The sample includes 340 participants (59% female; 98% White, 0.9% Black, 0.6% Hispanic, 0.3% Native American and 0.3% Other) who were assessed four times between mean ages 17 and 33. These participants are a subsample from the Lives Across Time: A Longitudinal Study of Adolescent and Adult Development (LAT; Windle and Wiesner, 2004). The larger study recruited 1,210 high school students (participation rate 76%) from suburban public schools in western New York. The youth were assessed 3-4 times during adolescence (waves 1-4), 6 months apart (retention over 90% at each wave). Participants were followed three more times in adulthood (waves 5-7; mean ages 23.8, 28.9, and 33.5; retention rates 70%, 66%, and 68%). Across the course of the LAT, 46.8% of the young adults participated at all 7 waves, 20.4% at 6 waves, 17.8% at 5 waves, 13% at 4 waves, and less than 2% at less than 4 waves; hence, 85% participated at five or more waves of measurement.
