Introduction: Studies have investigated the beginning of the decline in motivation during the transition of students to secondary school, with a low point in year 9. However, there are only a few studies that have researched the course of learning and achievement motivation separately for high-tracking school students, although--following the…

International surveys are increasingly being used to understand nonacademic outcomes like math and science motivation, and to inform education policy changes within countries. Such instruments assume that the measure works consistently across countries, ethnicities, and languages--that is, they assume measurement invariance. While studies have…