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201.
Yvonne D. van Leeuwen Marjan C. Pollemans Herman Düsman Cees P.M. van der Vleuten Richard P.T.M. Grol 《Educational Research and Evaluation》2013,19(3):276-286
ABSTRACT The use of written knowledge tests in (medical) education is widespread. Only few of them are thoroughly validated. Usually, validity studies are restricted to establishing ‘face‐validity’, the apparent similarity between test‐material and real life problems. Reliability studies are usually restricted to estimation of the coefficient alpha, representing the reproducibility of rank‐ordering of students at repeated test administration. This study addresses reliability from a broader perspective, using generalizability theory. The approach enables faculty to gain insight into the suitability of the test to serve different educational goals. A written knowledge test was examined, applied in postgraduate training for general practice in the Netherlands. Test‐reliability was approached from different perspectives: the norm‐oriented perspective, aiming at rank‐ordering (groups of) students, the domain‐oriented perspective, aiming at determining the absolute score level of (groups of) students and the decision‐oriented perspective, aiming at taking pass‐fail decisions. Reliability estimates differed for the different perspectives. The implication of the results and feasible options to increase reliability are discussed. 相似文献
202.
We used both student interviews and diagnostic testing to reveal students’ misconceptions about number representations in computing systems. This article reveals that students who have passed an undergraduate level computer organization course still possess surprising misconceptions about positional notations, two's complement representation, and overflow. Contrary to common opinion, these misconceptions are widespread and reveal the need for instruction that specifically targets these misconceptions. In addition, these misconceptions will serve as the basis for the creation of a standard assessment tool called the digital logic concept inventory. This concept inventory will provide a rigorous and quantitative metric to assess the effectiveness of new teaching methods. 相似文献
203.
Dana L. Zeidler Benjamin C. Herman Mitch Ruzek Anne Linder Shu‐Sheng Lin 《科学教学研究杂志》2013,50(3):251-283
The purpose of this investigation was to examine, from a cross‐cultural perspective, students' epistemological patterns of reasoning about socioscientific issues (SSI), and to identify potential interactions of cultural and scientific identity. Mediating factors associated with students' argumentation and discourse about SSI, as well as the public's understanding of science, has been identified as an important area of investigation in the field of science education. This mixed‐methods design included over 300 students from Jamaica, South Africa, Sweden, Taiwan, and the United States. Students responded to instruments designed to assess their epistemological conceptualizations and justifications related to distributive justice, allocation of scarce medical resources, and epistemological beliefs over five dimensions related to scientific knowledge. Four iterations of a coding scheme produced over 97% inter‐rater agreement for four independent coders. Results indicate there is a consistent trend toward epistemological congruity across cultures within inductively derived themes of: (1) Fairness; (2) Pragmatism; (3) Emotive Reasoning; (4) Utility; and (5) Theological Issues. Moreover, there were no discernable differences in terms of how students from these countries presented their beliefs on the sub‐categories of each of the five major categories. It appears that students displayed a high degree of congruence with respect to how they frame their reasoning on this SSI as well as their justifications for their epistemological beliefs. There were statistically significant differences regarding the ability to raise scientifically relevant questions among countries. Commonalities as well as distinguishing characteristics in epistemological orientations are compared and contrasted and connections to a model of socioscientific reasoning with implications for research and pedagogy are discussed. © 2013 Wiley Periodicals, Inc. J Res Sci Teach 50:251–283, 2013 相似文献
204.
Christie Fraser Jayme Herman Susan Elgie 《Educational research; a review for teachers and all concerned with progress in education》2013,55(4):390-409
Background: Often, a principal’s responsibilities include making decisions about the appropriateness of educational programmes to adopt in their school. Recommendations about programmes can be conflicting; so, a principal may need to search for evidence to inform their decision.Purpose: The purpose of this small-scale study was to clarify how school leaders search for, and use, evidence to inform programme adoption. We sought to answer three research questions: (1) how do principals search for evidence, (2) how do they use common sources and (3) what sources do they consider most useful?Sample: Twelve elementary school principals or vice-principals in Ontario, Canada participated in the study.Design and methods: In telephone interviews, the participants described how they would respond to a fictional decision-making scenario and rated different sources of evidence. Responses were analysed in depth, using a mixed-method approach, which involved coding principals’ interview responses for themes and conducting a dual scaling analysis of their ratings of the usefulness of possible sources.Results: Principals report valuing formal sources of evidence such as reports and articles. However, in practise, findings indicated that they would turn to people first.Conclusions: School leaders prefer curated evidence from local educators to inform their decisions about the appropriateness of educational programmes for potential adoption. 相似文献
205.
Blanca Rodríguez‐Bravo David Nicholas Eti Herman Chérifa Boukacem‐Zeghmouri Anthony Watkinson Jie Xu Abdullah Abrizah Marzena Świgoń 《Learned Publishing》2017,30(4):269-277
This paper presents selected findings from the first year of a 3‐year longitudinal study of early career researchers (ECRs), which sought to ascertain current and changing habits in scholarly communication. Specifically, the aims of the paper are to show: (1) how much experience and knowledge ECRs had of peer review – both as authors and as reviewers; (2) what they felt the benefits were and what suggestions they had for improvement; (3) what they thought of open peer review (OPR); and (4) who they felt should organize peer review. Data were obtained from 116 science and social science ECRs, most of whom had published and were subject to in‐depth interviews conducted face‐to‐face, via Skype, or over the telephone. An extensive literature review was also conducted to provide a context and supplementary data for the findings. The main findings were that: (1) most ECRS are well informed about peer review and generally like the experience, largely because of the learning experiences obtained; (2) they like blind double‐peer review, but would like some improvements, especially with regards to reviewer quality; (3) most are uncomfortable with the idea of OPR; and (4) most would like publishers to continue organizing peer review because of their perceived independence. 相似文献
206.
ResearchGate (RG) is a scholarly social network that possesses an impressive array of reputational metrics and has the potential to supplant publishers as the prime deliverer of scholarly reputation. It possesses 10 reputational mechanisms, and these are the subject of an evaluation employing desk research, expert evaluation, and an analysis of 400 RG members. The main conclusions are: RG (1) provides a rich, albeit confusing, amount of reputational data; (2) struggles with the deployment of alternative, engagement metrics, such as Q&A and follower data, which can lead to reputational anomalies; (3) employs usage data in an especially effective manner; and (4) leads the field in the way it engages with the scholar. 相似文献
207.
Jia Wang Jonathan D. Schweig Joan L. Herman 《Journal of Education for Students Placed at Risk》2017,22(2):77-99
Magnet schools are one of the largest sectors of choice schools in the United States. In this study, we explored the heterogeneity in magnet-school effects on student achievement by examining 24 magnet schools, funded under the Magnet Schools Assistance Program (MSAP), in 5 school districts across 4 states. The magnet effects were synthesized across schools with a multilevel variance-known analysis, using the school-level effects estimated with a propensity score matched regression approach. Results indicated significant variation in magnet effects on student outcomes, with some magnet schools showing positive effects, and others showing negative effects. This variation can be explained by program implementation and magnet support. 相似文献
208.
Herman G. Weller 《科学教学研究杂志》1995,32(3):271-290
This is a report on the investigation of a microcomputer-based system for the diagnosis and remediation of three Aristotelian alternative conceptions of force and motion held by eighth-grade physical science students. Diagnosis and posttesting were done with computer-displayed, graphics-based, multiple-choice questions. The two remediation simulations were designed to present scientific idealizations and to be perceived by the student as anomalous to the three alternative conceptions. Structured interviews were employed at several points during the study to obtain indications of the conceptions of force and motion of students with different achievement rankings, as well as to determine the students' reactions to the computer pretest questions or the simulations. A student's possession of alternative conceptions was unrelated to whether the student was a strong or weak learner of science. Students who were currently studying dynamics in their classes exhibited a very different pattern of nonscientific answers on the computer diagnostic test than did students who had completed that topic. The completed students who were selected for possession of alternative conceptions were facilitated by the computer simulations in altering their naive conceptions to a significant degree. 相似文献
209.
210.
ABSTRACTInternational doctoral students’ sojourn encompasses three transitional processes: to the new country, to the university and to a new academic identity as a researcher in a specific discipline. This article examines the role of social networks in facilitating these transitions for international doctoral students at one South African university. It is based on qualitative interviews conducted with 23 international PhD students representing eight different disciplines and various countries in Africa. The findings suggest that students are involved in a number of social networks, which all, apart from the academic network, exclude local students. This close-knit co-national network, while providing international PhD students with a well documented survival mechanism, may hinder their international experiences and limit the acquisition of the inter-cultural skills necessary for global citizenship in the twenty-first century. The findings also indicated that family networks back home played a role in instilling worries and doubts among students related to xenophobic attacks against foreigners. 相似文献