Development and evaluation of a numerosity estimation test for elementary school students
Résumé
Numerosity Estimation is not only important for everyday activities but is also assumed to be important for the development of mathematical skills. To examine influencing factors on numerosity estimation, it is required to conduct numerosity estimation accuracy in different tasks. Since no standardized numerosity estimation test exists to date, the goal is to develop a standardized test that reliably and validly measures the accuracy of numerosity estimation of elementary school children. Therefore, we developed a digital numerosity estimation test including seven different types of tasks in three number ranges. 196 German third-grade students from thirteen classes participated in the numerosity estimation test. In this paper, we will describe the test development and the evaluation of testing construct validity and reliability as specific test theory-based quality criteria.
Origine | Fichiers produits par l'(les) auteur(s) |
---|