Reasoning and working memory as predictors of school grades

The present paper contributes to individual difference research in the field of working memory (WM) and reasoning and their contribution to the prediction of real-life criteria. Therefore, a broad WM test battery, a well-established measure of reasoning, and school grades were applied. It is argued that abilities as assessed with the WM component coordination are relevant for good performances at school, especially for science courses. The verbal task of the WM component storage in the context of processing was assumed to be relevant for the prediction of performance in language courses. As expected, reasoning turned out to be the best predictor of school grades. However, it was also confirmed that variance shared by coordination and reasoning can explain school performance, especially as concerns science courses. The verbal storage in the context of processing task significantly accounted for variance in language courses above and beyond reasoning. Thus, the present study provided further insights into the differential validity of different WM components.     

Gender differences in mathematics and science: the role of the actiotope in determining individuals’ achievements and confidence in their own abilities

Despite changes, gender differences in math and science continue to exist in some countries. We examined whether the actiotopes of boys and girls at the high school level in math and science differed and the extent to which (a) their actiotope components, (b) the progressive development of their actiotopes (dynamic perspective), and (c) the co-adaptation of their actiotopes (systems perspective) function as predictors for girls’ and boys’ achievements and confidence in one’s own abilities in math and science. To answer these questions, we examined girls and boys (N?=?361) in Canada, the Czech Republic, and Germany with a questionnaire. The results suggest that girls are less effective at progressively developing their actiotopes in the fields of math and science and that modifications in their actiotopes were less well balanced by stabilizing forces. Independent of gender, the actiotope aspects considered here are suited to predicting achievements and confidence in one’s own abilities in math and science.