Participants were 129 girls between the ages of 9 and 14 years (M = 12.1, SD = 1.5 years). The racial/ethnic make-up of the sample was 71.3% Caucasian, 10.9% biracial, 10.1% Asian American, 4.7% Latina, and 3.1% African American. Approximately 49% (n=47) of participants who provided reports (n=97) had their first menses. Mothers and daughters provided written informed consent and assent, respectively; dyads were compensated $25 per hour. The study was approved by the university's Institutional Review Board.
