A study explored working memory (WM) capacity, WM task requirements, as well as effects between WM, skills, knowledge base, and intelligence in adults with mental retardation and children aged 3-6 years. Adults were better on measures reflecting skills and knowledge base. Children performed better in phonological and visuo-spatial WM tasks.…

Examined: (1) what is the self-concept of a 6-year-old child; (2) what is the picture of a child (real and ideal) in parents' minds; and (3) the relation between self-concept of a child and the picture in parents' minds. Found that perceptions of the child were positive, and clear conformity between parents' image of their child and children's…

A reading-specific multiple classification task was designed that required children to classify printed words along phonological and semantic dimensions simultaneously. Reading-specific multiple classification skill made a unique contribution to children's reading comprehension over contributions made by age, domain-general multiple classification…

This study examined developmental changes in lexical comprehension in 100 bilingual individuals at five age levels, all of whom had learned Spanish as a first language and English beginning at age 5. Although skills improved in both languages over time, by middle childhood performance was better in English, with this transition occurring earlier…

Addresses the implementation and evaluation of a constructivist course and extends the argument toward the induction of teachers into critical constructivism through their own action-research projects. Data is taken from a single case study illustrating the changes in the professional life and reflective practice of one teacher in Brazil. (AIM)

The Mayes Motor Free Compilation (MMFC) assesses mental ability in young (under age 2) children with motor disabilities. This study evaluated the concurrent validity of the MMFC by administering it and the Bayley Scales of Infant Development to normal children. Findings suggest that the MMFC provides a valid estimate of mental age, even without…

Evaluated the PREG conceptual model of human question asking. Found the model was sufficient as it accounted for nearly all of the questions produced by students, and was discriminating in that it could identify the conditions in which particular classes of questions are or are not generated. (Author/SD)

Personal responsibility has long been considered an important component in self-directed learning. And yet, a theoretical understanding of personal responsibility that could lead to meaningful instrumentation has eluded the field. The present study considers the merits of the Triangle Model of Responsibility (TMR) (Schlenker, Britt, Pennington,…

The purpose of this study was to investigate the effects of a Computer-Assisted Instruction Material (CAIM) related to "photosynthesis" topic on student cognitive development, misconceptions and attitudes. The study conducted in 2002-2003 academic year and was carried out in two different classes taught by the same teacher, in which…

In this article, we draw from research on cognitive development, sociocultural learning, and organizational development to examine the key factors in teachers' professional learning. Our review of this literature suggests that looking at teachers' prior knowledge, the nature of their interactions, the representations they produce and use, and the…

D.V. Cicchetti, A.S. Kaufman, and S.S. Sparrow (this issue) use six criteria to evaluate the published findings from seven different studies of PCB exposure and neuropsychological function. They point out a number of weaknesses or flaws in each study and conclude that these weaknesses make the overall conclusion that PCB exposure negatively…

Audio-based virtual environments have been increasingly used to foster cognitive and learning skills. A number of studies have also highlighted that the use of technology can help learners to develop effective skills such as motivation and self-esteem. This study presents the design and usability of 3D interactive environments for children with…

An instrument to measure teachers' instructional practices, the Instructional Practice Questionnaire, was developed and validated in three phases. The questionnaires focused on three domains of instructional practices: cognitive, interpersonal, and interpersonal. First, an initial questionnaire was developed for a pilot study, and data were…

Over the course of development, the ability to switch between different tasks on the basis of feedback cues increases profoundly, but the role of performance monitoring remains unclear. Heart rate indexes can provide critical information about how individuals monitor feedback cues indicating that performance should be adjusted. In this study,…

The study examined scaffolding interactions between deaf children and hearing mothers in which story reading was used as a tool to aid in the development of narrative comprehension and linguistic reasoning. The dyadic interactions were examined from the perspective of the theoretical works of Vygotsky (1934/1962, 1978, 1929/1981, 1960/1981). The…