Anonymous wrote:They scored higher than 99%? What is that? 100%?
A MAP percentile simply shows how a student performs compared to the US public-school population in the same grade and season. It doesn’t reflect what students should know, nor how they’d compare in more selective or advanced academic settings.
For example, a 99th percentile score means the RIT is higher than 99% of students in that national sample, but that sample includes many under-resourced districts across the country. In a high-performing system like FCPS, a large share of students naturally cluster at the top, partly due to stronger instruction, enrichment opportunities, and family support.
So while a 99th percentile score is absolutely an excellent result, it can sometimes create a false sense of exceptionalism if interpreted as “top 1% nationwide” in an absolute sense. These norms exclude most private and international schools, where expectations and curricula are often more accelerated, and their inclusion would likely shift national averages downward.
I mention this because both my children routinely score in the 99th percentile, yet it’s clear there’s still plenty for them to learn compared with top private-school or international peers. The MAP is a useful growth tool, but it measures progress within a broad U.S. context that’s, frankly, academically uneven.