A study involving 477 female and 501 male fifth through eighth graders was conducted to investigate the differences in spatial visualization abilities and effects of instruction on spatial visualization skills of students by grade and sex. Instruction in visualization proved effective across grade and sex; retention of effects persisted after one…

The meta analysis reported in this paper considers the implications of combined correlational evidence for the nature of the relationships of mathematical and spatial skills, and for the possibility that spatial skill underlies gender differences in favor of males on mathematical tasks. In all, 136 studies reported in 116 articles and…