Increased enrollment of economically disadvantaged students seems to have had only a minor impact on academic performance.
by John Butcher
Responding to discussions (here,ย ย here,ย here, andย here) of a new admissions policy and a decline in theย US Newsย ranking of TJ (aka Fairfax Countyโs Thomas Jefferson School for Science and Technology), Iย postedย an analysis of the end-of-year test (โSOLโ) data through 2025. Since then, Iโve had a chance to try to think more clearly (says he), with the following results.
But first: VDOE reports pass rate averages for โeconomically disadvantagedโ students (โEDโ here)(mostly those who qualify for free/reduced price meals, i.e., this is the bureaucratic euphemism for โpoorerโ), their more affluent peers (โNot EDโ), and all students. ED students generally perform less well than the Not ED, see, e.g., this. Most of the VDOE reports and, it appears, the new Accreditation system (and, also, the US News rankings, see below) look at the all students averages. That serves to unfairly penalize the schools and divisions with large ED populations (and to benefit those, such as TJ, with a small ED group). A fair system would look at both groups and probably would emphasize the performance of the group that needs more attention, the ED. This post looks at the recent ED and Not ED data for TJ, in addition to the all students results.
VDOE scores SOL tests on a 600 point scale. Passing is 400. As well, there are two โpassโ classifications. Scores above 500 are counted as Pass/Advanced; those from 400 to 500, Pass/Proficient. The sum of those two rates in the overall pass rate.
The 2021 testing was voluntary so that yearโs data surely are not reliable measures. Iโve omitted them here.
To start, a helpful VDOE database gives us the โFall Membership.โ Here is the dataset for TJ:














