I never understand why the Dallas TAG school is included if they exclude magnets. It's come out as no. 1 for about three years in a row. The entire high school (which shares a campus with 3 or 4 other magnets) has an enrollment of about 168, out of a school district high school population of around 38,000. That means that this is the top 0.4% of the distict's high school population. I bet any of our high schools would appear to be stellar if you went by the test scores of the top 0.4% of the kids in the school!
Buried in the FAQ I found the explanation. The list excludes magnet/charters if their ACT/SAT scores are what the study calls "too high":
. Why don't I see on the NEWSWEEK list famous public high schools like Stuyvesant in New York City or Thomas Jefferson in Fairfax County, Va., or the Illinois Mathematics and Science Academy in Aurora, Ill., or Whitney High in Cerritos, Calif.?
We do not include any magnet or charter high school that draws such a high concentration of top students that its average SAT or ACT score significantly exceeds the highest average for any normal-enrollment school in the country. This year that meant such schools had to have an average SAT score below 1,975 or an average ACT score below 29 to be included on the list.
The schools you name are terrific places with some of the highest average test scores in the country, but it would be deceptive for us to put them on this list. The Challenge Index is designed to honor schools that have done the best job in persuading average students to take college-level courses and tests. It does not work with schools that have no, or almost no, average students. The idea is to create a list that measures how good schools are in challenging all students and not just how high their students' test scores are. The high-performing schools we have excluded from the list all have great teachers, but research indicates that high SAT and ACT averages are much more an indication of the affluence of the students' parents.
Using average SAT or ACT scores is a change from the previous system we used, which excluded schools that admitted more than half of their student based on grades and test scores. That system penalized some inner-city magnet schools that had high Challenge Index ratings but whose average SAT or ACT scores were below those of some normal-enrollment suburban schools, so we switched to a system that we consider fairer and clearer.
We do, however, acknowledge on our Public Elites list the schools that did not make the list because their average SAT or ACT scores were too high. This year there are 21 of them.