The described interplay between interests and multiple contexts in daily life requires an “across-context” perspective . Such a perspective tries to expand the common unit of analysis, that is, a single context , and allows for a study of the adolescent’s interests in continuous interaction with different social contexts over time (i.e., idiosyncrasy). Such a holistic approach is in line with recent developments in the field of educational and learning sciences, where researchers have started to investigate how different social contexts simultaneously promote or constrain learning and development in daily life . This approach calls for new methodologies that allow for the investigation of everyday (inter)actions. Therefore, our study will use an experience sampling method (ESM), providing us with an archive of highly ecologically valid data .