
|New York City||3.2||2.8||0.3|
|# Rounds to zero.|
|* Statistically significant change.|
|1 The significance of the trend results from the officially reported sample for this jurisdiction would be different under the scenario.|
|NOTE: Differences are calculated using unrounded numbers.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2007 and 2009 Mathematics Assessments.
Read more about the potential effects of exclusion rates on assessment results.