9 resultados para Language sciences

em Deakin Research Online - Australia


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Rapid processing deficits have been the subject of much debate in the literature on specific language impairment (SLI). Hari and Renvall (2001) [Hari, R. & Renvall, H. (2001). Impaired processing of rapid stimulus sequences in dyslexia. Trends in cognitive sciences, 5, 525–532.] proposed that the source of this deficit can be attributed to sluggish attentional shifting abilities. That is, more time is required to shift attention between stimuli. To test this claim, 26 adolescents with SLI (divided into two subgroups to control for differences in non-verbal intelligence) and 14 controls were presented with a rapid serial visual presentation task. In this task participants were asked to detect two visual targets presented serially with distracter items with varying inter-target intervals (i.e., time difference between targets). This task was designed to elicit an attentional blink (AB). The AB describes the phenomenon whereby non-impaired individuals are less likely to report the second of two targets presented within 200–500 ms of each other. After controlling for group differences in non-verbal intelligence, the SLI group was found to be significantly less accurate than the control group at successfully reporting the second target at inter-target intervals of 100, 200, 300, 400 and 800 ms. The results were interpreted to suggest that adolescents with language impairments have an AB which differs from non-impaired individuals in both magnitude and duration.

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PURPOSE: This study aimed to quantify the non-hospital healthcare costs associated with language difficulties within two nationally representative samples of children. METHOD: Data were from three biennial waves (2004-2008) of the Longitudinal Study of Australian Children (B cohort: 0-5 years; K cohort: 4-9 years). Language difficulties were defined as scores ≤ 1.25 SD below the mean on measures of parent-reported communication (0-3 years) and directly assessed vocabulary (4-9 years). Participant data were linked to administrative data on non-hospital healthcare attendances and prescription medications from the universal Australian Medicare subsidized healthcare scheme. RESULT: It was found that healthcare costs over each 2-year age band were higher for children with than without language difficulties at 0-1, 2-3, and 4-5 years, notably 36% higher (mean difference = $AU206, 95% CI = $90, $321) at 4-5 years (B cohort). The slightly higher 2-year healthcare costs for children with language difficulties at 6-7 and 8-9 years were not statistically different from those without language difficulties. Modelled to the corresponding Australian child population, 2-year government costs ranged from $AU1.2-$AU12.1 million (depending on age examined). Six-year healthcare costs increased with the persistence of language difficulties in the K cohort, with total Medicare costs increasing by $192 (95% CI = $74, $311; p = .002) for each additional wave of language difficulties. CONCLUSION: Language difficulties (whether transient or persistent) were associated with substantial excess population healthcare costs in childhood, which are in addition to the known broader costs incurred through the education system. It is unclear whether healthcare costs were specifically due to the assessment and/or treatment of language difficulties, as opposed to conditions that may be co-morbid with or may cause language difficulties.

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This study estimates the causal effects of language proficiency on the economic and social integration of Australian immigrants. Identifying the effects of languages on socioeconomic outcomes is inherently difficult owing to the endogeneity of language skills. Using the phenomenon that younger children learn languages more easily than older children, we construct an instrumental variable for language proficiency. To achieve this, we consider the age at arrival of immigrants who came as children from Anglophone and non-Anglophone countries. We find a significant positive effect of English proficiency on wages and promotions among adults who immigrated to Australia as children. Higher levels of English proficiency are associated with increased risk-taking, more smoking, and more exercise for men, but have considerable health benefits for women. English language proficiency has a significant influence on partner choice and a number of social outcomes, as well as on children's outcomes, including their levels of academic achievement. The results are robust to alternative specifications, including accounting for between-sibling differences and alternative measures of English skills.

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Culturally specific language practices related to vernacular uses of taboo language such as swearing represent a socially communicative minefield for learners of English. The role of classroom learning experiences to prepare learners for negotiation of taboo language use in social interactions is correspondingly complicated and ignored in much of the language teaching research literature. English language teachers confront not only obstacles to effective development of sociolinguistic and cultural knowledge in classroom instruction, and failure of course-books to address taboo language, but also uncertainties they themselves have about addressing such obstacles and omissions. In this paper, we draw on interview data from three experienced teachers of English as an additional language, to explore their perceptions and classroom practices in relation to taboo language. In particular, we explore the situational appropriateness of mild taboo swearing using the lexical item, bloody, which has a strong positioning in Australian language culture. Dilemmas surrounding this potentially troublesome item of Australian English are foregrounded in relation to the extent to which often neglected, but widely used taboo language is actually ‘taboo’ in the classroom.

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Efforts have been made over many years by applied linguists in a number of English-speaking countries to raise awareness of language across the primary and secondary school curriculum, with varying degrees of success (see Denham & Lobeck, 2010). Many of these countries are sites of mass migration from non-English speaking countries, creating linguistic equity issues. In Australia, the new National Curriculum mandates that teachers of all disciplines will be required to provide pedagogy responsive to the language learning needs of English as an Additional Language (EAL) students. However, policy documents do not specify how this goal should be realized, and teachers and researchers are engaged in constant debate about what views of language could inform teacher training (e.g. structural and/or functional). This paper reports on a project which aimed to identify 1) the views of teacher educators on language in the curriculum, and 2) the language-related challenges faced by teachers in training. The current paper focuses on the language awareness of trainee teachers. Ten education students were interviewed about their understandings and experiences of language and language learning. It was found that many students experienced lack of confidence and knowledge about language (KAL), but that awareness of sociocultural elements of language provided them with ways to connect with a broader understanding of language issues. Results were analyzed from the perspective of sociocultural theory and will have implications for teacher training in any educational context where students are learning an additional language in order to integrate into a national schooling system.

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Clinical handover is a key communication event in patient care and a major contributing factor in adverse events in hospitals. Current research on handover emphasizes communication skills training. We investigate the intergroup context and systemic factors of the hospital environment that also affect handover. We explore the responses of 707 health professionals about handover practice. We invoke Coupland and colleagues’ integrative model of “miscommunication” to interpret these. Results support the model. Responses reflect a lack of communication competency, intergroup group relations, and the hidden ideology of the health care system. Health professionals in hospitals are often unaware of the socio-structural element in health care and so cannot bring about cultural change. We suggest that clinicians work with communication and interdisciplinary scholars to bring about system improvement.

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This paper explores the views of nursing and medical domain experts in considering the standards for a specific-purpose English language screening test, the Occupational English Test (OET), for professional registration for immigrant health professionals. Since individuals who score performances in the test setting are often language experts rather than domain experts, there are possible tensions between what is being measured by a language test and what is deemed important by domain experts. Another concern is a lack of qualitative research on the process of the standard setting. To date, no published qualitative work has been identified about the contributions of domain experts in the standard setting for healthcare communication. In this study, a standard-setting exercise was conducted for the speaking component of the OET, using judgements of nursing and medical clinical educators and supervisors. In all, 13 medical and 18 nursing clinical educators and supervisors rated medical and nursing candidate performances respectively. These performances were audio-recorded OET role-plays that were selected across a range of proficiency levels. Domain experts were invited to comment on the basis of their decisions and the extent of alignment between these decisions and the criteria used to assess performance on the OET. Nursing and medical domain experts showed that they attended to all of the OET criteria in making their decisions about standards. However, clinical scenario simulation also invited judgements of clinical competence from participants, even where they knew that clinical competence should be excluded from their decision-making. Another concern related to the authenticity limitations of the role-play tasks as evidence of readiness to handle communication in the workplace. Overall, findings support the value of qualitative evidence from the standard setting in providing insight into the factors informing and impeding decision-making.

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Health literacy is an important construct in population health and healthcare requiring rigorous measurement. The Health Literacy Questionnaire (HLQ), with nine scales, measures a broad perception of health literacy. This study aimed to adapt the HLQ to the Danish setting, and to examine the factor structure, homogeneity, reliability and discriminant validity. The HLQ was adapted using forward-backward translation, consensus conference and cognitive interviews (n = 15). Psychometric properties were examined based on data collected by face-to-face interview (n = 481). Tests included difficulty level, composite scale reliability and confirmatory factor analysis (CFA). Cognitive testing revealed that only minor re-wording was required. The easiest scale to respond to positively was 'Social support for health', and the hardest were 'Navigating the healthcare system' and 'Appraisal of health information'. CFA of the individual scales showed acceptably high loadings (range 0.49-0.93). CFA fit statistics after including correlated residuals were good for seven scales, acceptable for one. Composite reliability and Cronbach's α were >0.8 for all but one scale. A nine-factor CFA model was fitted to items with no cross-loadings or correlated residuals allowed. Given this restricted model, the fit was satisfactory. The HLQ appears robust for its intended application of assessing health literacy in a range of settings. Further work is required to demonstrate sensitivity to measure changes.