The construct of spatial ability is discussed and it is suggested that some widely used and cited tests that are called spatial ability tests may not be valid measures of that ability. Instead, their items may be solved using mental processes that are clearly analytical and not spatial in nature. Four studies involving the analysis of subjects'…

It has been suggested than an educational curriculum should include training in working with people as well as with ideas. Measuring and conceptualizing "social intelligence has been difficult, however. Although the idea of social intelligence has a long history, most tests which have been proposed to measure such ability correlate highly…

This paper describes a study in which a Picture Readability Index (PRI) was used to investigate initial and extended perceptions of photographs. Readability criteria for evaluating instructional text seems to have been in place for a long time, yet instructional visuals like photographs and illustrations have typically been subject to no such…

This summarizes a study designed to provide a basis for researchers who study measurable areas of human performance or attempt to conceptualize and develop a theory and structure of abilities. Specifically, this study was directed toward the identification of tests that can serve as markers for well established cognitive factors. (Author/CTM)