In addition, one self-selected parent independently completed a 30-minute paper-and-pencil survey at baseline and one-year following; parents received a $30 grocery store gift card for completing each survey. Parent report was obtained by 92% (938/1023) of the sample (86% were the biological mother). We limited the current study sample to those students who had parent report data. We further excluded seven students who reported a full drink prior to the age of divorce/separation, ensuring temporal precedence between drinking and divorce/separation for all participants, resulting in a final sample size of 931. Compared with students whose parents did not participate, students with participating parents were more likely to be non-Hispanic White (p = .04); there was no difference by age or sex. Parents of participants who reported ever consuming a full drink at baseline were less likely to complete the parent report (92.5% vs 82.3%, p=.002); however, there were no differences when taking into account drinking reports over the entire study (as was done in analyses). There were no differences as a function of youth-reported perceived stress.
