Presents a study of the development of conservation of weight among socially deviant adolescents. (BD)

The effects of perceptual and cognitive factors on information processing in visual periphery were studied in 5- and 8-year-old children and in adults. Subjects judged either the similarity (Study 1) or identity (Study 2) of geometric forms. (Author/SB)

Examined the relationship of ability to conserve and comprehend of logical riddles in 33 first-, third- and fifth-grade boys of average intelligence. Although both riddle comprehension and cognitive maturity as assessed by Piagetian tasks increased with grade, the relation between them was not clearly demonstrated. (Author/JMB)

The relationships between perception and conservation of length were investigated in a developmental comparison of judgments of length made by 5-year-olds, 8-year-olds and adults. (GO)

Subjects in grades 4 through 12 were asked to respond to the question "Who am I?" Their responses were analyzed for self-conceptions by means of a 30-category scoring system. Results were in agreement with Werner's notion that cognitive development proceeds from a concrete to an abstract mode of representation. (Author/JMB)

A series of three experiments was conducted to verify the hypothesis that age differences in paired-associate learning proficiency across adolescence stem from the development of increasing eleaborative propensity. (Author/JMB)

A total of 180 6-, 8-, and 10-year-old children participated in tasks employing an object array in which the views from the experimental positions were objectively of equal difficulty. (SB)

First-, third-, fifth-, and sixth-grade children were administered 20 relational reasoning problems in which they had to deduce the possible sizes of one item relative to two others on the basis of a visual comparison and a written clue. Dramatic differences were observed between fifth- and sixth-grade children. Corrective feedback improved…

The hypothesis that differences in definitions of perceived internality in Piagetian and locus of control viewpoints account for paradoxical findings was tested empirically using two independent samples of children. Results suggest that perceived internality depends on the aspects of means-ends beliefs on which one focuses.

Examines Kail's argument that similarity in developmental speed-of-processing curves for name retrieval and mental rotation indicates that performance on a wide range of cognitive tasks is constrained by growth of a central limiting mechanism. Results suggest that operation of this mechanism is neither sufficient nor necessary to generate the…

Dual task procedures (finger tapping and associative memory) were used to examine developmental differences in the amount of mental effort required to deploy rehearsal and elaboration. Sixth-grade and college students participated. Some evidence for a developmental difference in mental effort was found. (TJH)

The relationship between the manner in which environments are encountered and the nature of environmental features in the construction of spatial representations was examined. It was found that performance of a thematic activity facilitated construction of a spatial representation of a large-scale environment. (PCB)

Summarizes school readiness and retention research issues, including youngest first graders' performance, entrance age policies, voluntary decisions to wait an extra year, assessment of children's readiness, and the negative effects of kindergarten and first-grade retention. Concludes that age disadvantages are seldom serious and usually disappear…

Reports two experiments in which eight patients with organic memory disorders exhibited a pattern of search behavior that resembled mnemonmic precedence--the ability to retrieve an object at an initial location, but not at a new location. (HOD)

Examines kindergartners' and second graders' knowledge of concept attribute importance and the children's use of this knowledge to categorize. (HOD)