Crowdsourcing civility: A natural experiment examining the effects of distributed moderation in online forums     

Cliff Lampe  Paul Zube  Jusil Lee  Chul Hyun Park  Erik Johnston 《Government Information Quarterly》2014

Participation in discussions about the public interest can be enhanced by technology, but can also create an environment in which participants are overwhelmed by the quantity, quality, and diversity of information and arguments. Political participation is at a greater disadvantage than non-political activities in that participants from different parties already start out with established differences, which requires them to reach some form of common ground before progress can be made. Those seeking authentic deliberation are discouraged to participate when confronted with uncivil and inflammatory rhetoric. These issues are often exacerbated in online discussions, where lack of identity cues and low barriers to entry can lead to heightened incivility between participants, often labeled as “flaming” and “trolling”. This paper explores the extent to which moderator systems, tools online discussion forums use to manage contributions, can reduce information overload and encourage civil conversations in virtual discussion spaces. Using the popular website Slashdot as an example of sound moderation in a public discourse setting, we found that users move toward consensus about which and how comments deserve to be moderated. Using these findings, we explore how transferable these systems are for participation in public matters specifically to the unique attributes of political discussion. Slashdot's political forum provides a comparison group that allowed us to find quantitative and qualitative differences in political posting, comments, and moderation. Our results show that large scale, civil participation is possible with a distributed moderation system that enables regularly lively debates to be conducted positively because the system provides tools for people to enforce norms of civility.  相似文献   

Understanding the lived experiences of novice out-of-field teachers in relation to school leadership practices     

Anna Du Plessis  Annemaree Carroll  Robyn M. Gillies 《Asia-Pacific Journal of Teacher Education》2015,43(1):4-21

The lived experiences of novice teachers in out-of-field positions influence future career decisions and impact on their journey towards being competent and experienced practitioners, conversely their “life-world” is often misunderstood. The purpose of the study reported in this article is to investigate the lived experiences of these teachers, how principals’ understanding and leadership styles influence the lived experiences of novice out-of-field teachers, and what these lived experiences mean for school leaders. The article highlights perceptions of school leaders and novice out-of-field teachers about out-of-field teaching. It argues that the strategies implemented by school leaders based on their understanding of novice out-of-field teachers’ lived experience greatly influence the development of these teachers. It draws on Gadamer’s theories to investigate the lived experiences and perceptions of four principals and four novice out-of-field teachers through the different lenses of these participants. It concludes with a discussion on the interrelationships between school leaders’ understanding, novice teachers’ lived experience and what it means for the teaching environment. Participants’ interpretation of specific lived experiences connected to out-of-field teaching shapes meaning in their attempt to understand and to “belong,” for example, confidence issues, self-esteem concerns, and disconnectedness. The investigation of these units of meaning provides an in-depth understanding of the interrelationship between leadership and the lived experiences of novice out-of-field teachers.  相似文献   

The effects of scientific representations on primary students’ development of scientific discourse and conceptual understandings during cooperative contemporary inquiry-science     

Robyn M. Gillies  Kim Nichols  Asaduzzaman Khan 《Cambridge Journal of Education》2015,45(4):427-449

Teaching students to use and interpret representations in science is critically important if they are to become scientifically literate and learn how to communicate their understandings and learning in science. This study involved 248 students (119 boys and 129 girls) from 26 grade 6 teachers’ classes in nine primary schools in Brisbane, Australia. Teachers were randomly allocated by school to one of three conditions: the contemporary science + representations condition (Experimental^a), the contemporary condition (Experimental^b), or the comparison condition as they participated in an eight-week inquiry-science unit on Natural Disasters. Data on students’ discourse were collected at two time points during the implementation of the unit and data on the concept maps were collected pre- and post-intervention while data on the reasoning and problem-solving (RP-S) task were collected following the intervention. The results show that when students participate in an inquiry-based science unit that is augmented with a variety of multimedia resources presenting a range of current contemporary events (Experimental^a and Experimental^b conditions), they demonstrate significantly more social language and basic scientific language and marked increases in moderate scientific language than their peers in the comparison condition. Interestingly, although there were no significant differences on the Personal Concept Map scores between the conditions at Times 1 and 2, the students’ scores in all conditions improved decidedly across time. It appears that as the children had more time to engage with the material, participate in cooperative peer discussions, and receive encouragement from their teachers to provide elaborated feedback to each other, their conceptual understandings of earthquakes were enhanced. However, although the children in the experimental conditions demonstrated significantly more social and scientific language than their peers in the comparison condition, these oral language skills did not transfer to the RP-S task, possibly because they may not have had enough time to consolidate their application in a novel context where they had to work independently.  相似文献   

Structural exclusion through school mathematics: using Bourdieu to understand mathematics as a social practice     

Robyn Jorgensen  Peter Gates  Vanessa Roper 《Educational Studies in Mathematics》2014,85(2):221-239

Research on learner errors in mathematics education is beginning to focus on how teachers can learn to identify and engage with the reasoning behind these errors. Research on professional learning communities is beginning to show that they present powerful opportunities for on-going teacher collaboration and learning. In this paper, I bring the two areas of research together. Drawing on data from one professional learning community in the Data Informed Practice Improvement Project, I show how teachers in this community came to understand key concepts about learner errors and shifted their ways of talking about learner errors. I identify three important shifts that the teachers made in their learning about learner errors: from identifying to interpreting errors; from interpreting to engaging errors; and from focusing on learner errors to focusing on their own knowledge. I argue that these three shifts suggest a deepening of teachers’ thinking in relation to learner errors.  相似文献   

The road to self-assessment: exemplar marking before peer review develops first-year students’ capacity to judge the quality of a scientific report     

Robyn Yucel  Fiona L. Bird  Jodie Young  Tania Blanksby 《Assessment & Evaluation in Higher Education》2014,39(8):971-986

Lack of clarity about assessment criteria and standards is a source of anxiety for many first-year university students. The Developing Understanding of Assessment for Learning (DUAL) programme was designed as a staged approach to gradually familiarise students with expectations, and to provide opportunities for the development of the skills required to successfully complete assessment tasks. This paper investigated the students’ perceptions of the first two components of the DUAL programme, which assist first-year biology students to engage with stated assessment criteria and standards in order to develop their capacity to make judgements about scientific report exemplars, their peers’ scientific reports and ultimately their own. The study found strong evidence (96% of responses) that the marking and discussion of exemplar reports with peers and demonstrators clarified expectations of scientific report writing. A key feature of this element of DUAL was the opportunity for structured discussion about assessment criteria and standards between peers and markers (demonstrators). During these discussions, students can clarify explicit statements and develop a tacit knowledge base to enhance their ability to judge the quality of others’ work and their own. The peer review exercise (the second element of DUAL) was not rated as highly, with 65% of students finding the process helpful for improving their report. The negative reactions by a sizeable minority of students highlight the need to clearly communicate the expectations and benefits of peer review, with a focus on how the process of giving feedback to peers might benefit a student as much as receiving feedback on their own report.  相似文献   

Identification of Core Competencies for an Undergraduate Food Safety Curriculum Using a Modified Delphi Approach     

Lynette M. Johnston  Martin Wiedmann  Alicia Orta‐Ramirez  Haley F. Oliver  Kendra K. Nightingale  Christina M. Moore  Clinton D. Stevenson  Lee‐Ann Jaykus 《Journal of Food Science Education》2014,13(1):12-21

Identification of core competencies for undergraduates in food safety is critical to assure courses and curricula are appropriate in maintaining a well‐qualified food safety workforce. The purpose of this study was to identify and refine core competencies relevant to postsecondary food safety education using a modified Delphi method. Twenty‐nine experts representing food safety professionals in academia, government, and industry were given 2 rounds of questionnaires that specified initial food safety competencies, core domains, and subdomains. Competencies were defined as a set of skills, knowledge, and abilities that correlate to success of a trainee. The framework for which competencies were classified consisted of (1) core domains, defined as broad food safety subjects; and (2) subdomains, or more specific food safety subjects. The expert panel used a 5‐point Likert scale with an acceptance criterion, or consensus, of 75%, with a rating of “4” or greater. After 2 rounds of questionnaires and revisions from the expert panel, 5 core domains were established: (1) Food Production, Manufacturing, Retail, and Consumer; (2) Foodborne Hazards; (3) Public Health; (4) Legislation and Policy; and (5) Communication and Education. Specific responses from the experts highlighted areas in which further curriculum revision would be beneficial. This study provides a framework for the development of a vetted, standardized undergraduate food safety curriculum. The Delphi method, with its inclusion of professionals representing various sectors of food safety, provided relevant perspectives for curriculum design, and also allowed participants the opportunity to contribute to the education of future food safety professionals.  相似文献   

A tool for capacity building: teacher professional learning about teaching writing     

Jenny Johnston  Stephanie George 《Teacher Development》2018,22(5):685-702

This paper reports on qualitative research from an Australian, K-6, faith-based school about teachers’ experience of a job-embedded professional learning initiative (the Whole-School Benchmarking of Writing, WSBoW) that was designed to improve teachers’ capacity to apply data-driven decision-making to achieve improvements in student learning. Teacher interviews provided the data about experiences and influences on teching practice. The findings demonstrated that the professional learning initiative provided teachers with a supportive pedagogical tool for focusing their teaching practices on improving student learning. A research based evaluative framework was used as a heuristic to analyse the change initiative. This study used the framework and employed a social constructivist and sociocultural epistemology that recognised the importance of leadership and school context in the development of a culture focused on collaborative communities of practice and data-driven teacher decision-making. The study has significance for leaders, schools and systems that engage teachers in professional capacity building.  相似文献   

The Impact of Three-Dimensional Printed Anatomical Models on First-Year Student Engagement in a Block Mode Delivery     

Nicholas Tripodi  Kate Kelly  Maja Husaric  Rebecca Wospil  Michael Fleischmann  Susan Johnston  Katherine Harkin 《Anatomical sciences education》2020,13(6):769-777

Student engagement is known to have several positive effects on learning outcomes and can impact a student's university experience. High levels of engagement in content-heavy subjects can be difficult to attain. Due to a major institutional restructure, the anatomy prosection laboratory time per subject was dramatically reduced. In response, the authors set out to redesign their anatomy units with a focus on engaging the learning activities that would increase time-on-task both within and outside of the classroom. One of these curriculum changes was the implementation of a suite of anatomy learning activities centered on sets of three-dimensional printed upper limb skeleton models. A two-part mixed-method sequential exploratory design was used to evaluate these activities. Part one was a questionnaire that evaluated the students' engagement with and perceptions of the models. Part two involved focus groups interviews, which were an extension of the survey questions in part one. The results of the study indicated that the majority of students found the models to be an engaging resource that helped improve their study habits. As a result, students strongly felt that the use of the models inspired greater academic confidence and overall better performance in their assessments. Overall, the models were an effective way of increasing the engagement and deep learning, and reinforced previous findings from the medical education research. Future research should investigate the effects of these models on student's grades within osteopathy and other allied health courses.  相似文献   

Implanting a Discipline: The Academic Trajectory of Nuclear Engineering in the USA and UK     

Sean F. Johnston 《Minerva》2009,47(1):51-73

The nuclear engineer emerged as a new form of recognised technical professional between 1940 and the early 1960s as nuclear fission, the chain reaction and their applications were explored. The institutionalization of nuclear engineering—channelled into new national laboratories and corporate design offices during the decade after the war, and hurried into academic venues thereafter—proved unusually dependent on government definition and support. This paper contrasts the distinct histories of the new discipline in the USA and UK (and, more briefly, Canada). In the segregated and influential environments of institutional laboratories and factories, historical actors such as physicist Walter Zinn in the USA and industrial chemist Christopher Hinton in the UK proved influential in shaping the roles and perceptions of nuclear specialists. More broadly, I argue that the State-managed implantation of the new subject within further and higher education curricula was shaped strongly by distinct political and economic contexts in which secrecy, postwar prestige and differing industrial cultures were decisive factors.

Sean F. JohnstonEmail:

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A new type of contact halftone screen     

J.A.C. Yule  F.B. Johnston  A. Murray 《Journal of The Franklin Institute》1942,234(6):567-582

The development of an improved type of contact screen is described. By using a transparent dye for the screen image, and also in some cases for a continuous-tone negative for use with the screen, contrast control is obtained with color filters, and increased resolution of detail results. Improved tone reproduction is incorporated in the gradation of the screen dots. The greatest improvement in quality is obtained in deep-etch offset printing, where it is convenient to make a highlight screen positive from a magenta negative by contact through an orange-red contact screen.  相似文献