This dissertation studies two consecutive cohorts of kindergarten pupils in a large-scale experimental digital reading (and math) intervention," What Works for Whom ". It looks into the... Show moreThis dissertation studies two consecutive cohorts of kindergarten pupils in a large-scale experimental digital reading (and math) intervention," What Works for Whom ". It looks into the differential effects of digital interventions for children experiencing mild perinatal adversities. Additionally, it examines how to deal with missing data using a planned missing data approach, and studies mechanisms (both internal and external to the pupils) that may account for differential intervention effects. Show less