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 series of activities on spatial relationships was designed to help users acquire the skills of spatial visualization and orientation and to improve their effectiveness in applying those skills. The series contains an introduction to spatial orientation with several self-directed activities to help improve that skill. It also contains seven…

A systematic research program will study the cumulative effects of selected instructional variables on learning a spatial visualization task. The goal of the research is to identify instructional variables that will improve the performance of female students on the Aircraft Instrument Comprehension (AIC) test. The AIC program is intended to teach…