Breaking the filter bubble: democracy and design     

Engin Bozdag  Jeroen van den Hoven 《Ethics and Information Technology》2015,17(4):249-265

It has been argued that the Internet and social media increase the number of available viewpoints, perspectives, ideas and opinions available, leading to a very diverse pool of information. However, critics have argued that algorithms used by search engines, social networking platforms and other large online intermediaries actually decrease information diversity by forming so-called “filter bubbles”. This may form a serious threat to our democracies. In response to this threat others have developed algorithms and digital tools to combat filter bubbles. This paper first provides examples of different software designs that try to break filter bubbles. Secondly, we show how norms required by two democracy models dominate the tools that are developed to fight the filter bubbles, while norms of other models are completely missing in the tools. The paper in conclusion argues that democracy itself is a contested concept and points to a variety of norms. Designers of diversity enhancing tools must thus be exposed to diverse conceptions of democracy.  相似文献   

Optimal search strategies for identifying moderators and predictors of treatment effects in PubMed     

Marcia Tummers  Ralph van Hoorn  Charlotte Levering  Andrew Booth  Gert Jan van der Wilt  Wietske Kievit 《Health information and libraries journal》2019,36(4):318-340

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Differential Susceptibility in Early Literacy Instruction Through Computer Games: The Role of the Dopamine D4 Receptor Gene (DRD4)     

Cornelia A. T. Kegel  Adriana G. Bus  Marinus H. van IJzendoorn 《Mind, Brain, and Education》2011,5(2):71-78

Not every child seems equally susceptible to the same parental, educational, or environmental influences even if cognitive level is similar. This study is the first randomized controlled trial to apply the differential susceptibility paradigm to education in relation to children's genotype and early literacy skills. A randomized pretest–posttest control group design was used to examine the effects of the Intelligent Tutoring System Living Letters. Two intervention groups were created, 1 receiving feedback and 1 completing the program without feedback, and 1 control group. Carriers of the long variant of the dopamine D4 receptor gene (DRD4 7‐repeat) profited most from the computer program with positive feedback, whereas they performed at the lowest level of early literacy skills in the absence of such feedback. Our findings suggest that behind modest overall educational intervention effects a strong effect on a subgroup of susceptible children may be hidden.  相似文献   

David F. Treagust: congenial soul, science educator, and international research leader     

Kenneth Tobin  Leonie Rennie  Grady Venville  Hye-Eun Chu  Peter Fensham  James Gallagher  Reinders Duit  Wolfgang Graeber  Ed van den Berg  Brian Hand  Stephen Ritchie  Justin Dillon 《Cultural Studies of Science Education》2011,6(3):783-793

For almost a half century David F. Treagust has been an exemplary science educator who has contributed through his dedication and commitments to students, curriculum development and collaboration with teachers, and cutting edge research in science education that has impacted the field globally, nationally and locally. A hallmark of his outstanding career is his collaborative style that inspires others to produce their best work.  相似文献   

Innovative learning and developments in motivation and achievement in upper primary school     

Lisette Hornstra  Ineke van der Veen  Thea Peetsma  Monique Volman 《教育心理学》2015,35(5):598-633

Although previous research has shown the potential of innovative learning for enhancing motivation and learning outcomes, further understanding is needed on which aspects of IL are most effective and whether these are equally motivating for different types of students. The present study investigated how developments in students’ motivation and achievement related to different aspects of innovative learning (i.e. authentic learning, collaborative learning and focusing on self-regulation), and whether these relations varied by students’ background characteristics. A sample of 722 grade five students from the Netherlands (average age 11?years old) and their teachers completed questionnaires during four measurements from grade five to grade six. Autoregression analyses were performed. Results showed both positive and negative relations between IL and developments in students’ motivation and achievement, indicating that IL is not a unidimensional construct. Furthermore, the effectiveness of different aspects of IL depended on students’ gender, and social and ethnic background characteristics.  相似文献   

The development of student teachers’ research knowledge,beliefs and attitude     

Wietse van der Linden  Anouke Bakx  Anje Ros  Douwe Beijaard  Linda van den Bergh 《师资教育杂志》2015,41(1):4-18

This study reports on the development of second-year student teachers’ knowledge of research, and the changes in their beliefs and attitude regarding research during an introductory course at an institute for primary teacher education. Questionnaires and concept maps were administered before and after the course. The results showed that student teachers’ knowledge about research grew during the introductory course and that their positive beliefs about research became more positive, while their negative beliefs about research decreased. A positive change was found concerning the attractiveness of research to student teachers. Furthermore, student teachers’ self-efficacy regarding research appeared related to their beliefs and attitude: the more the student teachers were convinced of their abilities to conduct and use the results of research after the course, the more positive their beliefs and their attitude regarding research were. This study provides guidelines for institutes for teacher education on integrating research activities into their curricula, so that their student teachers develop research knowledge and positive beliefs and attitudes towards research.  相似文献   

Testing After Worked Example Study Does Not Enhance Delayed Problem-Solving Performance Compared to Restudy     

Tamara van Gog  Liesbeth Kester  Kim Dirkx  Vincent Hoogerheide  Joris Boerboom  Peter P. J. L. Verkoeijen 《Educational Psychology Review》2015,27(2):265-289

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Phonological Processing and Word Reading in Typically Developing and Reading Disabled Children: Severity Matters     

Barry J. A. de Groot  Kees P. van den Bos  Alexander E. M. G. Minnaert  Bieuwe F. van der Meulen 《Scientific Studies of Reading》2015,19(2):166-181

In this study word reading (WR) fluency was used to dichotomously classify 1,598 Dutch children at different cutoffs, indicating (very) poor or (very) good reading performance. Analysis of variance and receiver operating characteristics were used to investigate the effects of rapid automatized naming (RAN) and phonemic awareness (PA) in predicting group membership. The highest predictive values were found for the combination of RAN and PA, particularly for the poorest readers. Furthermore, results indicate that with the severity of impairment, WR is more dominated by deficient PA, which is interpreted as an enduring problem with sublexical processing. Another main result is that with the increase of reading skill, the contribution of PA diminishes, whereas the contribution of RAN remains fairly constant for the whole reading fluency continuum. These results warrant the conclusion that whereas PA hallmarks reading disability, RAN appears to be the default predictor for above-average or excellent reading proficiency.  相似文献   

Developmental Changes in the Relations Between RAN,Phonological Awareness,and Reading in Spanish Children     

Cristina Rodríguez  Madelon van den Boer  Juan E. Jiménez  Peter F. de Jong 《Scientific Studies of Reading》2015,19(4):273-288

We examined the developmental relations of phonological awareness (PA) and rapid automatized naming (RAN) with reading in a cross-sectional study with 874 Spanish children from Grades 2 to 6. Our main prediction was that the RAN–reading relationship would decrease due to a gradual change in reading strategy, from serial decoding to sight word reading. Therefore, in contrast to most previous studies, we used discrete reading tasks. Serial RAN tasks for objects, colors, digits, and letters were included. First, we examined whether the RAN tasks loaded on the same constructs across time. An alphanumeric and a nonalphanumeric factor were identified, which were invariant over time. In subsequent multigroup structural equation models we found that the PA–reading relationship was low but slightly increased in the higher grades. As predicted, the RAN–reading relationship decreased for words, whereas the relationship remained stable for pseudowords.  相似文献   

Comparing student and expert-based tagging of recorded lectures     

Pierre Gorissen  Jan van Bruggen  Wim Jochems 《Education and Information Technologies》2015,20(1):161-181

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