Definitions

Support for ADD/ADHD Students: To learn more about ADD/ADHD and different types of learning disabilities, please visit http://www.ldonline.org.
Percent Students of Color: Percentage of students that are African American, Latino or Hispanic American, Asian American, Native American, Middle Eastern American, or Multiracial. International students are excluded. Does not include foreign nationals who hold citizenship with countries other than the US, unless they are naturalized or permanent residents.
Percent International Students: Percentage of students from abroad who are not US citizens/permanent residents. Does not include expatriates or children of US citizens living abroad.
Average SAT score: The mean SAT of all students in last year's graduating class. When a range is given, this represents the middle 25th-75th percentile of SAT scores for last year's graduating class.
Post-Graduate(PG) Year: An additional year of secondary school spent in a college-prep boarding school (after high-school and before college).
Number of AP/Advanced Courses Offered: Number of Advanced Placement, or similarly advanced topic, courses offered during the school year. Schools may prefer to offer their own high level classes in place of the AP curriculum (i.e., schools may find that some subjects are better taught with their own curriculum. Read more about why some prep schools choose not to offer AP classes). These advanced courses are counted the same as an AP designated course.

Both the International Baccalaureate (IB) and Advanced Placement (AP) programs give high school students an opportunity to pursue college-level studies while still in high school. Depending on the college they attend, these courses can lead to advanced placement (skipping entry-level courses) or sometimes even receiving college credit for the coursework completed under these programs. The AP courses are accepted at virtually all U.S. colleges and universities, while the IB program has more limited acceptance within the U.S.
Number of IB Courses Offered: Number of International Baccalaureate courses offered during the school year. Does not include subjects where students may take the IB exam although no IB course is offered.
% Faculty with Advanced Degree: Percentage of faculty with a post-baccalaureate degree (e.g., Masters Degree or PhD.). Administrative faculty (as designated "faculty" by the head) can be included in this figure - staff are not included.
ESL Courses Offered: ESL (English as a Second Language) classes offered in boarding schools help international students learn English more quickly. These classes are generally very small. ESL courses are designed to improve an international student's speaking, reading and writing ability.