Increasing working memory (WM) capacity is often cited as a major influence on children's development and yet WM capacity is difficult to examine independently of long-term knowledge. A computational model of children's nonword repetition (NWR) performance is presented that independently manipulates long-term knowledge and WM capacity to determine…

Individuals with Down syndrome are predisposed to show a specific behavioural phenotype, or a pattern of strengths and challenges in functioning across different domains of development. It is argued that a developmental approach to researching the Down syndrome behavioural phenotype, including an examination of the dynamic process of the unfolding…

Researchers in the fields of cognitive and language development have made less use of large-scale longitudinal designs and of person-centered approaches to data analysis than have researchers in the fields of social and personality development. It is argued that differences among domains of developmental psychology in the research methods employed…

Results of this study demonstrate that constraint-seeking conceptual strategies can be trained in children as young as 6 years of age. (Authors/CB)

The development of children's conceptualization of various roles appears to parallel general conceptual development. That is, there appears to be a developmental progression from role concepts based on concrete-specific acts and details to those based on general abstract functions. (Author)

While father absence due to divorce, desertion, or separation had the most negative influence in the initial 2 years of the child's life for boys and girls, father absence due to death was the most detrimental when it occurred in the 6 - 9 period of the boy's life. (Author)

Twenty 4-year-old children were randomly assigned to one of two experimental groups or to a control group in an attempt to determine whether or not training of left-right relational concepts would improve (1) the subjects' left-right relational skills and (2) their ability to better perform on tasks of spatial perspective. All children were…

The Cognitive Developmental Early Childhood program at Pennsylvania State University has formulated a program, curriculum, and evaluation system guided by Piagetian theory. The evaluation system described in this paper is a result of an intensive examination of the purposes and types of evaluation systems for their compatibility with the Piagetian…