M.Ed. (Educational Psychology), class teacher, Ph.D. Student. Areas of interest: socio-digital participation, creative learning, technology-mediated learning, knowledge practices, motivation & emotion, well-being, person-oriented approaches Lauri Hietajärvi is a doctoral student at the Faculty of Educational Sciences, University of Helsinki, Finland, and currently working mostly with Mind the Gap -project data. At the moment he is busy with exploring the various ways young people engage in socio-digital participation also outside of educational contexts, and further how these are interconnected with adolescents other spheres of life, such as academic and emotional functioning. Methodologically he is interested in combining various approaches from content-rich qualitative methods to longitudinal and person-oriented statistical methods.