Produced December 13, 2007; based on 2007 data

This list has been updated since Dec. 13, 2007. The rankings of some schools have changed based on new data given to The Post by schools and school districts.

The Washington Post Challenge Index measures a public high school's effort to challenge its students. The formula is simple: Divide the number of Advanced Placement, International Baccalaureate or Cambridge tests a school gave by the number of seniors who graduated in June. Tests taken by all students, not just seniors, are counted. Magnet or charter schools with SAT combined verbal and math averages higher than 1300, or ACT average scores above 27, are not included, since they do not have enough average students who need a challenge.

The rating is not a measurement of the overall quality of the school but illuminates one factor that many educators consider important.

When compared with schools across the country, Washington-area schools are overall the most encouraging of college-level testing. In the list below, any school with a rating of 1.000 or above is in the top 5 percent of all U.S. high schools in encouraging students to take AP, IB or Cambridge tests. Also listed is the name of the school district and the percentage of a school’s students whose family incomes are low enough to qualify for federally subsidized lunches and who also apply for that program. The portion of subsidized-lunch applicants is a rough indicator of a school’s poverty level. High poverty schools are at a disadvantage in persuading students to take college-level courses, but some on this list have succeeded in doing so anyway.

The Equity and Excellence rate is the percentage of all seniors who have had at least one score on an AP, IB or Cambridge test that would qualify them for college credit. The average AP Equity and Excellence rate for all U.S. schools is about 15 percent.

*Includes IB tests.

**Includes Cambridge, community college or other types of college-level final exams.

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Rank School District Index Equity and Excellence % Subsidized Lunches %
186 Ballou D.C. 0.000 0.00 90.00
146 Booker T. Washington D.C. 0.862 0.00 86.00
13 Bell Multicultural D.C. 3.888 11.00 81.00
154 Cesar Chavez D.C. 0.761 0.00 81.00
159 Washington Math & Science Tech D.C. 0.663 7.00 80.00
184 Spingarn STAY D.C. 0.043 4.00 80.00
177 Spingarn D.C. 0.269 0.00 79.00
173 Integrated Design and Electronics D.C. 0.348 0.00 75.00
69 SEED Public Charter School D.C. 1.917 20.00 73.00
125 Thurgood Marshall D.C. 1.179 4.70 70.00
183 Anacostia D.C. 0.123 0.00 68.00
166 M.M. Washington D.C. 0.516 0.00 67.00
110 Friendship Collegiate** D.C. 1.382 n/a 67.00
124 Cardozo D.C. 1.203 2.40 66.00
180 Eastern D.C. 0.154 2.00 63.00
167 H.D. Woodson D.C. 0.510 2.00 62.00
131 Coolidge D.C. 1.038 2.00 55.00
172 Dunbar D.C. 0.351 0.00 54.00
178 Roosevelt D.C. 0.258 2.50 54.00
111 McKinley Technology D.C. 1.380 4.00 53.00
55 Wakefield Arlington 2.157 38.40 52.00
47 Stuart* Fairfax 2.378 43.10 51.00
158 Northwestern Prince George's 0.699 19.00 51.00
171 Central* Prince George's 0.366 n/a 51.00
145 High Point Prince George's 0.872 11.20 51.00
174 Bladensburg Prince George's 0.290 6.00 50.00
85 T.C. Williams** Alexandria 1.590 22.50 50.00
77 Hyde D.C. 1.706 n/a 50.00
185 Forestville Prince George's 0.025 n/a 48.00
182 Fairmont Heights Prince George's 0.134 1.80 48.00
152 Parkdale* Prince George's 0.772 8.50 47.00
20 Woodrow Wilson D.C. 3.272 35.00 42.00
168 Potomac Prince George's 0.461 1.10 41.00
89 Wheaton Montgomery 1.557 27.30 41.00
104 Annandale* Fairfax 1.425 40.00 40.00
161 DuVal Prince George's 0.573 3.90 40.00
25 Banneker* D.C. 3.106 32.00 39.00
163 Suitland* Prince George's 0.556 1.70 39.00
94 Mount Vernon* Fairfax 1.511 34.90 38.00
80 Gar-Field* Prince William 1.694 25.30 38.00
51 Falls Church Fairfax 2.245 35.20 37.00
5 Washington-Lee* Arlington 4.179 43.80 36.00
162 Crossland Prince George's 0.567 1.90 35.00
142 Laurel* Prince George's 0.909 11.40 34.00
63 South Lakes* Fairfax 1.991 41.50 33.00
122 Ellington D.C. 1.231 n/a 32.00
48 Einstein* Montgomery 2.358 41.30 32.00
86 Lee* Fairfax 1.582 37.60 32.00
78 Stonewall Jackson* Prince William 1.706 28.80 31.00
116 Kennedy Montgomery 1.332 26.30 31.00
33 John Handley Winchester 2.615 30.30 30.00
32 West Potomac Fairfax 2.700 39.30 30.00
65 Park View Loudoun 1.937 30.00 30.00
68 Potomac** Prince William 1.919 14.50 30.00
109 Oxon Hill Prince George's 1.394 10.90 30.00
127 Monroe Fredericksburg 1.091 24.90 30.00
132 Manassas Park** Manassas Park 0.993 7.70 30.00
156 Flowers Prince George's 0.717 n/a 30.00
97 Great Mills St. Mary's 1.482 18.10 30.00
84 Edison* Fairfax 1.635 42.40 29.00
29 Montgomery Blair Montgomery 2.795 47.60 29.00
44 Springbrook* Montgomery 2.466 40.20 28.00
88 Frederick Frederick 1.572 34.40 28.00
50 Annapolis* Anne Arundel 2.298 18.20 28.00
57 Watkins Mill* Montgomery 2.115 40.80 28.00
179 Friendly Prince George's 0.180 1.50 27.00
153 Meade Anne Arundel 0.770 16.60 26.00
181 Largo Prince George's 0.150 1.10 25.00
140 North County Anne Arundel 0.922 10.00 24.00
75 Gaithersburg Montgomery 1.757 32.20 24.00
157 Glen Burnie Anne Arundel 0.708 10.00 23.00
91 Woodbridge Prince William 1.546 23.90 23.00
150 Lackey Charles 0.815 11.10 23.00
137 Oakland Mills Howard 0.951 23.00 22.00
176 Surrattsville Prince George's 0.273 1.10 22.00
87 Hayfield Fairfax 1.577 27.20 21.00
95 Seneca Valley** Montgomery 1.506 25.70 21.00
160 Culpeper County Culpeper 0.588 9.60 20.00
42 Hylton Prince William 2.493 23.50 20.00
105 Stone Charles 1.419 13.70 20.00
135 Spotsylvania Spotsylvania 0.959 17.00 20.00
62 Eleanor Roosevelt Prince George's 1.992 30.00 20.00
90 Gov. Thomas Johnson Frederick 1.556 28.80 19.00
147 Long Reach Howard 0.845 18.90 19.00
121 Wilde Lake Howard 1.241 29.50 19.00
54 Paint Branch Montgomery 2.162 36.10 19.00
21 Herndon Fairfax 3.265 53.70 18.00
168 Warren County Warren 0.423 5.00 18.00
66 Magruder Montgomery 1.933 39.50 18.00
170 Frederick Douglass Prince George's 0.387 4.50 18.00
52 McDonough Charles 2.216 19.00 18.00
106 Chancellor Spotsylvania 1.412 n/a 18.00
175 Key Carroll 0.283 11.20 18.00
46 Rockville Montgomery 2.410 43.90 18.00
123 Hammond Howard 0.921 20.90 17.00
1 H-B Woodlawn Arlington 5.636 93.60 17.00
165 Gwynn Park Prince George's 0.521 2.20 17.00
133 Winters Mill Carroll 0.975 27.30 17.00
58 Heritage Loudoun 2.108 33.60 17.00
141 Hammond Howard 0.921 20.90 17.00
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*Includes IB tests.

**Includes Cambridge, community college or other types of college-level final exams.

Thomas Jefferson High School for Science and Technology in Fairfax County, with a rating of 7.486 and an Equity and Excellence rate of 100 percent, was not ranked because it is a magnet school with a selective admissions policy and an average SAT reading and math score, 1456, higher than the highest average for any regular enrollment school in the country. The index is designed to show which schools are challenging average students and does not work well with schools like Jefferson that have few or no average students.

Briar Woods and Freedom in Loudoun County, Battlefield and Freedom in Prince William County, Skyline in Warren County, Clarksburg and Northwood in Montgomery County, Dr. Henry A. Wise Jr. in Prince George’s County, Marriotts Ridge in Howard County and North Point in Charles County were not included because they are new schools and did not have full senior classes graduating this year.

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