Developmental Dyscalculia and Down Syndrome: Indicative Evidence

ABSTRACT

This study investigated the hypothesis that developmental dyscalculia is part of the behavioural phenotype of Down syndrome. One hundred and fifty-one individuals with Down syndrome across three age groups contributed data. These age groups were: 6–8 years (n = 41); 13–15 years (n = 70); and 20–22 years (n = 40). Data were collected using the Stanford-Binet (Fourth Edition) and age equivalent scores on the Pattern Analysis and Quantitative subscales were used in the analyses. A repeated measure ANOVA showed a significant difference between performances on the two subtests with an interaction with age group. While performance on Pattern Analysis was better than on Quantitative for all groups the difference was most marked for the oldest group. Approximately 66% of the participants had a higher age equivalent score on the Pattern Analysis subscale than on the Quantitative subscale. It appears to be plausible that developmental dyscalculia contributes to the behavioural phenotype of Down syndrome and further investigation of this proposition is warranted.     

Reduced Autobiographical Memory Specificity Among Maltreated Preschoolers: The Indirect Effect of Neglect Through Maternal Reminiscing

Maternal reminiscing and preschoolers’ (M = 5.00 years, SD = 1.11) autobiographical memory specificity (AMS) were examined among abusive (n = 24), neglecting (n = 78), emotionally maltreating (n = 32), and demographically similar nonmaltreating families (n = 74). Neglect was negatively associated with child AMS and the quantity of maternal elaborations. In a moderated mediation model, neglect was negatively associated with the quantity of maternal elaborations, which was positively associated with AMS when mothers reminisced in a coherent and sensitive manner (i.e., affective quality). In the context of high maternal affective quality, maternal elaborative quantity accounted for reduced AMS among neglected preschoolers. The findings extend observations of reduced AMS to neglected preschoolers and inform theoretical models of autobiographical memory development.     

Empathic design: imagining the cognitive and emotional learner experience

Educational technology research and development - In an effort to create meaningful user experiences, instructional designers participate in continuous projection and reflection during design....     

Comparing cognitive performance in illiterate and literate children

While it is known that the process of becoming literate begins in early childhood and usually involves several years of schooling, research related to cognitive characteristics has been done mostly on illiterate adults, and information concerning illiterate children is therefore limited. The aim of the present study, involving 21 illiterate and 22 literate Mexican children aged 6 to 13, was to investigate the effects of literacy on neuropsychological characteristics during childhood. The children??s performance on 16 cognitive domains of the Evaluación Neuropsicológica Infantil (ENI, Child Neuropsychological Assessment) was examined in three mixed within- and between-groups profile analyses. The results suggest that the effect of literacy observed in adults is already evident in children in almost every task analysed. Moreover, the fact that an age effect was detected for the calculation abilities suggests that maths learning is school- and environment-dependent.     

Notes on contributors

This article examines how teacher thinking is socially negotiated yet individually enacted. Through a case study approach, the author explores how the identities of a first-year kindergarten teacher were fashioned linguistically as she moved through the contexts of her teacher education program, the elementary school in which she taught and the personal aspects of her life. Using ethnographic techniques, multiple layers of data were gathered in nested contexts. A theoretical framework was developed by juxtaposing the work of the Russian theorists Valentin Volosinov on the concept of ideologies and M.M. Bakhtin on his notions of language to guide the analysis of data. Findings indicate that by providing prospective teachers with the tools for conceptualizing teacher thinking as social, teacher educators can provide future educators with alternative ways to author their identities and help them to understand that they can create possibilities for all children.     

Power to Do…What? Department Heads’ Decision Autonomy and Strategic Priorities

Using questionnaire data from the 2010 Survey of Academic Chairs, the study focuses on decision autonomy, a component of the power wielded by science, technology, engineering and mathematics (STEM) department chairs in U.S. research extensive universities. A “power index” is developed to measure chairs’ decision autonomy, specifically their control of resources employed in negotiations with faculty job candidates. The study asks: What determines the degree of decision autonomy power possessed by department heads; and, what are the strategic implications of department heads’ degree of this particular aspect of power? Results of an ordered logistic regression model show that having more power is associated with being hired from outside the current university, being male, and with department size. The power index is employed to predict departmental strategic priorities. Results show that the power index is positively associated with a strategic priority for research. The results show a negative relationship between degree of chair decision autonomy and a priority to increase faculty lines. A student-focused strategy is not predicted by the power index but is related to the size, with larger departments placing less emphasis on numbers or quality of students.