The relationship between perceptual structure and individual differences in cognitive ability was studied through a computerized inductive reasoning task performed by 100 college undergraduates at Cleveland State University (Ohio). Measures included two psychometric tests and a set of four computerized cognitive tasks. Two components of perceptual…

Learning differences or disabilities can be best understood and addressed within the holistic/constructivist theory of knowledge construction and the reciprocal evolution of cognitive structures. Learning differences manifest themselves in the spirals of mental structuring activity that guide relational thinking. Such a perspective focuses on…

In this study Dutch subjects with four different levels of expertise (24 second-year, 24 fourth-year, 24 sixth-year medical students, and 24 internists with at least 4 years of experience) studied, diagnosed, and explained four clinical cases. Diagnostic accuracy increased with the increasing level of expertise. The number of concepts used and the…