The relationship between mental rotation ability and gender differences in Scholastic Aptitude Test-Math (SAT-M) across diverse samples was investigated. Talented preadolescents, college students, and high-and low-ability college-bound youths, totaling 760, were administered the Vandenberg Mental Rotation Test. Gender comparisons showed male outperforming female students in both mental rotation and SAT-M for all 3 high-ability groups but not for the low-ability group. For all female samples, mental rotation predicted math aptitude even when SAT-Verbal was entered first into the regression. For male samples, the relationship varied as a function of sample. When mental rotation ability was statistically adjusted for, the significant gender difference in SAT-M was eliminated for the college sample and the high-ability college-bound students. This suggests that spatial ability may be responsible in part for mediating gender differences in math aptitude among these groups.The interpretation of cognitive gender differences is often contentious within the scientific as well as lay communities. One area of vigorous debate involves the finding of a male advantage in certain mathematical domains (Benbow, 1988;Rosser, 1989). This gender difference has been demonstrated cross-culturally, with the largest male advantage found in geometry and word problems. Moreover, gender differences in math tend to be largest in countries with the highest achieving students and in countries with the largest gender gap in experience and training (
This study was designed to investigate whether spatial skill, math anxiety, and math self-confidence functioned as mediators of a significant gender difference in the Mathematics Scholastic Aptitude Test (SAT-M) among the top third of a college-bound sample. Using path analytic techniques, the decomposition of the significant gender-SAT-M correlation into direct and indirect effects indicated that there were no direct effects of gender on SAT-M. Mental rotation and math self-confidence showed indirect effects, mediating the gender-SAT-M relationship; math anxiety did not. Of these indirect effects, 36% was mediated by math self-confidence; 64% by mental rotation. For both these variables, most of the mediational effects of the gender-SAT-M relationship did not occur by way of the causal pathway leading through geometry grades. Thus, the mediational effects cannot simply be attributed to the presence of geometry items on the SAT-M or to math self-confidence acquired during prior geometry coursework.
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