At the highest level, this dissertation is a case study on how bias can become encoded into the tools used to measure a construct and into the very definition of the construct itself. In this case, the construct is spatial ability. This dissertation focuses on the validity and accuracy of spatial tests and illuminates gender bias that is…

This study investigated pedagogical implication of spatial visualization as correlate of students' achievement in physics. Ex post facto research of the co-relational type with 857 senior secondary school three (S. S. 3) participants comprising of male and female students from both public and private-schools from Kwara State, Nigeria. Four…

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…