Speech perception deficits in poor readers: a reply to Denenberg's critique

We reply to Denenberg's (1999) recent critique of our work (Mody, Studdert-Kennedy, & Brady, 1997). Denenberg mounted two main lines of criticism, one concerning characteristics of the population sampled for the experimental group, and the other a statistical critique, concerning (a) violation of parametric assumptions for use of the F distribution and (b) our supposed acceptance of the null hypothesis of no differences between experimental and control groups. We show that the first criticism stemmed from a misunderstanding of the experimental hypothesis and that the second can be answered by both parametric and nonparametric comparisons across conditions within the experimental group, without reference to the control group. Thus, our original conclusion stands: The difficulty with rapid /ba/-/da/ discrimination that some children with reading impairment may experience does not stem from difficulty in discriminating the rapid spectral transitions at stop-vowel syllable onsets.     

Theoretical and Practical Perspectives for the Future of Educational and Vocational Guidance in Australia

This article highlights therelationship between social change andeducational and vocational guidance provision,and emphasises the theoretical and practicalimperative to renew and refocus educational andvocational (career) guidance services. Afterdescribing the major influences on a changingeducational and vocational guidance nature andprovision, it describes a number of specificdevelopments in Australia.     

Balancing the Environment: Computational Models as Interactive Participants in a STEM Classroom

Journal of Science Education and Technology - This paper describes the work done by sixth grade students to achieve and sustain productive and personally meaningful lines of inquiry with...     

Designing STEAM Education: Fostering Relationality through Design‐Led Disruption

A significant contention underpinning the commentary around STEM / STEAM is the evidence of discipline hierarchies, and inherent binary perspectives and/or biases that lend themselves to privileging one or more disciplines over another in an interdisciplinary education context. The current focus on increasing engagement with STEM in Australian schools provides opportunities to explore how the creative and liberal arts, and arts‐based approaches to teaching and learning are being adopted to significantly enhance teaching and learning outcomes in and for STEM education. This article examines how design for a STEAM education programme evolves and is adopted in an Australian context. Tasmania represents one of the most vibrant creative communities in Australia. At the same time it has one of the lowest levels of educational attainment. Entrenched teaching habits and disciplinary hierarchies often create significant barriers to the implementation of STEAM despite genuine goodwill and enthusiasm for STEAM among teachers and within schools. This article argues that, despite the contrasting dynamics extant in the Tasmanian educational context, it is here that some of the nation’s most curious and exciting examples of STEAM teaching and learning have emerged. It offers an example of an innovative learning project and proposes the means by which these disciplinary strands have been effectively entwined.     

Scaling Performance Assessments: A Comparison of One-Parameter and Two-Parameter Partial Credit Models

In one study, parameters were estimated for constructed-response (CR) items in 8 tests from 4 operational testing programs using the l-parameter and 2- parameter partial credit (IPPC and 2PPC) models. Where multiple-choice (MC) items were present, these models were combined with the 1-parameter and 3-parameter logistic (IPL and 3PL) models, respectively. We found that item fit was better when the 2PPC model was used alone or with the 3PL model. Also, the slopes of the CR and MC items were found to differ substantially. In a second study, item parameter estimates produced using the IPL-IPPC and 3PL-2PPC model combinations were evaluated for fit to simulated data generated using true parameters known to fit one model combination or ttle other. The results suggested that the more flexible 3PL-2PPC model combination would produce better item fit than the IPL-1PPC combination.     

Short-term memory,phonological processing,and reading ability

Verbal short-term memory deficits are a common characteristic of children with reading problems and may markedly increase the difficulty of learning to read. Previous work suggests that the basis of the short-term memory deficit may involve limitations in phonetic coding. In the present paper, a series of experiments are reviewed which examined the role of phonological processes in short-term memory. First, a developmental study is described in which a significant relationship was found between phonetic processes and verbal memory span, but not between phonetic processes and nonverbal memory. Second, additional studies are reviewed which collectively found that children with reading problems are less accurate at phonetic encoding than are good readers, and that performance on phonetic processing corresponds with verbal memory span. No reading group differences were obtained on nonverbal perception or memory tasks. These findings suggest that both developmental and individual differences in verbal memory span are related to the efficiency of phonological processes. Practical implications of current cognitive research are discussed. The research was supported by NIH Grant HD-01994 to Haskins Laboratories.     

Coloured overlays and their benefit for reading

Children in mainstream schools compared text on white paper with identical text covered in turn by each of ten differently‐coloured plastic overlays. More than 50% reported improved perception with one or more colours, and were given the best colour to use. About half used the overlays for more than three months and their reading speed increased when the overlays were used. In Study I children were examined twice using different methods and examiners. 47% chose the same colour on both occasions, and showed the greatest improvement in reading fluency, reliable at retest. In Study II children were issued with a random colour, and the greatest improvements in reading speed occurred when the random colour was the same as that previously chosen. Phonological reading strategies were not related to visual symptoms, or the benefit from overlays. Across individuals, reading speed varied by a factor of more than three, for good and poor readers. Study III provided estimates of the prevalence of improvements based on a sample of 426 children from 12 schools: 5% of children read more than 25% faster with a coloured overlay.     

Literacy-based behavioural interventions delivered by peers: a teaching strategy for students with severe disabilities

Many children with severe disabilities do not perform basic daily living skills needed for typical school and home environments. Previous research on literacy-based behavioural interventions (LBBIs) has shown promise for promoting skill acquisition and maintenance in some learners; however, only one study has examined the effectiveness of this intervention when delivered by peers. In this study, peer classmates were taught to deliver an LBBI story that highlighted hand-washing skills in three students with severe disabilities. Results showed that the accuracy of students’ new skills increased dramatically after their peers delivered the stories with pictures and printed words, and these skills maintained after the LBBI stories were removed. Further, each of the students demonstrated accurate hand-washing in novel environments using different sinks. This study builds on previous LBBI studies by incorporating peers into the story delivery, and using the intervention to teach new self-care skills.