Development of cognitive abilities in children unable to move normally because of brain injury is discussed and data cited which do not support theories that intelligence emerges from sensory-motor reactions. (Author/KW)

Growing out of a child's cognitive developmental history, formal operation becomes established at about the age of 12-15 years. The essence of the logic of cultured adults and the basis for elementary scientific thought are thereby provided. The rate at which a child progresses through the developmental succession may vary, especially from one…

"For seven to nine year old children, it is easier to conserve weight on plasticine rather than on a rubber band or on alcohol in a thermometer . . . Boys perform significantly better than girls." (Author/AL)

A review of Studies in Cognitive Development: Essays in Honor of Jean Piaget (Oxford Univ. Press, 1969) by David Elkind and John H. Flarell (Eds). (DS)

Reports results of short-term training procedures upon the acquisition of the concept of conservation in children. (DR)

Eight-year-olds were able to make inferential judgments based on transitive size relations, while 6-year-olds were not. In addition, more older than younger subjects evidenced serial ordering, presumably a prerequisite for transitive inference. (MH)

Consistent age changes suggest 2 overlapping developmental dimensions: (1) The ability to deal with visible versus invisible displacements, and (2) with nonsequential versus sequential displacements. Other findings are included. (MH)

Discusses theoretical and practical questions regarding the development of pride and shame in children, which is claimed to be linked to both cognitive-developmental factors and socialization. Specific developments through childhood and adolescence in the conditions that produce pride and shame are proposed. (Author/RH)

Argues that the status of the concept of equilibration is classified by considering Piagetian theory as a research program in the sense elaborated in 1974 by Lakatos. A pilot study was made to examine the precision and testability of equilibration in Piaget's 1977 model.(Author/RH)

Describes three unique characteristics of adult thought: (1) an understanding of the relativistic nature of knowledge, (2) an acceptance of contradiction as a part of reality, and (3) an integrative approach to thinking. Analysis of the philosophical foundations of these characteristics is followed by critical examination of current studies of…