Student Self-Reported Positive Purpose Over Two Years in Urban Middle Schools.

We used Developmental Systems Theory as a framework for understanding the role of contextual factors in the development of purpose in urban adolescents. The sample included primarily low-socioeconomic students of color attending urban middle schools (n = 2,629; 10-16 years of age). Longitudinal data were collected at four time points across two years. We used hierarchical linear modeling to model change in purpose. On average, purpose declined over time. We also identified several predictors of intercept and slope. For example, Black youth had a higher average purpose intercept, as well as a steeper average decline than other racial/ethnic groups. Females demonstrated a higher average purpose intercept than males, but this effect disappeared when academic achievement was added to the model.