“What matters to you?”: A randomized controlled effectiveness trial, Using Systematic Idiographic Assessment as an intervention to Increase Adolescents’ perceived control of their mental health

Introduction Over the last decades, many Western countries have seen an increase in mental health difficulties in the adolescent population. Among Norwegian adolescents, internalizing symptoms are most prevalent, and 10%–38% of adolescents seek out primary health care services for mental health problems. This study examined whether an idiographic measure designed for adolescents called Assert, which uses variables individually selected by the...