Drawing on data from a longitudinal cohort-sequential project, the present study examined developmental trajectories of adolescents' attitudes toward political engagement and their willingness to participate in politics from grade 7 to 11 while accounting for the influence of school track and gender. Moreover, stabilities on the dependent variables were assessed. The results revealed differential trajectories regarding adolescents' educational level. Increases were mainly shown for students attending the college-bound school track. Generally, both orientations toward political behaviors were shown to become more stable throughout the adolescent years. Together, the findings confirmed adolescence to be a crucial period in life concerning the emergence, consolidation, and development of political points of view. (Contains 4 tables and 2 figures.)