Students’ educational use of Facebook groups     

Christian Dalsgaard 《Educational Media International》2016,53(4):261-273

The aim of the article is to explore educational use of student-managed Facebook groups in upper secondary education (in Denmark). Much research on educational potentials of Facebook has studied groups managed by teachers. However, there is a lack of in-depth research on Facebook groups managed by students and without participation from teachers. As this study shows, students’ use of student-managed groups differs from their use of teacher-managed tools such as learning management systems (LMSs). The article presents an empirical study based partly on a content analysis of 3139 posts and 15,018 replies within five Facebook groups, and partly on a questionnaire answered by 1463 students and 148 teachers. The results of the study show that whereas LMSs were seen by students primarily as institutional systems of the teacher, Facebook groups have an educational potential to be used by students for peer-to-peer learning.  相似文献   

Re-referral to child protective services: the influence of child, family, and case characteristics on risk status   总被引：2，自引：0，他引：2  

Connell CM  Bergeron N  Katz KH  Saunders L  Tebes JK 《Child abuse & neglect》2007,31(5):573-588

INTRODUCTION: This study examines child, family, and case characteristics that impact rates of re-referral to Child Protective Services (CPS) using data on all closed CPS investigations for the state of Rhode Island between 2001 and 2004. METHOD: A longitudinal dataset of all referrals to CPS was created using state submissions to the National Child Abuse and Neglect Data System (NCANDS). After excluding children whose initial CPS investigation resulted in removal from the home, a Cox proportional hazards model was tested to examine factors impacting the likelihood of re-referral. RESULTS: Consistent with other research in this area, the initial 6-month period following case disposition is the period of greatest risk of re-referral. Approximately 13% of cases experienced a recurrent allegation during the first 6-month period; an additional 14% experienced a re-referral over the following 12-month period; 7% during the next 12-month period. Family poverty was the strongest predictor of re-referral, though a number of child and case characteristics were significantly related to recurrence. Cases that were substantiated at index were significantly less likely to result in a new allegation, though substantiated cases of physical abuse or those receiving post-investigation services were at higher risk. CONCLUSIONS: Children from families facing multiple stressors (e.g., low SES, parental substance abuse child disability) are at highest risk of re-referral to CPS and may benefit from the development of preventive services targeted immediately following case closings within CPS.  相似文献   

Adolescents’ Friendships,Academic Achievement,and Risk Behaviors: Same-Behavior and Cross-Behavior Selection and Influence Processes     

Mariola C. Gremmen  Christian Berger  Allison M. Ryan  Christian E.G. Steglich  René Veenstra  Jan K. Dijkstra 《Child development》2019,90(2):e192-e211

This study examined to what extent adolescents’ and their friends’ risk behaviors (i.e., delinquency and alcohol use) hinder or promote their academic achievement (grade point average [GPA]), and vice versa. Longitudinal data were used (N = 1,219 seventh- to ninth-grade adolescents; M_age = 13.69). Results showed that risk behaviors negatively affected adolescents’ GPA, whereas GPA protected against engaging in risk behaviors. Moreover, adolescents tended to select friends who have similar behaviors and friends’ behaviors became more similar over time (same-behavior selection and influence). Furthermore, although same-behavior effects seemed to dominate, evidence was found for some cross-behavior selection effects and a tendency in seventh grade for cross-behavior influence effects. Concluding, it is important to investigate the interplay between different behaviors with longitudinal social network analysis.  相似文献   

Mental testing and educational streaming in Ontario and Denmark in the early twentieth century: a comparative and transnational perspective     

Patrice Milewski  Christian Ydesen 《Paedagogica Historica: International Journal of the History of Education》2019,55(3):371-390

ABSTRACT

This article compares and contrasts the use of mental testing and the formation of educational streaming in Denmark and Ontario during the interwar years. In this sense, the article adds nuances to the meaning of internationalism as well as contributing to our knowledge about how ideas of testing practices circulated among countries and continents. One way ideas and practices circulated was via informal networks promoted by the education traveller. Key proponents of mental testing in both Denmark and Ontario travelled to continental Europe, England, and the United States studying and observing the practices and institutional arrangements associated with educational streaming. Our main findings are that the processes used to implement mental testing in the two countries differed significantly. Mental testing was implemented much later in Denmark than in Ontario. This was due to different contextual, cultural, and historical factors that promoted changes to the existing system, or, alternatively, represented a barrier or even obstructed changes to it. Nevertheless, mental testing was implemented in both education systems as a relatively coherent technology rooted in transnational movements and exchange, but was attended by highly different practices and local meaning-making.  相似文献   

Assessing study abroad students’ intercultural sensitivity with narratives     

Tarchi  Christian  Surian  Alessio  Daiute  Colette 《European Journal of Psychology of Education - EJPE》2019,34(4):873-894

European Journal of Psychology of Education - This study analyzed study abroad students’ orientations to cultural differences as assessed with mixed methods, including traditional...  相似文献   

A Wittgenstein Approach to the Learning of OO-modeling     

Christian Holmboe 《Computer Science Education》2013,23(4):277-296

The paper uses Ludwig Wittgenstein's theories about the relationship between thought, language, and objects of the world to explore the assumption that OO-thinking resembles natural thinking. The paper imports from research in linguistic philosophy to computer science education research. I show how UML class diagrams (i.e., an artificial context-free language) correspond to the logically perfect languages described in Tractatus Logico-Philosophicus. In Philosophical Investigations Wittgenstein disputes his previous theories by showing that natural languages are not constructed by rules of mathematical logic, but are language games where the meaning of a word is constructed through its use in social contexts. Contradicting the claim that OO-thinking is easy to learn because of its similarity to natural thinking, I claim that OO-thinking is difficult to learn because of its differences from natural thinking. The nature of these differences is not currently well known or appreciated. I suggest how explicit attention to the nature and implications of different language games may improve the teaching and learning of OO-modeling as well as programming.  相似文献   

The impact of participation in sports on educational attainment—New evidence from Germany     

Christian Pfeifer  Thomas Cornelißen 《Economics of Education Review》2010,29(1):94-103

We analyze the impact of exercising sports during childhood and adolescence on educational attainment. The theoretical framework is based on models of allocation of time and educational productivity. Using the rich information from the German Socio-Economic Panel (GSOEP), we apply generalized ordered probit models to estimate the effect of participation in sport activities on secondary school degrees and professional degrees. Even after controlling for important variables and selection into sport, we find strong evidence that the effect of sport on educational attainment is statistically significant and positive.  相似文献   

Efficient reverse k-nearest neighbor estimation     

Elke Achtert  Christian B?hm  Peer Kr?ger  Peter Kunath  Alexey Pryakhin  Matthias Renz 《Informatik - Forschung und Entwicklung》2007,15(3):179-195

The reverse k-nearest neighbor (RkNN) problem, i.e. finding all objects in a data set the k-nearest neighbors of which include a specified query object, has received increasing attention recently. Many industrial and scientific applications call for solutions of the RkNN problem in arbitrary metric spaces where the data objects are not Euclidean and only a metric distance function is given for specifying object similarity. Usually, these applications need a solution for the generalized problem where the value of k is not known in advance and may change from query to query. In addition, many applications require a fast approximate answer of RkNN-queries. For these scenarios, it is important to generate a fast answer with high recall. In this paper, we propose the first approach for efficient approximative RkNN search in arbitrary metric spaces where the value of k is specified at query time. Our approach uses the advantages of existing metric index structures but proposes to use an approximation of the nearest-neighbor-distances in order to prune the search space. We show that our method scales significantly better than existing non-approximative approaches while producing an approximation of the true query result with a high recall.  相似文献   

Optimale Dimensionswahl bei der Bearbeitung des Similarity Join     

Christian B?hm  Hans-Peter Kriegel 《Informatik - Forschung und Entwicklung》2002,6(6):68-76

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American Musical Comedy as a Liminal Ritual of Woman as Homemaker     

Christian Mendenhall 《Journal of American culture (Malden, Mass. : 2003)》1990,13(4):57-69

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