kitchen table math, the sequel: more on the US News rankings: top 1942 high schools

Friday, December 19, 2008

more on the US News rankings: top 1942 high schools

The new rankings aren't just about the top 200 high schools, according to Standard and Poor's. The entire list is a pick of the top 1942 schools out of 21,069 evaluated:

100 gold
504 silver
1321 bronze
17 honorable mention
1942 total

We analyzed 21,069 public high schools in 48 states using data from the 2006-2007 school year. This is the total number of public high schools in each state that had grade-12 enrollment and sufficient data to analyze primarily for the 2006-2007 school year. A three-step process determined the best high schools. The first two steps ensured that the schools serve all their students well, using state proficiency standards as the measuring benchmarks. For those schools that made it past the first two steps, a third step assessed the degree to which schools prepare students for college-level work.

The first step determined whether each school's students were performing better than statistically expected for the average student in the state. We started by looking at reading and math results for all students on each state's high school test. We then factored in the percentage of economically disadvantaged students (who tend to score lower) enrolled at the school to find which schools were performing better than their statistical expectations.

For those schools that made it past this first step, the second step determined whether the school's least-advantaged students (black, Hispanic, and low income) were performing better than average for similar students in the state. We compared each school's math and reading proficiency rates for disadvantaged students with the statewide results for these disadvantaged student groups and then selected schools that were performing better than this state average.

Schools that made it through the first two steps became eligible to be judged nationally on the final step, college-readiness performance, using Advanced Placement and/or International Baccalaureate test data as the benchmarks for success. (AP is a College Board program that offers college-level courses at high schools across the country.) This third step measured which schools produced the best college-level achievement for the highest percentages of their students. This was done by computing a "college readiness index" based on the weighted average of the AP and/or IB participation rate (the number of 12th-grade students who took at least one AP and/or IB test before or during their senior year, divided by the number of 12th graders) along with how well the students did on those tests. The latter part, called quality-adjusted AP and/or IB participation, is the number of 12th-grade students who took and passed (received an AP score of 3 or higher or an IB score of 4 or higher) at least one of the tests before or during their senior year, divided by the number of 12th graders at that school. For the college readiness index, the quality-adjusted participation rate was weighted 75 percent in the calculation, and 25 percent of the weight was placed on the simple AP and/or IB participation rate. Only schools that had values greater than 20 in their college readiness index scored high enough to meet this criterion for gold and silver medal selection. The minimum of 20 was used because it represents what it would take to have a "critical mass" of students gaining access to college-level coursework.


Top 100
Methodology
NY schools (110 altogether)
Westchester County

Bloomington High School
US New Ranking (ktm post)

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