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 %
183 Anacostia D.C. 0.123 0.00 68.00
104 Annandale* Fairfax 1.425 40.00 40.00
50 Annapolis* Anne Arundel 2.298 18.20 28.00
119 Arundel Senior Anne Arundel 1.277 20.80 10.00
112 Atholton Howard 1.364 25.10 5.00
186 Ballou D.C. 0.000 0.00 90.00
25 Banneker* D.C. 3.106 32.00 39.00
13 Bell Multicultural D.C. 3.888 11.00 81.00
8 Bethesda Chevy Chase* Montgomery 4.056 66.80 9.00
174 Bladensburg Prince George's 0.290 6.00 50.00
49 Blake Montgomery 2.339 43.00 13.00
146 Booker T. Washington D.C. 0.862 0.00 86.00
138 Bowie Prince George's 0.947 9.90 16.00
114 Brentsville** Prince William 1.337 21.50 6.00
28 Broad Run Loudoun 2.933 40.00 9.00
30 Broadneck Anne Arundel 2.730 41.50 5.00
136 Brooke Point Stafford 0.951 15.70 11.00
100 Brunswick Frederick 1.454 28.60 14.00
129 Calvert Calvert 1.063 15.90 15.00
124 Cardozo D.C. 1.203 2.40 66.00
118 Catoctin Frederick 1.303 26.80 13.00
40 Centennial Howard 2.547 46.80 4.00
171 Central* Prince George's 0.366 n/a 51.00
18 Centreville Fairfax 3.566 45.30 11.00
144 Century Carroll 0.887 27.80 6.00
154 Cesar Chavez D.C. 0.761 0.00 81.00
106 Chancellor Spotsylvania 1.412 n/a 18.00
19 Chantilly Fairfax 3.346 47.60 11.00
123 Chesapeake Anne Arundel 1.226 23.70 7.00
134 Chopticon St. Mary's 0.970 15.00 10.00
15 Churchill Montgomery 3.658 72.70 3.00
3 Clarke County* Clarke 4.535 82.00 13.00
81 Colonial Forge Stafford 1.655 34.20 9.00
131 Coolidge D.C. 1.038 2.00 55.00
120 Courtland Spotsylvania 1.268 31.80 13.00
162 Crossland Prince George's 0.567 1.90 35.00
160 Culpeper County Culpeper 0.588 9.60 20.00
96 Damascus Montgomery 1.495 38.70 8.00
39 Dominion Loudoun 2.551 38.80 12.00
172 Dunbar D.C. 0.351 0.00 54.00
161 DuVal Prince George's 0.573 3.90 40.00
180 Eastern D.C. 0.154 2.00 63.00
84 Edison* Fairfax 1.635 42.40 29.00
48 Einstein* Montgomery 2.358 41.30 32.00
62 Eleanor Roosevelt Prince George's 1.992 30.00 20.00
122 Ellington D.C. 1.231 n/a 32.00
37 Fairfax Fairfax 2.587 42.70 16.00
182 Fairmont Heights Prince George's 0.134 1.80 48.00
51 Falls Church Fairfax 2.245 35.20 37.00
92 Fauquier Fauquier 1.520 23.10 10.00
156 Flowers Prince George's 0.717 n/a 30.00
115 Forest Park Prince William 1.333 21.70 16.00
185 Forestville Prince George's 0.025 n/a 48.00
88 Frederick Frederick 1.572 34.40 28.00
170 Frederick Douglass Prince George's 0.387 4.50 18.00
179 Friendly Prince George's 0.180 1.50 27.00
110 Friendship Collegiate** D.C. 1.382 n/a 67.00
75 Gaithersburg Montgomery 1.757 32.20 24.00
80 Gar-Field* Prince William 1.694 25.30 38.00
6 George Mason* Falls Church 4.176 65.00 7.00
157 Glen Burnie Anne Arundel 0.708 10.00 23.00
102 Glenelg Howard 1.435 28.50 2.00
90 Gov. Thomas Johnson Frederick 1.556 28.80 19.00
97 Great Mills St. Mary's 1.482 18.10 30.00
165 Gwynn Park Prince George's 0.521 2.20 17.00
1 H-B Woodlawn Arlington 5.636 93.60 17.00
167 H.D. Woodson D.C. 0.510 2.00 62.00
141 Hammond Howard 0.921 20.90 17.00
123 Hammond Howard 0.921 20.90 17.00
87 Hayfield Fairfax 1.577 27.20 21.00
58 Heritage Loudoun 2.108 33.60 17.00
21 Herndon Fairfax 3.265 53.70 18.00
145 High Point Prince George's 0.872 11.20 51.00
117 Howard Howard 1.327 18.50 7.00
70 Huntingtown Calvert 1.912 n/a 6.00
77 Hyde D.C. 1.706 n/a 50.00
42 Hylton Prince William 2.493 23.50 20.00
173 Integrated Design and Electronics D.C. 0.348 0.00 75.00
24 James Madison Fairfax 3.107 53.60 5.00
33 John Handley Winchester 2.615 30.30 30.00
116 Kennedy Montgomery 1.332 26.30 31.00
175 Key Carroll 0.283 11.20 18.00
74 La Plata Charles 1.771 20.20 11.00
150 Lackey Charles 0.815 11.10 23.00
14 Lake Braddock Fairfax 3.681 54.40 11.00
4 Langley Fairfax 4.280 67.40 1.00
181 Largo Prince George's 0.150 1.10 25.00
142 Laurel* Prince George's 0.909 11.40 34.00
86 Lee* Fairfax 1.582 37.60 32.00
72 Leonardtown St. Mary's 1.836 29.10 12.00
148 Liberty Fauquier 0.835 18.40 14.00
107 Liberty Carroll 1.409 32.60 3.00
71 Linganore Frederick 1.842 39.10 5.00
147 Long Reach Howard 0.845 18.90 19.00
36 Loudoun County Loudoun 2.596 40.50 10.00
26 Loudoun Valley Loudoun 3.032 49.70 4.00
166 M.M. Washington D.C. 0.516 0.00 67.00
66 Magruder Montgomery 1.933 39.50 18.00
132 Manassas Park** Manassas Park 0.993 7.70 30.00
35 Marshall* Fairfax 2.599 55.40 16.00
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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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