Being bisexual is a distinct orientation, not a temporary stage, says the study by Lisa Diamond, an associate professor of psychology and gender studies at the University of Utah. It is being published next week in the January issue of Developmental Psychology, a journal of the American Psychological Association.
Diamond conducted face-to-face interviews around New York state in 1995, when the women (who identified themselves as lesbian, bisexual or unlabeled, but not heterosexual) were ages 18-25. She then spoke with them by phone every two years.
"These findings are therefore more consistent with the model of bisexuality as a stable identity than a transitional stage," the study says.
Diamond suggests that most women "possess the capacity to experience sexual desires for both sexes, under the right circumstances."