Students' perceptions can influence their performance in writing. In the Portuguese context, the number of studies on this subject is still small and has not provided a clear overview of typical perceptions, for example, of students by year of schooling. Even more significant is the gap in international and national research on the relationships…

Mathematics teachers' beliefs are central to mathematics teaching and student learning. Because different aspects of motivation and affect--particularly enjoyment--primarily develop within the classroom context, examining how different teachers' beliefs may affect student outcomes in mathematics is imperative. The current study examines teachers'…

One of the main objectives of international large-scale assessments is to make comparisons between different countries, education policies, education systems, or subgroups. One of the main criteria for making comparisons between different groups is to ensure measurement invariance. The purpose of this study was to test the measurement invariance…