1,720,958 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Get PDFWe 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
Die ontwikkeling van die ESSI-lees- en speltoets
Get PDFThe ESSI reading and spelling test (Afrikaans and English) was developed to replace the well-known UCT reading and spelling test standardized in 1944. This measuring instrument was developed in four phases. This article deals with the development work performed during the first three phases. During phase 1, support teachers were involved so that provisional vocabulary lists could be drawn up. Next, these vocabulary lists were presented to experts in the field of support teaching for their comments, after which they were finalised. Phase 2 was used to perform item analyses on the vocabulary lists, with assistance of item-response theory (IRT). On the basis of these findings, the final tests (vocabulary lists) were drawn up. During phase 3, tables of norms were drawn up. The tables of norms were made available per term so that the test could be taken throughout the year. To promote the utility value of the tests, screening tests were also drawn up, and the words included in the vocabulary lists could also be used to perform assessments of reading and spelling errors. Only registered psychologists and support teachers are allowed to administer the test and interpret test results.
(South African Journal of Education: 2002 22(2): 144-148
Psigometriese eienskappe van die ESSI-lees- en speltoets
Get PDFIn drawing up the ESSI reading and spelling test, four phases were followed. In an earlier article, the development work that took place during the first three phases was discussed. This article focuses on the last phase during which the psychometric characteristics of the ESSI reading and spelling test were investigated. Firstly, the skewedness of the test scores on all the tests (vocabulary lists) was investigated. The results showed that there was a reasonable measure of symmetrical distribution of scores on all the Afrikaans and the English tests. The kurtosis of the scores was also investigated, and with some exceptions, it was clear that the scores had a normal distribution. Attention was also devoted to the standard error of measurement for the tests. Not one of the standard errors of measurement values for the tests was larger than 2. Information on the reliabilities of the tests is also included. Various reliability indices were calculated and all of them exhibited high levels of reliability. Concerning the validity of the tests, attention was devoted to content and criterion-related validity of the tests. It was possible to ensure that the requirements of content validity were met by requesting experienced persons to identify the words for the test. Information on the predictive validity of the tests indicated that all the tests have sound predictive validity.
(South African Journal of Education: 2002 22(2): 149-153
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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