Studies the nature and development of perceptual estimation in a task requiring the coordination of spatial dimensions. (BD)

Examines fourth grade children's memory for information contained in target sentences presented 24 hours earlier. Examines the occurrence of interference by presenting multiple choice response options consisting of a correct word, a new word, and a word which occurred in a previous sentence. Attempts to extend the principles of frequency theory.…

Presents a reply to and an analysis of a study which examined the use of logograph research to determine children's cognitive integration ability. The study in question had been based on the present author's previous research. (BD)

This paper describes six experiments performed to investigate elementary school childrens' understanding of a proportionality concept, the concept of fullness. (CM)

Response contingent hand overcorrection was used to reduce the frequency of self-stimulatory behaviors in four retarded adults. (CM)

This study measured the feature selection and classification ability of 213 children between the ages of four and sixteen through an analysis of their sorting performance from a developmental point of view. (CM)

Two experiments explore the possibility of applying the theory of infor mation integration to study playgroup attractiveness. Subjects are six- and seven-year-old children. (CM)

A modification of Posner's letter-matching paradigm is employed to study the development of abstract visual and name codes for letters in second, fourth, and sixth grade students. (CM)

This study uses a search task to investigate the development of word superiority effects in visual perception. Subjects are kindergarten, second and fourth grade children, and college students. (CM)

Five-year-old children were trained on the length relationships between adjacent members of a five-term series of sticks, and subsequently tested on their abilities (1) to judge the length relationships between nonadjacent pairs of the series, and (2) to incorporate an unseen novel stick into the series through inference. (CM)

Presents a study of communication development in 5-year-old children. Subjects described multidimensional triangles for the listener. Tasks involved simple or complex attribute variation. Results indicated success only on simple tasks. (CM)

The purpose of this experiment was to determine whether age differences noted when two tasks are performed concurrently can be accounted for in terms of age differences in single task baseline performance. Subjects were two groups of 12 eight-year-olds, and one group of 12 thirteen-year-olds. (CM)