“…Although there appears to be some evidence for a gender difference on tests of spatial skills (e.g., Halpem, 1986;Maccoby & Jacklin, 1974;McGee, 1979), the magnitude of the gender difference, the specificity of the difference with respect to type of spatial skills, and the ages when gender differences emerge have been questioned (e.g., Caplan, MacPherson, & Tobin, 1985;Hyde, 1981). For example, Hyde (1981) argued, on the basis of a meta-analysis of visual-spatial ability studies, that the magnitude of the difference between males and females is very small.…”