David Messer

Executive Functioning in Children with Specific Language Impairment.

BACKGROUND A limited range of evidence suggests that children with specific language impairment (SLI) have difficulties with higher order thinking and reasoning skills (executive functioning, EF). This study involved a comprehensive investigation of EF in this population taking into account the contributions of age, nonverbal IQ and verbal ability. METHODS Ten separate measures of EF were assessed in 160 children: 41 had SLI; 31 had low language/cognitive functioning but did not fulfil the criteria for SLI (low language functioning or LLF); and 88 were typically developing with no language difficulties. Group differences in performance were assessed after controlling for age, nonverbal IQ and verbal ability in a series of regression analyses. RESULTS Children with SLI and LLF had significantly lower performance than typical children on 6 of the 10 EF tasks once age and nonverbal IQ had been controlled (verbal and nonverbal executive-loaded working memory, verbal and nonverbal fluency, nonverbal inhibition and nonverbal planning). Performance on these EF tasks remained lower for those in the SLI group even when verbal IQ was entered in the regressions. CONCLUSIONS Children with language impairments showed marked difficulties on a range of EF tasks. These difficulties were present even when adjustments were made for their verbal abilities.

Recall for self and other in autism: children's memory for events experienced by themselves and their peers.

Research on memory processing suggests that memory for events that an individual experiences should be superior to that for similar events that someone else experiences (e.g., Baker-Ward et al., 1990). However, such predictions may not be applicable to individuals with autism. There are already suggestions that individuals with autism have specific difficulties in remembering (Boucher & Lewis, 1989). In addition, they are known to have more general difficulties involving processes related to the “self.” If children with autism have difficulties in encoding information about themselves this could result in a deficit in personal episodic memory. The studies reported here compare memory for personally experienced events with that of memory for events experienced by a peer. An adaption of a method devised by Boucher and Lewis has been employed to assess recall. Two separate studies were conducted to investigate whether children with autism are impaired at recalling personal events. Two groups of children took part in Study 1, a group of children with autism and a control group of typical children matched for verbal mental age. A group of children with moderate learning difficulties were employed in the second study to investigate whether the findings also occur in other groups of individuals who have learning disabilities. Findings indicate that, in the group with autism, events performed by the individual were recalled significantly less well than the observed events performed by a peer. However, the results for the nonautistic children in both studies showed that the opposite was true. Theoretical claims are discussed in the light of these findings.

Prospective Memory in Children: The Effects of Age and Task Interruption

Prospective memory (PM), remembering to carry out a task in the future, is highly relevant to childrens everyday functioning, yet relatively little is known about it. For these reasons the effects of age and task interruption on PM were studied in 3 experiments. Children aged 4, 5, and 7 years were asked to name pictures in stacks of cards (the ongoing task) and to remember to do something when they saw a target picture (the PM task). Significant age differences were identified, but age explained only a small amount of variance. As predicted, children in the no-interruption condition performed significantly better than those who had to interrupt the ongoing activity in order to carry out the PM task. An additional finding was that no relation was detected between performance on prospective and retrospective memory tasks. Taken together, these findings provide support for current models of PM and identify ways to assist childrens PM.

More Gestures Than Answers: Children Learning About Balance

This research extends the range of domains within which childrens gestures are found to play an important role in learning. The study involves children learning about balance, and the authors locate childrens gestures within a relevant model of cognitive development--the representational redescription model (A. Karmiloff-Smith, 1992). The speech and gestures of children explaining a balance task were examined. Approximately one third of the children expressed one idea in speech and another in gesture. These children made significantly more learning gains than children whose gestures and speech matched. Childrens gestures were an indicator, at pretest, of readiness to learn and of cognitive gains. The authors conclude that childrens gestures provide crucial insight into their cognitive state and illuminate the process of learning and representational change.

Spontaneous play in children with autism : A reappraisal

Much controversy remains regarding the ability of children with autism to engage in spontaneous play. In this study children with autism, Down syndrome and typical development with verbal mental ages of approximately 2 years were assessed for play abilities at three data points. Even in this group of children with autism, who had relatively low verbal mental ages, symbolic play skills were not totally absent. However, it was possible to distinguish their pattern of play behaviors from the other two groups. Consequentially, it is argued that there are unusual features in early spontaneous play in children with autism and these atypical patterns are not restricted to their difficulties in the production of symbolic play. Such differences in early spontaneous play raise interesting questions about the etiology of autism, the direction of future research, and the theoretical models that can account for the condition.

Children's engagement with educational iPad apps: Insights from a Spanish classroom

This study investigates the effects of a story-making app called Our Story and a selection of other educational apps on the learning engagement of forty-one Spanish 4-5-year-olds. Children were observed interacting in small groups with the story-making app and this was compared to their engagement with a selection of construction and drawing apps. Childrens engagement was analysed in two ways: it was categorised using Bangert-Drowns and Pykes taxonomy for individual hands-on engagement with educational software, and using the concept of exploratory talk as developed by Mercer et al. to analyse peer engagement. For both approaches, quantitative and qualitative indices of childrens engagement were considered. The overall findings suggested that in terms of the Bangert-Drowns and Pyke taxonomy, the quality of childrens individual engagement was higher with the OS app in contrast to their engagement with other app software. The frequency of childrens use of exploratory talk was similar with the OS and colouring and drawing apps, and a detailed qualitative analysis of the interaction transcripts revealed several instances of the OS and drawing apps supporting joint problem-solving and collaborative engagement. We suggest that critical indices of an apps educational value are the extent to which the app supports opportunities for open-ended content and childrens independent use of increasingly difficult features.

New directions for early literacy in a digital age: the iPad

In this paper, we discuss how iPads offer innovative opportunities for early literacy learning but also present challenges for teachers and children. We lent iPads to a Children’s Centre nursery (3- to 4-year-olds), a primary school reception class (4- to 5-year-olds) and a Special School (7- to 13-year-olds), discussed their potential uses with staff in pre- and post-interviews and observed how they were integrated into practice over a two-month period. We found variability in the ways iPads were used across the settings, but a commonality was that well-planned; iPad-based literacy activities stimulated children’s motivation and concentration. They also offered rich opportunities for communication, collaborative interaction, independent learning, and for children to achieve high levels of accomplishment. In some cases, this led teachers favourably to re-evaluate the children’s literacy competence, and enabled children to construct positive images of themselves in the literacy classroom. Practitioners particularly valued the opportunities iPads afforded to deliver curriculum guidelines in new ways, and to familiarise all students with touch-screen technologies.

The effect of explaining another's actions on children's implicit theories of balance

Children and adults often hold naive intuitive theories about how the physical world around them works, and their misconceptions can be difficult to change. Self-explanations have been found to be effective in producing better understanding of science (Chi, de Leeuw, Chiu, & LaVancher, 1994), and explaining another persons reasoning can also bring about cognitive change (Siegler, 1995). This study deals with one domain of physics-balance-and investigates the effects of 2 interventions on children who had either a procedure for balancing but could not explain it or had a naive theory. We pretested 140 children, ages 5 to 9 years, to assess their ability on a balance beam task and their knowledge about the principles of balance. These children were classified according to levels of representation derived from Karmiloff-Smiths (1992) Representational Redescription model. In this sample, 104 children could not explain the principles of balance or possessed a naive theory that all things had to balance in the center. These children were allocated to 1 of 2 intervention conditions. Approximately half of the children watched the experimenter model the correct solution to the balance task; the rest observed the model and were also encouraged to produce verbal explanations of what they saw. At posttest, a significantly higher number of children from the latter condition had improved their understanding of balance. The positive effects of interpersonal explanation are discussed in relation to Karmiloff-Smiths model of childrens development, and the implications for teaching are highlighted.

Social and communicative processes in computer-based problem solving

This paper overviews the results of four studies designed to investigate the effects of collaborative modes of computer use upon childrens performance and learning. All used the same type of problem solving task, couched within an adventure game format. The first of these studies provides a striking illustration of how children who work in pairs on a route planning task can show better learning outcomes than children who work on the same problem individually. The possible psychological processes mediating this effect are considered. The second study extends this consideration further and seeks to identify those aspects of verbal interaction that underpin productive paired interaction. The third study includes consideration of the efficacy of pairing as a function of the relative ability of pair members. The fourth study focuses upon the effects of working in the presence of others, even in the absence of interaction. Taken together, the results of the third and fourth studies highlight the importance of paying closer attention to the ways in which children construe the particular experimental conditions we create and their own position in relation to them.

Imitation of Pretend Play Acts by Children with Autism and Down Syndrome

Although there has recently been considerable research interest in the difficulties that children with autism have engaging in pretend play, little attention has been paid to the ability of these children to imitate pretend play acts. Furthermore, suggestions that children with Down syndrome have relatively advanced abilities in pretend play have not been accompanied by an examination of their capacity to imitate pretend play. Three groups of children: autistic, Down syndrome, and normally developing were studied for their capacity to imitate single pretend acts and a series of pretend acts that formed scripts. While the children with autism were surprisingly better than the other two groups on the single-scheme task, they demonstrated specific difficulties on the multischeme task. Results are discussed in relation to current theories of autism and the notion of imitation.