Most children who are congenitally deafblind are severely delayed in their communication development and many will not achieve symbolic understanding and expression. This article discusses developmental markers cited in the research literature as predictive of or facilitative of the development of symbolism. These markers include the growth toward…

Stanford Binet: Fourth Edition (SB:IV) assessments have been collected longitudinally for 195 individuals with Down syndrome. This article discusses individual assessments which were selected for their ability to highlight major concerns that practitioners need to consider when interpreting intelligence test scores with this population. In this…

In this article I will discuss the route by which I came to work with Cultural Historical Activity Theory (CHAT). The brief tracing of my own biography will highlight theoretical and methodological milestones. I will then discuss my current work, with colleagues, on approaches to investigating and improving the learning of professionals who are…

Developmental research and educational practice involve conversations between children and adults. The conversational aspects of these situations have rarely been occasions for reflection. Discrepancies between the child's expectations and the adult's intentions can lead to misunderstanding, for example, at school or during a research interview.…

Noting the attractions of self-report questionnaires and surveys to those engaged in educational research, this article discusses some of the problems that can arise from their injudicious use. It is argued that the potentially misleading nature of findings from such approaches is particularly highlighted when mixed methodologies are employed.…

The performance of 25 children with Down syndrome (DS) on delay of gratification tasks was compared with that of mental age-matched typically developing children. DS children were significantly less able to delay gratification on two of the three tasks. Results raise questions about using mental age as the method for matching children with DS and…

This article makes the case for early intervention with young children with both developmental and behavioral problems. It cites intervention research that supports the effectiveness of parent management training and the use of applied behavior analysis, but recognizes the need for randomized controlled trials with adequate follow-up and…

A questionnaire was developed and administered to 30 young children with autism and a control group to explore sensory hyper- and hypo-sensitivities. Significant differences were found between groups across all (auditory, tactile, visual, gustatory, and vestibular) domains. Findings are interpreted within the framework of theory of mind and joint…

Investigation of determinants of 143 intermediate grade children's attitudes and behavioral intentions toward peers with physical disabilities found that the children's own attitudes toward inclusion of peers was the strongest predictor of behavioral intentions, though attitudes of teachers, principals, and parents were also significant…

A review of the research on parent training programs for parents with intellectual disabilities found that, of 10 studies, 8 applied single-subject designs, two used quantitative methods, one examined basic child-care skills training, 2 examined decision making in child rearing, 5 were about safety, and 3 addressed the mother-child interaction.…

Evaluation of the Kaufman Assessment Battery for Children (K-ABC) with 130 primary school children in Zaire revealed three findings: (1) the distinction between sequential processing and simultaneous processing was valid; (2) the K-ABC discriminated effectively among grade levels, health and family environment variables, and tribal membership; and…

A conceptual model of quality of life, developed at the Centre for Health Promotion at the University of Toronto (Canada), and associated instrumentation for collecting data from persons with developmental disabilities are presented. Results from a preliminary study with 41 participants support the reliability and validity of the model's…

This report describes a database, Database Problem Behavior, which provides professionals in the area of problem behaviors and developmental disabilities with accessible information beyond their own disciplines. The current machine-readable database encompasses 885 empirical studies on the functional analysis and behavioral and pharmacological…

Examination of developmental scores of 198 infants and young children with Down's Syndrome attending exemplary early intervention programs found more similarity to other children in Personal Social and Adaptive Domains and less similarity in Communication and Cognitive Domains of the Battelle Developmental Inventory. These differences were…

A group of 16 infants (ages 6 to 24 months) with Down's Syndrome (DS) were exposed to two operant learning tasks varying in control of reinforcement. Comparison with chronological and developmental age matched controls found DS subjects characterized by increasing adoption of counterproductive learning behaviors with increasing age. (Author/DB)