In 2015-16 a new PIRLS study was carried out. For the first time, this involved the reading of electronic texts – something which is becoming increasingly common in schools, even for fourth-grade pupils.
Focus was also on reading in the third grade with a view to gaining an understanding of the rate at which reading skills develop from one year group to the next. As a result, PIRLS 2016 includes both third-graders and fourth-graders from the same schools.
The main study took place at around 200 selected schools in Denmark in March 2016.