Results of these experiments indicate that the ability to deal with positive and negative instances is not only contingent upon developmental level, but also upon the dimensional characteristics of the stimuli. (Author)

Data seem to indicate that for children disadvantaged with respect to social class and ethnic background there is a functional interaction between art and language which allows such children to give verbal expression to their conceptual development. (Authors)

The author characterizes three basic lessons used to develop the concepts basic to rhetoric. (MF)

Article reveals that positive instance errors arose more often from memory deficits and from choice of irrelevant dimensions. Negative instance errors arose when interpreting information about present stimuli and the relevant dimension. (Author)

Study attempted to specify two complementary aspects of children's inferential size judgments within the context of Piaget's theory. (Authors)

Lack of spontaneous" development in the control group children is a matter of practical educational concern because it indicates the extent to which ESN children depend on explicit teaching for their mental advancement. (Author/SP)

Decisions in education concerning the development of children's intellectual capacities, respecting their freedom of choice, and initiating them into democratic values will depend in large measure on the view we hold of the nature of man. (Author)

Three experiments are reported that were designed to test the effectiveness of two training procedures, one perceptual, the other verbal, on upgrading the conceptual behavior of preschool children. (Authors/MB)

Reviews simple uses of computers in helping students understand basic processes in theoretical and microscopic chemistry. Presents example of a computer program which evaluates the radical part of any hydrogenlike wavefunction. (PR)

Forty-nine Ss learned a unidimensional concept with a six-dimensional stimulus set. Instructions specified the 12 possible unidimensional concepts, and the response on each trial was to give confidence ratings to each of the 12 corresponding hypotheses. (Author)