How are the categories of independent schools defined?
• Boarding schools: Schools enrolling 95 percent or more boarding students • Boarding-day schools: Schools enrolling between 50 and 94 percent boarding students, with the balance day • Day schools: Schools enrolling 95 percent or more day students • Day-boarding schools: Schools enrolling between 51 and 94 percent day students, with the balance boarding • Elementary schools: Schools with students in any grades PK-8 (including PK-6, K-8, 6-8), but none in grades 10-12 • Elementary-secondary schools: Schools with students in any grades PK-6 and any grades 10-12 (including K-12, 6-12, 1-10) • Secondary schools: Schools with students in any grades 10-12 (including 7-12, 9-12), but none in grades PK-6
