1,720,975 research outputs found
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
PENGEMBANGAN TES DIAGNOSTIK PILIHAN GANDA DUA LAPIS BERBASIS PICTORIAL UNTUK MENGIDENTIFIKASI MISKONSEPSI SISWA PADA MATERI LARUTAN PENYANGGA
No full textPenelitian ini bertujuan untuk mengembangkan tes pilihan ganda dua lapis berbasis pictorial pada materi larutan penyangga yang memenuhi kriteria validitas isi dan reliabilitas. Subjek penelitian ini terdiri dari 144 siswa kelas XI Sekolah Menengah Atas yang telah mempelajari materi larutan penyangga. Penelitian ini menggunakan metode pengembangan dan validasi yang terdiri dari pengembangan tes, uji validitas dan reliabilitas tes, pembuatan kunci determinasi serta penggunaan tes dan analisis hasil penggunaan tes. Pengembangan tes dilakukan dengan tahapan pertama menganalisis materi berdasarkan peta konsep. Langkah kedua adalah mencari prediksi miskonsepsi dengan bantuan soal essay. Langkah ketiga pembuatan soal larutan penyangga dua lapis. Lapisan pertama dari kajian literatur sedangkan lapis kedua berasal dari prediksi miskonsepsi hasil uji coba dengan soal essay. Pictorial digunakan hanya pada tahap pertama. Jumlah butir soal yang dikembangkan sebanyak 25 soal. Berdasarkan uji validitas isi menggunakan metode CVR, diperoleh 24 butir soal yang memenuhi kriteria validitas isi. Berdasarkan uji reliabilitas, diperoleh nilai Alpha Cronbach sebesar 0,827, artinya termasuk dalam kategori baik. Berdasarkan pertimbangan dipilih 14 soal untuk digunakan pada uji coba aplikasi dengan nilai Alpha Cronbach sebesar 0,755, artinya termasuk dalam kategori dapat diterima. Berdasarkan analisis jawaban siswa yang didasarkan pada kunci determinasi diperoleh miskonsepsi yang mempunyai persentase terbesar pada setiap konsepnya, yaitu komponen penyusun larutan penyangga itu salah satunya adalah asam lemah, asam lemah adalah asam yang memiliki banyak ion H+. Hasil analisis data menunjukkan bahwa tes berbasis pictorial dapat mengidentifikasi miskonsepsi lebih banyak dibandingkan tes non-pictorial.
Kata kunci : Miskonsepsi, Tes Pictorial, Tes Diagnostik Dua Lapis, Larutan Penyangga
This research aims to develop a multiple-choice test on a two-layer-based pictorial material buffer solution that meets the criteria of content validity and reliability. Subjects of this study consisted of 144 students of class XI High School who has studied the material buffer solution. This study uses the method development and validation consisting of test development, test the validity and reliability of the test, manufacture and use of key determination tests and analysis of the results of the use of the test. Development of tests conducted in stages, first to analyze the material based on concept maps. The second step is to look for the prediction of misconceptions with the help of essay questions. The third step of making about two layers of buffer solution. The first layer of the literature review, while the second tier comes from misconceptions prediction test results with essay questions. Pictorial used only in the first stage. Number of items developed as many as 25 questions. Based on the content validity of the test method CVR, obtained 24 items that meet the criteria of content validity. Based on test reliability, the Cronbach Alpha value of 0.827, meaning included in both categories. Based on consideration of selected 14 questions to be used in testing the application with Cronbach Alpha value of 0.755, meaning included in the category of unacceptable. Based on the analysis of students' answers were based on a determination key misconceptions that have obtained the greatest percentage on each concept, namely the composition of the buffer solution that one of them is a weak acid, a weak acid is an acid that has a lot of H+ ions. The result showed that the pictorial-based test can identify misconceptions more than non-pictorial tests.
Keywords: Misconceptions, Pictorial Test, Two-Tier Diagnostic Tests, Buffer Solutio
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
Bibliometric Methods: Analysis of the Development Potential of Ethnoscience-based Science Literacy Modules in Chemistry Learning
Full text linkThere still needs to be more research on the potential analysis of the development of ethnoscience-based science literacy modules in chemistry learning using bibliometric tools. Ethnoscience-based science literacy modules still need to be found and used in chemistry learning. This research aims to analyze the novelty and effectiveness of ethnoscience-based science literacy modules in chemistry learning. The subject of this research is a science literacy module based on ethnoscience in chemistry learning. In this study, the researchers also analyzed articles that have been filtered based on topics based on local wisdom-based science literacy modules. The analysis contains several components: title, year, doi, author, method, outcome, and conclusion. The research uses an approach that uses the method of Systematic Literature Network Analysis (SLNA) assisted by bibliometric tools as the medium used in analyzing the article. The data obtained was many articles from the SCOPUS database, which had previously defined some criteria for capturing it. The criteria are related to the year of publication, keyword, and language selection. The application used in this study is the VOS Viewers application. The results show that research related to ethnoscience-based science literacy modules in chemistry learning is still highly feasible, given the numerous constraints in some schools. However, it should be noted that ethnoscience-based science literacy cannot replace scientific literacy globally because of the global literacy capabilities needed in everyday life
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Development of a Pictorial-Based Five-Tier Multiple Choice Diagnostic Test to Identify Misconceptions in the Material of Colligative Properties of Solutions
Full text linkChemical concepts that are difficult for students to understand will lead to misconceptions or misunderstandings. There are still few chemistry teachers who develop multi-level diagnostic tests to identify misconceptions in students. This study aspires to create an innovative, pictorial-based, five-tier multiple-choice diagnostic test that will empower educators to uncover and address students\u27 misconceptions about the colligative properties of solutions. This research uses the Research and Development (R&D) method with the Tessmer model. The subject of this study is high school/MA students. The instruments used are five-tier diagnostic tests and evaluation expert validation sheets. Through the content validity test using the Content Validity Ratio (CVR), 25 items emerged as strong and valid criteria. The reliability test showcased a remarkable Cronbach\u27s Alpha value of 0.90, affirming that the developed test is a credible tool ready for impactful use. This can identify misunderstandings of high school students on the material of the colligative nature of the solution because the image in the question can provide a representation of the question asked
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