Ansträngning i OECD:s PISA-test : En studie om hur ansträngning påverkar antalet överhoppade matematikuppgifter för elever i Sverige

Sammanfattning: The aim and focus of this study is to investigate how Swedish students’ effort affects the number of unanswered mathematical tasks for the PISA-tests in 2003 and 2012. The effort is measured partially by looking at students’ self-assessed effort invested in the test, but also by looking at how the count of unanswered tasks deviates in differ- ent parts of the test. Poisson regression is implemented as the primary method of investigation. The results from the regression indicates both that the students who reported a lower self-assessed effort tend to skip more tasks on average and also that students on average tend to skip more tasks in the end of the test. This indicates that the students’ effort is a crucial part to include in order to see how many tasks that are skipped in the test. It is also indicated that the effort is not constant during the whole test. The results also point out that the effect that effort has on unan- swered tasks is greater in 2003 compared to 2012. However, the count of unanswered tasks is on average higher for students in 2012.