Edith Cowan University

About: Edith Cowan University is a education organization based out in Perth, Western Australia, Australia. It is known for research contribution in the topics: Population & Context (language use). The organization has 4040 authors who have published 13529 publications receiving 339582 citations. The organization is also known as: Edith Cowan & ECU.

The Emotion Regulation Questionnaire: Psychometric Properties in General Community Samples

Abstract: The Emotion Regulation Questionnaire (ERQ) is a 10-item self-report measure of 2 emotion regulation strategies, cognitive reappraisal and expressive suppression. It is a widely used measure of emot...

Preservice Teachers' Knowledge of Difficulties in Decimal Numeration

Abstract: In this study we investigated preservice elementary school teachers' content knowledge and pedagogical content knowledge of decimal numeration. The preservice teachers completed a decimal comparison test, marked items they thought would be difficult for students, and explained why. Only about 80 percent of the sample tested as experts, indicating that a significant proportion of preservice teachers have inadequate content knowledge of decimals. Confusion about the size of decimals in relation to zero was a significant and unexpected difficulty, leading to concerns about the fragmentary nature of the preservice teachers' knowledge. Most preservice teachers were aware of longer-is-larger misconceptions in students, but had little awareness of shorter-is-larger misconceptions. Preservice teachers' explanations for the reasons students might have difficulty demonstrated that many are good at identifying features that make comparisons difficult but less able to explain why these cause trouble. Results point to the need for teacher education to emphasise content knowledge that integrates different aspects of number knowledge, and pedagogical content knowledge that includes a thorough understanding of common difficulties.

A blood-based predictor for neocortical Aβ burden in Alzheimer's disease: results from the AIBL study.

Abstract: Dementia is a global epidemic with Alzheimer's disease (AD) being the leading cause. Early identification of patients at risk of developing AD is now becoming an international priority. Neocortical Aβ (extracellular β-amyloid) burden (NAB), as assessed by positron emission tomography (PET), represents one such marker for early identification. These scans are expensive and are not widely available, thus, there is a need for cheaper and more widely accessible alternatives. Addressing this need, a blood biomarker-based signature having efficacy for the prediction of NAB and which can be easily adapted for population screening is described. Blood data (176 analytes measured in plasma) and Pittsburgh Compound B (PiB)-PET measurements from 273 participants from the Australian Imaging, Biomarkers and Lifestyle (AIBL) study were utilised. Univariate analysis was conducted to assess the difference of plasma measures between high and low NAB groups, and cross-validated machine-learning models were generated for predicting NAB. These models were applied to 817 non-imaged AIBL subjects and 82 subjects from the Alzheimer's Disease Neuroimaging Initiative (ADNI) for validation. Five analytes showed significant difference between subjects with high compared to low NAB. A machine-learning model (based on nine markers) achieved sensitivity and specificity of 80 and 82%, respectively, for predicting NAB. Validation using the ADNI cohort yielded similar results (sensitivity 79% and specificity 76%). These results show that a panel of blood-based biomarkers is able to accurately predict NAB, supporting the hypothesis for a relationship between a blood-based signature and Aβ accumulation, therefore, providing a platform for developing a population-based screen.

‘You Couldn't Say “No”, Could You?’: Young Men's Understandings of Sexual Refusal

Abstract: While several psychological theories of rape have been developed, Tannen's ‘ miscommunication’ model is dominant, informing ‘expert’ and popular accounts alike. Rape is constructed as an extreme example of miscommunication – whereby women's ‘failure’ to say ‘no’ is interpreted by men as sexual consent. Kitzinger and Frith have demonstrated that young women have an implicit understanding of the normative interactional structure of refusal, and it is this that explains their difficulty in ‘just saying no’ to unwanted sex. However, Kitzinger and Frith's study could not demonstrate, but only argue, that young men share this sophisticated understanding, such that women saying ‘no’ should not be necessary to refuse sexual intimacy. Here we extend Kitzinger and Frith's study, via the analysis of data from two focus groups held with young men. We demonstrate that, as Kitzinger and Frith suggested, men not only do have a refined ability to hear verbal refusals that do not contain the word ‘no’, but also – and importantly – an equally refined ability to ‘hear’ the subtlest of non-verbal sexual refusals.

Family and social networks after bereavement: experiences of support, change and isolation

Abstract: The role of family and social support networks on grief experiences following the death of a family member in a road traffic accident is explored. Twenty-one bereaved informants were interviewed and the data analysed using grounded theory methodology. We outline the ways in which a crash fatality impacts upon familial and social relationships. The data clearly demonstrate that although the death of a loved one precipitated closer familial and social bonds in some instances, it was more common that those relationships deteriorated and collapsed. Implications for service delivery, grief education and research are discussed.