Oliveira, Teresa Cristina Clímaco Monteiro d'2013-10-122013-10-122004International Journal of Aviation Psychology, 14, 19-381050-8414http://hdl.handle.net/10400.12/2424Spatial ability is included in nearly every multiple aptitude battery. However, it has been defined and evaluated in such a variety of ways that it is difficult to be precise about the meaning of the concept. A first study addresses the spatial literature, considers several measures, and empirically explores the dimensionality of the spatial domain. Nine spatial ability tests and 1 computer- administered measure were administered to a total of 104 volunteers. Results from the exploratory factor analysis identified 3 main factors: visualization, spatial relations, and dynamic spatial ability. A second study was conducted to cross-validate this factor structure. A total of 141 participants were involved in this study. Participants were recruited from professional training domains in which spatial ability has been considered important for successful performance: air traffic control, piloting, civil engineering, and architecture. Cross-validation was obtained through a confirmatory factor analysis (CFA). In general, both empirical studies confirm the existence of dynamic spatial ability as a distinct dimension within the spatial domain.engjournal article