The current study used a multidimensional approach to examine developmental trajectories of three dimension of school engagement (school participation, sense of school belonging, and self-regulated learning) from grades 7 to 11 and their relationships to changes in adolescents' academic outcomes over time. The sample includes 1,148 African American and European American adolescents (52% females, 56% black, 34% white, and 10% others). As expected, the downward trajectories of change in school participation, sense of belonging to school, and self-regulated learning differed as did their predictive relationships with academic performance and educational aspiration, with school belonging declining most markedly, but being least predictive of changes in grade point average.