1,721,029 research outputs found
Sensory Processing Abnormalities in School-Age Children With Neurodevelopmental Disorders Are Associated With the Range of Learning Difficulties
No full textEste trabajo fue financiado por la Agencia Nacional de Investigación y Desarrollo (ANID)/DOCTORADO BECAS CHILE 72150318
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Developmental dyslexia:Past, present and future
No full textA discrepancy between reading performance and intelligence is generally held to be a defining characteristic of developmental dyslexia. However, intelligence appears not to be an important factor in distinguishing between the reading performance of different groups of poor readers. Some dyslexia researchers have interpreted this null finding as seriously questioning the existence of dyslexia as a disorder independent of general poor reading. I argue that the anti-discrepancy theorists make three conflations of separate issues: research on the cause of poor reading versus research on the cause of dyslexia; phonological deficit as cause of dyslexia versus symptom of dyslexia; research on the causes of dyslexia versus research on the diagnosis or remediation of dyslexia. Once these issues are teased apart, not only does the apparent dilemma disappear, but a new and fruitful research perspective is suggested. Insights arising from this wider research perspective should transform our understanding of the underlying cause(s) of dyslexia, inform the development of earlier and better methods of screening and remediation and contribute significantly to the understanding of human cognitive development.</p
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Diagnosis can Help in Intelligent Tutoring
Full text linkRecently there has been controversy about whether Intelligent Tutoring Systems are. even potentially, more effective than standard C A L programs, that is, whether it is educationally more valuable to attempt to identify the cause of user's mistakes rather than merely explain the correct method. This issue was addressed by comparative testing of two versions of the S U M I T Intelligent Tutoring Assistant for arithmetic using a diagnostic version, which diagnosed errors and gave appropriate messages, and a 'CAL' version was identical in all respects except that it made no diagnoses and therefore gave standard error messages indicating the correct method. In a comparative study of the two versions, a class of 9 year old children were flrst divided into two matched groups on the basis of a pencil and paper pre-tesi, then both groups had two 30 minute individual sessions with the appropriate version of SUMIT, and then performance was assessed on a subsequent pencil and paper post-test. Both groups improved significantly in their performance from pre-test to post-test, but the diagnostic group showed significantly greater reductions in the number of bugs. It is concluded that diagnostic remediation can be more effective than non-diagnostic approaches
The dyslexia ecosystem
No full textIt is all too easy, in everyday interactions in dyslexia, to see the interactions in a semi-adversarial fashion - parents competing to get more support for children, researchers competing to get more support for their theories, schools trying to get more money for their programmes. Such a set of analyses may be described as 'zero-sum'. If one party gains, the other one loses. If, by contrast, one views the dyslexia community as a complex, inter-dependent 'ecosystem', a much more positive view emerges. It becomes clear that there are solutions for the system as a whole that are in a sense optimal for the system as a whole, solutions that are 'win-win', that is, all parties gain and none lose. In this article I develop this concept of the 'dyslexia ecosystem', and outline targets that would lead to progress for the ecosystem as a whole.</p
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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