Effects of bottom-up and top-down intervention principles in emergent literacy in children at risk of developmental dyslexia: a longitudinal study

This longitudinal study focused on the effects of two different principles of intervention in children at risk of developing dyslexia from 5 to 8 years old. The children were selected on the basis of a background questionnaire given to parents and preschool teachers, with cognitive and functional magnetic resonance imaging results substantiating group differences in neuropsychological processes associated with phonology, orthography, and phoneme-grapheme correspondence (i.e., alphabetic principle). The two principles of intervention were bottom-up (BU), "from sound to meaning", and top-down (TD), "from meaning to sound." Thus, four subgroups were established: risk/BU, risk/TD, control/BU, and control/TD. Computer-based training took place for 2 months every spring, and cognitive assessments were performed each fall of the project period. Measures of preliteracy skills for reading and spelling were phonological awareness, working memory, verbal learning, and letter knowledge. Literacy skills were assessed by word reading and spelling. At project end the control group scored significantly above age norm, whereas the risk group scored within the norm. In the at-risk group, training based on the BU principle had the strongest effects on phonological awareness and working memory scores, whereas training based on the TD principle had the strongest effects on verbal learning, letter knowledge, and literacy scores. It was concluded that appropriate, specific, data-based intervention starting in preschool can mitigate literacy impairment and that interventions should contain BU training for preliteracy skills and TD training for literacy training.     

Effects of three interventions on the reading skills of children with reading disabilities in grade 2

In a longitudinal intervention study, the effects of three intervention strategies on the reading skills of children with reading disabilities in Grade 2 were analyzed. The interventions consisted of computerized training programs: One bottom-up intervention aimed at improving word decoding skills and phonological abilities, the second intervention focused on top-down processing on the word and sentence levels, and the third was a combination of these two training programs (n = 25 in each group). In addition, there were two comparison groups, 25 children with reading disabilities who received ordinary special instruction and 30 age-matched typical readers. All reading disabled participants completed 25 training sessions with special education teachers. All groups improved their reading skills. The group who received combined training showed higher improvements than the ordinary special instruction group and the typical readers. Different cognitive variables were related to treatment gains for different groups. Thus, a treatment combining bottom-up and top-down aspects of reading was the most effective in general, but individual differences among children need to be considered.     

Governing the virtual academic commons

This paper investigates the way in which certain institutions governing the common resources shared by academics and others are affected by the increase in communication facilities, disciplinary transgression and the value of knowledge. By taking its point of departure from concepts such as ‘tragedy of the commons’ and social dilemmas, the paper argues that institutions which have traditionally governed the so called ‘academic commons’ are now challenged by a number of factors pertinent to the evolution of knowledge society. As a result the governance principles for the academic commons must be further explicated and revised in the light of the new situation. A case in point from a recent on-line initiative by the US National Institute of Health (NIF) is presented to illustrate how such institutions can be built. Finally, a number of governance strategies are presented for an increasingly wired “virtual academic commons”.     

Formal numerical characteristics of closed constrained incremental successive substitution algorithms

This paper establishes the formal numerical characteristics of closed constrained incremental successive substitution algorithms. The overall formalism gives detailed consideration to such items as the determination of: safety zones wherein the algorithm possesses inherently stable convergence characteristics; existence, uniqueness and convergence properties; formal limitations on the class of functions to which the scheme applies and lastly, establishes self-adaptive attributes. To simplify the presentation, the operators employed are cast in the functional format associated with nonlinear heat conduction.     

Potential of service-learning to promote sustainability competencies in pre-service teachers: a case study

This research investigates the potential of service-learning to develop a situated, embodied and critically reflective human agency for sustainability. It employs document analysis to review the intended curriculum and the institutional contexts of national and international cases wherein service-learning is a component of pre-service teacher education. Exploration of intended learning outcomes and project and assessment experiences across three cases reveal the potential of service-learning to develop in pre-service teachers sustainability competencies involving participative action with community partners to achieve agreed-upon outcomes, as well as critically reflective capacities and understanding of how, in their future classrooms, schools and communities, they can serve as adaptive, lifelong learners and agents for social and environmental change. Findings also suggest that explicitly linking service-learning activities, guided by social justice and equity principles, with a (social) sustainability agenda may further validate the utilisation of and investment in service-learning and civic engagement in teacher and higher education settings.     

Self-efficacy and strategies to influence the study environment

This study investigates the relationship between student influence and academic self-efficacy in a sample of 275 students in two Master's programmes in Engineering. Students in only one of the programmes studied according to problem-based learning (PBL). Results indicate that students choosing strategies to influence course content or structure, through course evaluation and recommending changes to teachers had significantly higher self-efficacy beliefs than those who did not use such strategies. It is principally the students who studied according to PBL that demonstrated higher self-efficacy beliefs, actively influenced their studies through engaging in debate with teachers. It can be claimed that increasing student self-efficacy beliefs is important not only in academic performance, but also in influencing in a positive way the institutional atmosphere.     

Positive Emotional Responses to Hybridised Writing about a Socio-Scientific Issue

In order to understand better the role of affect in learning about socio-scientific issues (SSI), this study investigated Year 12 students’ emotional arousal as they participated in an online writing-to-learn science project about the socio-scientific issue of biosecurity. Students wrote a series of hybridised scientific narratives, or BioStories, that integrate scientific information about biosecurity with narrative storylines, and uploaded these to a dedicated website. Throughout their participation in the project, students recorded their emotional responses to the various activities (N = 50). Four case students were also video recorded during selected science lessons as they researched, composed and uploaded their BioStories for peer review. Analysis of these data, as well as interview data obtained from the case students, revealed that pride, strength, determination, interest and alertness were among the positive emotions most strongly elicited by the project. These emotions reflected students’ interest in learning about a new socio-scientific issue, and their enhanced feelings of self-efficacy in successfully writing hybridised scientific narratives in science. The results of this study suggest that the elicitation of positive emotional responses as students engage in hybridised writing about SSI with strong links to environmental education, such as biosecurity, can be valuable in engaging students in education for sustainability.     

The links between students’ relationships with teachers,likeability among peers,and bullying victimization: the intervening role of teacher responsiveness

Highly responsive teachers tend to foster behaviors that are low in conflict and high in prosociality, among their students, leading to a positive classroom climate and to a decrease in bullying victimization. However, little is known about the interaction between teacher responsiveness and both student–teacher, and student–student relationship characteristics, in influencing students’ bullying victimization at school. Here, we examined student–teacher relationship quality and students’ likeability among peers as predictors of in-school victimization. Additionally, we investigated the moderating role of teacher responsiveness over this link. Study sample consisted of 386 early-adolescent students (55.2% female, mean age [SD] = 12.17 [0.73]) and 19 main teachers (females, n = 14). Findings indicated that students’ exposure to victimization was positively associated with student–teacher conflict and negatively associated with likeability among classroom peers. Teacher responsiveness did not show a significant direct association with bullying victimization. However, when teachers showed high responsiveness, the strength of the association between student–teacher conflict and students’ likelihood of bullying victimization was slightly increased. The present study highlights the importance of considering the role of teacher responsiveness when modeling the link between student and teacher relationship quality and in school bullying victimization.