Using 3 waves of the TIMSS data, this study investigates the relationship between 8th-graders' mathematics and science achievement and their self-perceptions on these 2 subjects. For within-country data, there is generally a positive relationship between students' achievement and the following 3 measures of their self-perception: how much they…

Gender differences in scholastic achievement as a function of measurement method were examined by comparing performance of 739 15-year-old boys and 758 15-year-old girls in Irish high schools on multiple-choice and free-response tests of mathematics, Irish, and English achievement. Method-based gender differences are discussed. (SLD)