Cognitive skills and literacy performance of Chinese adolescents with and without dyslexia

The present study sought to identify cognitive abilities that might distinguish Hong Kong Chinese adolescents with dyslexia and to assess how these abilities were associated with Chinese word reading, word dictation, and reading comprehension. The cognitive skills of interest were morphological awareness, visual-orthographic knowledge, rapid naming, and verbal working memory. A total of 90 junior secondary school students, 30 dyslexic, 30 chronological age controls, and 30 reading level controls was tested on a range of cognitive and literacy tasks. Dyslexic students were less competent than the control students in all cognitive and literacy measures. The regression analyses also showed that verbal working memory, rapid naming, morphological awareness, and visual-orthographic knowledge were significantly associated with literacy performance. Findings underscore the importance of these cognitive skills for Chinese literacy acquisition. Overall, this study highlights the persistent difficulties of Chinese dyslexic adolescents who seem to have multiple causes for reading and spelling difficulties.     

Anger Management Using a Cognitive‐behavioural Approach for Children with Special Education Needs: A literature review and meta‐analysis

This review examines the use of a cognitive‐behavioural approach to anger management in children with special needs in community settings. Eighteen experimental studies involving a total of 408 children were located. The participants were mainly of high school age, with an IQ above 80, and with behavioural or emotional disorders. A moderate effect was observed for improvement in the three dimensions of anger: behaviour, cognition and emotion – although conclusions need to be very tentative. The interventions employed varied greatly in their characteristics and there were concerns about the quality of many studies. Further research is needed to investigate the interaction between intervention features and participant characteristics.     

FAMILY INFLUENCES ON SCIENCE LEARNING AMONG HONG KONG ADOLESCENTS: WHAT WE LEARNED FROM PISA

This study investigated the relationship between family factors and students’ scientific literacy performance in Hong Kong, which has excelled in science performance in previous international studies. Data were obtained from the 2006 Programme for International Student Assessment. Multilevel analysis was used to examine the relationship between parental involvement and investment and students’ scientific literacy performance. It was found that students’ scientific literacy performance, which was measured by their science achievement and self-efficacy towards science, were significantly associated with certain types of parental investment and involvement even after controlling background factors of both students and schools. Parental investment in cultural resources and parental involvement in terms of organising science learning enrichment activities at an early age were found to be significantly associated with students’ scientific literacy performance. Activities that could be provided at an early age (e.g. watching TV programmes about science, reading books on scientific discovery, watching, reading or listening to science fictions) were found to be highly effective activities for promoting children’s science achievement and self-efficacy.     

Effect on development of proportional reasoning skill of physical experience and cognitive abilities associated with prefrontal lobe activity

The present study tested the hypothesis that maturing prefrontal lobes play a role in the development of proportional reasoning skill because the prefrontal lobes are involved in the inhibition of task‐irrelevant information and the representation of task‐relevant information. The hypothesis that reasoning development is in part dependent upon physical experience was also tested. Students (all males) who failed to solve a diagnostic proportions task were administered several tests of prefrontal lobe functions. The students were then randomly assigned to manipulative or verbal tutoring groups. Both groups received a series of individual testing, tutoring and testing sessions on proportional reasoning. As predicted, performance on the prefrontal lobe tasks (measures of inhibiting ability, planning ability, dissembedding ability, and working memory capacity) significantly predicted performance on proportional reasoning tasks following tutoring. Students' computational skills were not a significant predictor. Also, the manipulative group's proportional reasoning performance was significantly higher than that of the verbal tutoring group. Therefore, the present results provide support for the hypothesis that maturing prefrontal lobes and physical experience play roles in the development of proportional reasoning skill. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 1171–1182, 2000     

Confucian values in the teenage fiction of Bernard Ashley

Dr. Laina Ho lectures at the English Language Proficiency Unit, National University of Singapore, having taken a doctorate at the University College of Wales, Cardiff researching the reading interets of teenagers in Singapore in American and British adolescent literature with a focus on reader-response criticism and cross-cultural difference.     

Improvement of rectification effects in diffuser/nozzle structures with viscoelastic fluids

This paper reports the improvement of rectification effects in diffuser∕nozzle structures with viscoelastic fluids. Since rectification in a diffuser∕nozzle structure with Newtonian fluids is caused by inertial effects, micropumps based on this concept require a relatively high Reynolds numbers and high pumping frequencies. In applications with relatively low Reynolds numbers, anisotropic behavior can be achieved with viscoelastic effects. In our investigations, a solution of dilute polyethylene oxide was used as the viscoelastic fluid. A microfluidic device was fabricated in silicon using deep reactive ion etching. The microfluidic device consists of access ports for pressure measurement, and a series of ten diffuser∕nozzle structures. Measurements were carried out for diffuser∕nozzle structures with opening angles ranging from 15° to 60°. Flow visualization, pressure drop and diodicity of de-ionized water and the viscoelastic fluid were compared and discussed. The improvement of diodicity promises a simple pumping concept at low Reynolds numbers for lab-on-a-chip applications.