LinkD'Augelli co-authored a 2001 study of 400 lesbian, gay or bisexual 60-year-old people whose average age of personal awareness of their sexuality was age 13. The average age of disclosure was age 23.
In 2005, he conducted an additional survey of 542 young people to find the average age of personal awareness of sexuality for males was between ages 9 and 10 and for females around age 11. The average age of disclosure was between ages 16 and 17.
D'Augelli said the predisposed notion that most adolescents are heterosexual is a homophobic belief.
