This meta-analysis was conducted to estimate the magnitude of gender difference in three-dimensional (3-D) mental rotation ability and to investigate how factors related to test administration conditions play a role in varying gender difference effect sizes and threatening validity. Individuals' 3-D mental rotation ability was measured by the…

After a brief review of the contributions of factor analysis and regional analysis to the elaboration of the structures of spatial abilities, a facet design and regional model for spatial abilities are presented. A cylindrical-wedge model is proposed to represent the correlational structure of spatial ability tests. (SLD)

This article reviews the development of measures that assess mobility and discusses the use of such measures in the study of factors influencing travel in natural travel environments. It traces the development of measures related to spatial orientation, provides a review of orientation research, and suggests areas for future research. (SM)