linear slopes, and rates of acceleration (Muthén & Muthén, 2000). Because the identification and explanation of within-group differences was not a primary focus of the present analyses, the variances for all like growth parameters were constrained to be equal across trajectory classes in order to aid in model convergence. Moreover, this analysis was carried out using the full subsample of European Americans in order to increase our power to detect relatively small, yet meaningful patterns of behavior.
