Introduction to the study of gender differences in cognition / John T. E. Richardson -- Gender differences in cognition : results from meta-analyses / Janet Shibley Hyde and Nita M. McKinley -- Do the sex-related cognitive differences exist, and why do people seek them out? / Paula J. Caplan and Jeremy B. Caplan -- The meanings of difference : cognition in social and cultural context / Mary Crawford and Roger Chaffin -- Conclusions from the study of gender differences in cognition / John T. E. Richardson.