The first part of this paper briefly describes two studies concerned with cognitive processes in children. One study examined the ability of Kindergarten and First Grade children to apply a simple rule of logical inference in order to solve a two-object discrimination problem. Specifically, the rule was of the form "if A, then not B." A second…

Random polygons were used as stimuli in a two-choice multiple discrimination learning paradigm designed to test individual learning ability. A nonverbal test was developed in order to avoid the cultural and racial bias which, according to the author, is inherent in verbal tests. Information processing rate (IPR) was used as the measure of learning…