Students were categorized as low-(n=634), medium-(n=666), and high-neuroticism (n=676) based on the EPQ-R-N.3 Of these students, 1,269 were invited into a longitudinal study. We oversampled high-neuroticism participants. Of those students invited into the study, 668 agreed to participate. Of these, 627 completed their baseline assessment, which included the Structured Clinical Interview for DSM-IV, non-patient edition (SCID-I/NP; First, Spitzer, Gibbon, & Williams, 2002) and several questionnaires. Six cases were excluded from the present study because of missing data, or because of the possible presence of psychosis. The sample for the present study consisted of 114 low-neuroticism participants (18%), 144 medium-neuroticism participants (23%), and 363 high-neuroticism participants (59%). Participants received $40 for completing the interview and questionnaires. The sample was 69% female, 48% Caucasian, 15% Latino, 13% multi-ethnic, 13% African American, 5% “other”, 4% Asian, and 1% Pacific Islander. At the time of their first interview, the sample ranged from 15 to 18 years old (M=16.9, SD=0.4).
