By focusing on the domains of math and German, the present study with 200 elementary school children investigated the specific relationships of self-reported grades with academic self-concepts and self-perceptions of effort within the competence-affective separation of academic self-concepts. In addition, possible mediator effects of academic…

The main objective of this study was to investigate 9-10-year-old children's comprehension processes during listening to and free recall of a story. A cross-linguistic design comprised texts in L1 German and recall in L2 English and vice versa. Corresponding mono-linguistic control conditions in either L1 or L2 allowed to examine the extent to…

The present paper explores and compares the receptive vocabulary sizes of two groups of learners of different native languages. One of the most widely used vocabulary size tests is the Vocabulary Levels Test designed by Nation. Some reservations have been raised in relation to the adequacy of the Vocabulary Levels Test to estimate the vocabulary…

Experimentation skills are a central component of scientific thinking, and many studies have investigated whether and when primary-school children develop adequate experimentation strategies. However, the answers to these questions vary substantially depending on the type of task that is used: while discovery tasks, which require children to…

System thinking is usually investigated by using questionnaires, video analysis, or interviews. Recently, concept-mapping (CM) was suggested as an adequate instrument for analysing students' system thinking. However, there are different ways with which to use this method. Therefore, the purpose of this study was to examine whether particular…

TIMSS (Trends in International Mathematics and Science Study) is an international assessment of mathematics and science at the fourth and eighth grades that has been conducted every four years since 1995, with the most recent assessment in 2011. PIRLS (Progress in International Reading Literacy Study) is an international assessment of reading…