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'…

The historical development and recent applications are described of the picture sequencing format (PSF), a testing device which requires the subject to designate a complete and correct order for a set of related pictures. The earliest use was by Decroly in 1914 and perhaps the best known use is in the Wechsler intelligence tests. Special…

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)

The Preschool Embedded Figures Test (PEFT), based partly on the Children's Embedded Figures Test, is a measure of field independence, or analytic functioning. It is intended to investigate the development of psychological differentiation in children as young as age three. The PEFT contains 27 black and white drawings (3 practice drawings and 24…

Adolescents, ages 11-12 and 13-14, were tested for maturity of judgment about stability-change situations and about time perspective. (CP)