The aim of this study is to examine the effect of self-confidence on mathematics achievement. In this meta-analysis, the effect of self-confidence on mathematics achievement was analysed using the Trends in International Mathematics and Science Study (TIMSS). In the first stage of the study, the average effect size of self-confidence on…

The internal/external frame of reference (I/E) model and dimensional comparison theory posit paradoxical relations between achievement (ACH) and self-concept (SC) in mathematics (M) and verbal (V) domains; ACH in each domain positively affects SC in the matching domain (e.g., MACH to MSC) but negatively in the nonmatching domain (e.g., MACH to…

Five interrelated papers that explore the theme of validity within the context of cross-national assessments are grouped in this collection. These papers were presented at a symposium at the annual meeting of the American Educational Research Association. These papers draw on data from the Third International Mathematics and Science Study (TIMSS).…

International comparisons in educational research can be difficult to accomplish because the findings of individual countries may not be comparable due to study design or inherent country features that cannot be manipulated. Quantitative meta-analysis techniques have great potential in improving international comparisons. In this paper,…