Posthumanism and educational research     

Stefan Herbrechter 《Educational Philosophy and Theory》2017,49(11):1125-1127

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Can typical game features have unintended consequences? A study of players’ learning and reactions to challenge and failure in an educational programming game     

Catherine C. Chase  Laura J. Malkiewich  Alison Lee  Stefan Slater  Ahram Choi  Chenmu Xing 《British journal of educational technology : journal of the Council for Educational Technology》2021,52(1):57-74

It is difficult to motivate learners to seek out and persist at challenging learning tasks where failure is likely. However, in game environments, people seem highly motivated to engage with challenges and respond productively to failure. Many typical game features purportedly enhance intrinsic motivation and self-efficacy, which should improve students’ reactions to challenge and failure, which should in turn enhance learning. An experimental study with early middle school students tested these assumptions by comparing a “Full” version of a typical, commercial programming game to a “Minimal” version of the same game where common game features such as narrative, performance metrics, high-quality graphics, and sound were removed. In contrast to our hypotheses, players of the Full Game were less likely to choose coding challenges, were less tolerant of coding failures and gained less coding knowledge. Intrinsic motivation and self-efficacy did not differ between conditions. Correlational analyses showed that failure tolerance and challenge seeking may critically affect learning from educational games. The current study offers an existence proof that some common game features can hinder players' failure tolerance, challenge-seeking and learning, in certain game contexts. Future research should isolate the effects of individual game features, test generalizability and explore which contextual variables influence the findings.  相似文献   

Adaptive progressive download based on the MPEG-4 file format   总被引：1，自引：0，他引：1  

FRBER Nikolaus  DHLA Stefan  ISSING Jochen Multimedia Transport  Dept. Audio  Fraunhofer Institute for Integrated Circuits IIS  Erlangen  Germany 《浙江大学学报(A卷英文版)》2006,7(Z1)

In this paper we describe how progressive download and adaptive streaming can be combined into a simple and efficient streaming framework. Based on the MPEG-4 file format (MP4) we use HTTP for transport and argue that these two components are sufficient for specifying an open streaming architecture. The client selects appropriate chunks from the MP4 file to be transferred based on (1) the header information (i.e. the "moov" box) in the first part of the file and (2) his observation of network throughput. The framework is completely client driven which allows for better server scalability and reduces signalling overhead. We discuss architecture and implementation issues such as complexity, interoperability and scalability and compare to 3GPP PSS Re1-6 adaptive streaming when appropriate. Measurements from a simple MP4/HTTP streaming client are presented showing that appropriate chunks are selected such that increased reliability is achieved.  相似文献   

International large-scale assessments: what uses,what consequences?     

Stefan Johansson 《Educational research; a review for teachers and all concerned with progress in education》2016,58(2):139-148

Abstract

Background: International large-scale assessments (ILSAs) are a much-debated phenomenon in education. Increasingly, their outcomes attract considerable media attention and influence educational policies in many jurisdictions worldwide. The relevance, uses and consequences of these assessments are often the focus of research scrutiny. Whilst some argue that the assessment outcomes provide an effective basis for informed policy-making, critics claim that the use of international assessment data can result in a range of unintended consequences, such as the shaping and governing of school systems ‘by numbers’.

Purpose: This article explores and analyses the arguments about the uses and consequences of ILSAs. In particular, the discourse about the assessments’ consequential validity will be discussed and evaluated.

Sources of evidence: Literature relating to the uses and consequences of large-scale assessment was analysed, with a focus on research on the consequential aspects of validity.

Main argument: Much research suggests that ILSAs have unintended consequences that affect and influence educational policy. However, the influences on educational policy are complex and interwoven: for example, it is not clear-cut whether effects such as converging curricular are, necessarily, direct consequences of large-scale assessments. Further, it is suggested that a beneficial consequence of large-scale assessment is the infrastructure they provide for studies in the social sciences, although caution must be applied to causal claims, in particular because of the cross-sectional design of the assessments.

Conclusions: The considerable literature discussing the uses and consequences of large-scale assessments tends to point out potential negative aspects of the studies. However, it is also apparent that large-scale international assessments can be a valuable resource for studying global trends and evolving systems in education. Despite the extensive debates around large-scale assessment outcomes both in the media and in educational policy arenas, empirical educational research all too often appears underused in the discussion.  相似文献   

How University Websites’ Emphasis on Age Diversity Influences Prospective Students’ Perception of Person-Organization Fit and Student Recruitment     

Toni A. Ihme  Katharina Sonnenberg  Maria-Luisa Barbarino  Björn Fisseler  Stefan Stürmer 《Research in higher education》2016,57(8):1010-1030

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La methode de l'observation et les systemes d'enregistrement de l'interaction reciproque entre le maitre et l'eleve     

Stefan Barsanescu 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1972,18(1):460-466

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Impairments in learning due to motivational conflict: situation really matters     

Nina K. Brassler  Axel Grund  Kristina Hilckmann  Stefan Fries 《教育心理学》2016,36(7):1323-1336

Although many theories mention distractions by conflicting alternatives as a problem for self-regulation, motivational conflicts are rarely considered when explaining impairments in learning. In two studies, we investigate the assumption of motivational interference theory that students show different amounts of impairments in learning depending on the presence and motivational strength of conflicting alternatives. In Study 1 (N?=?221), the subjective value attributed to a respective alternative in a study–leisure conflict scenario partially accounted for differences in self-regulated learning while controlling for interindividual differences. Study 2 (N?=?112) demonstrated that this pattern applies to both when the respective alternatives refer to ‘liking to’ (want conflicts) and ‘having to’ (should conflicts) do something. Moreover, it is demonstrated that impairments due to motivational conflict are higher than impairments inherent in the studying activity itself (baseline). The results emphasise the importance of concurring action alternatives for explaining difficulties in self-regulated learning.  相似文献   

Kinematic differences of elite and high-performance tennis players in the cross court and down the line forehand   总被引：1，自引：0，他引：1  

Landlinger J  Lindinger SJ  Stöggl T  Wagner H  Müller E 《Sports biomechanics / International Society of Biomechanics in Sports》2010,9(4):280-295

This study identified and compared the full body kinematics of different skill levels in the forehand groundstroke when balls were hit cross court and down the line. Forty-three three-dimensional retroreflective marker trajectories of six elite and seven high-performance players were recorded using an eight-camera 400 Hz, Vicon motion analysis system. The six highest horizontal velocity forehands with reliable kinematics of all participants were analysed for each specific situation (a total of 156 analysed shots). Significant differences (p < 0.01) and large effect sizes were observed between elite and high-performance players in linear velocity of the shoulder (2.0 vs. 1.2 m/s), angular velocity of the pelvis (295 vs. 168 degrees/s), and angular velocity of the upper trunk (453 vs. 292 degrees/s) at impact. The elite group showed a tendency towards higher racquet velocities at impact (p < 0.05). No significant differences were found in angular displacement of the racquet, hip alignment, or shoulder alignment at the completion of the backswing; nor did angular displacement vary significantly at impact. Irrespective of the group, different shoulder, hip, and racquet angles were found at impact, depending on the situation. The results should assist coaches when striving to improve their players' forehand.  相似文献   

Under the radar: Industry entry by user entrepreneurs     

Stefan Haefliger  Peter Jäger 《Research Policy》2010,39(9):1198-1213

We inductively develop a model of the commercialization process for new products or services user entrepreneurs undertake when entering an industry while drawing on proprietary technology developed in another industry. Extending the growing field of user entrepreneurship, we identify a two-phase approach to industry entry by user entrepreneurs who start “under the radar” of incumbent firms, gain experience, attract a first potential customer base, and then, in a second phase, engage in commercialization. During this process, a community of fellow users is of major importance for the entrepreneur, serving as a knowledge pool for skills development and experimentation with different commercialization paths. We study a nascent group of firms founded by users of video games who became entrepreneurs on entering the animation industry by producing Machinima, a new film genre characterized by shooting film in video games. We explain how user entrepreneurs gain access to complementary assets (video games) for their new use (shooting film), how they deal with intellectual property issues when using other firms’ assets, and how user entrepreneurs combine domain knowledge about film production with their experience in video games and the art of Machinima. Our propositions hold implications for management and policy.  相似文献   

RECONSTRUCTING DEWEYAN PRAGMATISM: A REVIEW ESSAY     

Stefan Neubert 《Educational theory》2009,59(3):353-369

In this essay Stefan Neubert argues that John Dewey was a philosopher of reconstruction and that the best use we can make of him today is to reconstruct his work in and for our own contexts. Neubert distinguishes three necessary and equally important components of the overall project of reconstructing Deweyan pragmatism: first, to make strong and productive use of the tradition; second, to establish new theoretical links in order to develop new conceptual tools; and third, to reconsider implications of Deweyan pragmatism with a view toward new articulations of human life experience. Neubert then discusses three recent publications in the field of Dewey scholarship—Larry Hickman's Pragmatism as Post-Postmodernism , Inna Semetsky's Deleuze, Education and Becoming , and David Granger's John Dewey, Robert Pirsig, and the Art of Living —as examples illustrating the importance of each component. During the course of this discussion, Neubert develops some conclusions about the complexity inherent in the comprehensive task of reconstructing Dewey's philosophy today.  相似文献