Table 1.

Demographic characteristics of re-surveyed high schools (n=50)

	Total
Female (%)	51.4
Male (%)	48.5
African American (%)	5.4
Hispanic/Latino(a) (%)	34.0
White, non-Hispanic/Latino(a) (%)	43.5
Eligibility of subsidised meals (%)	26.2
Mean of parental education (1=less than high school, 5=graduate degree)	3.1
Mean of academic performance index (standardised achievement test scores)	717
Mean of student enrolment	2358
Number of students (9th to 12th grade)	16 833

The number of students represents an aggregate of students over two survey cycles: 2003–2004+2005–2006.