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The goal of this study is (i) to examine trajectories in PA and ST from level 7-9 among pupils in Berlin, and (ii) to research the connection of those trajectories with specific facets and college type. For the present analyses, changes in students' PA and ST across three time things from seventh to 9th class had been assessed via self-report questionnaires. Negative and positive trajectories were defined for both PA (good growing or regularly high, bad decreasing or consistentl