Germany historically responded to student diversity by tracking students into different schools beginning with grade 5. In the last decades, sociopolitical changes, such as an increase in "German-as-a-second-language" speaking students (GSL), have increased diversity in all tracks and have forced schools to consider forms of…

It is generally accepted and well documented that mastery goal orientation positively affects students' learning behavior. However, less is known about this association in self-directed learning during adolescence, which additionally promotes student's positive emotions. This study tested whether positive emotions mediate the association between…