Respondent retention by Wave 10 (five years after study commencement) was 62.7% of the Wave 1 sample, and 56% of those targeted for re-recruitment (26.8% of the original sample) completed surveys for Wave 11. Our factor models used the robust weighted least squares means and variance adjusted estimator (WLSMV) to account for missing data, and most of those who provided DNA and were included in the enrichment analyses also completed W11 survey data (92.9%). Nonetheless, we tested for sample differences between those with Wave 11 (W11) data available versus those without W11 data. There was a higher proportion of women with (64.9%) than without W11 data (58.0%), χ2(1) = 8.63, p < 0.01. Further, those who provided data at W11 had significantly higher factor scores in terms of persistent externalizing, F(1,2244) = 5.0, p < 0.05, d = 0.11, alcohol involvement, F(1,2244) = 8.93, p < 0.01, d = 0.14, and marijuana use, F(1,2244) = 9.42, p <0.01, d = 0.14. All other factor scores means were not different between those missing versus those providing data at Wave 11 (ps > 0.05).
