Exploratory and play behavior were studied in young children using three dimensional random polygon objects. (ST)

This paper describes a delayed response experiment which tested children's memory for the location of a hidden object. Eight boys and eight girls at each of two age levels (25 and 37 months) were assigned to each of four experimental conditions and given eight trials in a 9-choice task. On each trial the child saw the object hidden in one of nine…

This experiment tested the hypothesis that dream recallers would have better memory for visual stimuli than dream nonrecallers. (Editor)

Children from grades 1, 3, and 5 were exposed (in pairs) to a series of slides accompanied by descriptive statements, and invited to ask questions. Questions were answered for 1 subject in each pair. A clear reinforcing effect of providing answers to children's questions was found. (Author/CS)

Treats the problem of testing an ordered hypothesis based on the ranks of the data. Statistical procedures for the randomized block design with more than one observation per cell are derived. Multiple comparisions and estimation procedures are included. (Author/RC)

Given reflection symmetry, the moment generating function symmetry is necessary and sufficient for the random walk model to be equivalent to a sequential probability ratio test. For a related article, see TM 501 715. (Author/RC)

In two experiments, volunteer subjects were asked to look at words and pictures, with or without an interference task. The results are interpreted to support a theory of a separate but not totally independent pictorial memory system. (Editor)

An investigation of 4-month-old children's attention responses to pattern dimensions and orientations by comparing the duration of an infant's fixation to changes in the orientation and structural arrangement of a previously exposed pattern. (ED)

Research is reported which examined the effect of various factors on the frequency of phonological responses. Phonemic order and location of clusters within a syllable affected fusion. Initial stop-liquid clusters fused readily; final liquid-stop clusters rarely fused. Some subjects fused on most or all trials; others fused less frequently.…

Aphasic children were taught to communicate via a system of visual symbols devised by Premack (1969) for use with chimpanzees. Subjects readily learned to express several language functions in this way. "Premackese" is seen better viewed as a communication system. It may be that Aphasic children lack some specifically linguistic ability.…

The primary purpose of this article is to describe, justify, and elaborate a preliminary quantitative model for a subset of the letter-identification process. (Author)