1,721,035 research outputs found
Validity of Interactive Learning Multimedia on Biology Learning Material of Coordination System for Grade XII Senior High School Students
No full textBiology learning is expected to be a mean to learn self, environment and advance development prospects in daily lives. Beside that, it can serve biological objects from molecules level to individual level, even to ecosystem level and life in universe. Therefore, it needs to optimize learning media to help students learn Biology besides the use of books or teachers’ explanation. Purpose of the research was to explain interactive multimedia validity, practicality and effectivity about Biology learning material for grade XI Senior High School students. This research was a developmental research by using Plomp design. The model is consisted of three phases, which are preliminary research phase, development or prototype phase, and assessment phase. Instruments of data collection were validity sheets, practicality sheet by teachers and students, observation sheets, and objective test. Techniques of data analysis were Kolmogrof Smirnov test to normality test, Levene test to homogeneity test and T-test to hypothesis test. The finding showed that multimedia got score of 81%, which is in very valid criteria. The result of teacher’s practicality test was 90.60% and students’ practicality test was 89.21%. It means multimedia is in very practical category. The result of multimedia effectivity test in cognitive, affective and psychomotor competences showed that the developed multimedia was in very effective criteria. In addition, students’ cognitive, affective and psychomotor competences used interactive multimedia were better than students’ competences which did not use interactive multimedi
The Validity of Assessment’s Instrument in Science Subject Based on Science Literacy for Junior High School
No full textThe study aimed to determine the validity of science-based science literacy subject evaluation tool for first semester junior high school students in grade IX had been conducted. This type of research is development research using the Plump model development. The validity of science-based science literacy subject evaluation tools is carried out with 2 types of validity namely logical validity and empirical validity. Logical validity is carried out by 5 experts who assess the validity of the questions developed. Based on logical validity it is known that science questions based on science literacy that has been developed have met valid criteria with an average validity of 88.98%. Empirical validity is determined by calculating the value of the validity of each item by using the product moment formula. As many as 60 scientific literacy-based items developed for each question have different values of item validity according to the type of problem. From the results of the validity of the items as a whole obtained a value of 67.67% and included in the valid criteria. Based on the second value of this validity (logical and empirical validity) it can be concluded that the questions developed are included in the valid criteria with a validity value of 78.33%
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
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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