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951.
Anne van Goethem Anne van Hoof Bram Orobio de Castro Marcel Van Aken Daniel Hart 《Child development》2014,85(6):2114-2130
This meta‐analysis assessed the effect of community service on adolescent development and the moderation of this effect by reflection, community service, and adolescent characteristics to explicate the mechanisms underlying community service effects. Random effects analyses, based on 49 studies (24,477 participants, 12–20 years old), revealed that community service had positive effects on academic, personal, social, and civic outcomes. Moderation analyses indicated that reflection was essential; the effect for studies that include reflection was substantial (mean ES = .41) while community service in the absence of reflection yielded negligible benefits (mean ES = .05). Effects increased when studies include more frequent reflection and community service, reflection on academic content, and older adolescents. These findings have implications for understanding and improving community service. 相似文献
952.
Rens van de Schoot David Kaplan Jaap Denissen Jens B. Asendorpf Franz J. Neyer Marcel A.G. van Aken 《Child development》2014,85(3):842-860
Bayesian statistical methods are becoming ever more popular in applied and fundamental research. In this study a gentle introduction to Bayesian analysis is provided. It is shown under what circumstances it is attractive to use Bayesian estimation, and how to interpret properly the results. First, the ingredients underlying Bayesian methods are introduced using a simplified example. Thereafter, the advantages and pitfalls of the specification of prior knowledge are discussed. To illustrate Bayesian methods explained in this study, in a second example a series of studies that examine the theoretical framework of dynamic interactionism are considered. In the Discussion the advantages and disadvantages of using Bayesian statistics are reviewed, and guidelines on how to report on Bayesian statistics are provided. 相似文献
953.
Esther de Groot Maaike D. Endedijk A. Debbie C. Jaarsma P. Robert-Jan Simons Peter van Beukelen 《Studies in Continuing Education》2014,36(1):15-37
Communities in which professionals share and create knowledge potentially support their continued learning. To realise this potential more fully, members are required to reflect critically. For learning at work such behaviour has been described as critically reflective work behaviour, consisting of six aspects: challenging groupthink, critical opinion sharing, an openness about mistakes, asking for and giving feedback, experimentation and research utilisation. We studied whether and how these aspects can be distinguished in dialogues of seven different communities of veterinary professionals (critically reflective dialogues). Our exploration of the nature of critically reflective dialogues resulted in an analytical framework. Within each aspect four different modes of communication were identified: interactive, on an individual basis, non-reflective and restricted. We assume that professionals use learning opportunities most in the interactive mode of communication. The framework was employed to study the extent to which dialogues showed these modes of critically reflective dialogues. The results demonstrate that in these communities the modes of communication within aspects were largely non-interactive (i.e., individual, non-reflective). The developed framework discriminates between communities in terms of their critically reflective dialogues. Interventions to improve the effectiveness of learning communities should focus on enhancement of members addressing each other's reasons and reflections. 相似文献
954.
There is growing interest in self-study methods being used by teachers and teacher educators to improve their own practice. The focus of these self-studies seems to be more on acting than on understanding, and here we focus on a group of teachers who explore their professional identities. Teachers participating in a Master’s degree study were asked to formulate critical moments in their development in which they felt their values were challenged and they were faced with a dilemma connected to these challenges. They then used different self-study research methods to dig deeper into their reports. This article focuses on exploring the normative dilemmas that teachers face in their daily practice and how their self-understanding is influenced by studying these dilemmas. We found that participating teachers faced two main dilemmas between external guidance and self-regulation, and between self-consciousness and relatedness. We also found that the effects of self-study research are connected to a deeper understanding of how things work and that finding core values such as trust, connectedness, and creating space can generate a breakthrough in the two main dilemmas. 相似文献
955.
Is more always better? We address this question in the context of bibliometric indices that aim to assess the scientific impact of individual researchers by counting their number of highly cited publications. We propose a simple model in which the number of citations of a publication depends not only on the scientific impact of the publication but also on other ‘random’ factors. Our model indicates that more need not always be better. It turns out that the most influential researchers may have a systematically lower performance, in terms of highly cited publications, than some of their less influential colleagues. The model also suggests an improved way of counting highly cited publications. 相似文献
956.
Ludo Waltman Nees Jan van Eck Thed N. van Leeuwen Martijn S. Visser 《Journal of Informetrics》2013,7(2):272-285
The SNIP (source normalized impact per paper) indicator is an indicator of the citation impact of scientific journals. The indicator, introduced by Henk Moed in 2010, is included in Elsevier's Scopus database. The SNIP indicator uses a source normalized approach to correct for differences in citation practices between scientific fields. The strength of this approach is that it does not require a field classification system in which the boundaries of fields are explicitly defined.In this paper, a number of modifications that were recently made to the SNIP indicator are explained, and the advantages of the resulting revised SNIP indicator are pointed out. It is argued that the original SNIP indicator has some counterintuitive properties, and it is shown mathematically that the revised SNIP indicator does not have these properties. Empirically, the differences between the original SNIP indicator and the revised one turn out to be relatively small, although some systematic differences can be observed. Relations with other source normalized indicators proposed in the literature are discussed as well. 相似文献
957.
Worldwide, the interest of policy-makers in participating in studies from the International Association for the Evaluation of Educational Achievement (IEA), such as Trends in International Mathematics and Science Study (TIMSS) has been growing rapidly over the past two decades. These studies offer the opportunity to relate the teaching and learning context to student achievement. This article presents the results of a systematic review of the research literature on TIMSS. Its main purpose is to find out to what extent TIMSS has contributed to insights into ‘what works in education and what does not’, particularly with regard to school and classroom factors. The review was guided by a generic framework developed within the tradition of educational effectiveness research. The review showed that: (a) since 2000, the number of publications which use TIMSS data for secondary analyses aimed at explaining differences in student achievement has increased strongly; (b) a number of studies, especially older ones, did not take account of the specific sample and test design of TIMSS; and (c) there are large differences between countries in school and classroom factors associated with student achievement. In the light of these results, we discuss the benefits and limitations of country and system comparisons. 相似文献
958.
Wim J. van der Linden 《Journal of Educational Measurement》2013,50(3):324-337
This article is a response to the commentaries on the position paper on observed‐score equating by van der Linden (this issue). The response focuses on the more general issues in these commentaries, such as the nature of the observed scores that are equated, the importance of test‐theory assumptions in equating, the necessity to use multiple equating transformations, and the choice of conditioning variables in equating. 相似文献
959.
SEPTIMUS is a one‐year Europe‐wide postgraduate theoretical course for psychotherapists and counsellors provided entirely via the Internet. It may be used as part of a training course, with face‐to‐face elements provided locally, or for continuing professional development. The course was developed at the University of Sheffield in collaboration with psychotherapy training institute partners in seven other European countries. Two studies involving 167 SEPTIMUS students and 60 comparable face‐to‐face students were undertaken. ? Study 1. Drop‐out rates for the SEPTIMUS programme were found to be low, and comparison between those dropping out and those completing did not highlight any significant factors linked to distance learning. However, students cited finance, distance from training centre, lack of practical experience, family commitments and the intensity of their working weeks as having been barriers to taking face‐to‐face learning courses in the past. ? Study 2. SEPTIMUS students (e‐learners) were compared with students taking comparable attending (face‐to‐face) theoretical courses also being provided by partners in the project to psychotherapy trainees. Significant differences were found in distance from training institute and ability to visit training institute. SEPTIMUS students had higher levels of computer ownership, frequency of Internet use and IT skills than attenders; these factors when examined in Study 1 did not have an impact on the drop‐out rate of e‐learners. e‐Learning can overcome barriers to traditional learning in psychotherapy, particularly distance from a training centre, without loss of student satisfaction or student performance. Factors sometimes thought to be obstacles to e‐learning, such as information technology skills, were not found to be significant barriers – although they may have affected recruitment. Certain aspects of e‐learning, such as the tendency to facilitate self‐disclosure, were found to be very beneficial, particularly in the context of psychotherapy programmes. 相似文献
960.
Conflicts all over the world result in people living in diaspora, usually maintaining strong ties with their countries of origin. As many of them are well educated and dedicated to their country, expectations of the role they can play in the development of their home country are high. This article reflects on the contribution of the South Sudanese diaspora to the reconstruction of the education system, which was badly affected by over 40 years of civil war. Theories of capacity development, human capabilities and transnationalism are used to build a framework to analyse micro-development projects in the education sector initiated by the South Sudanese diaspora. Case studies and in-depth interviews led to the identification of opportunities and challenges as experienced in these projects. The conclusion points to the need to rethink partnerships in the reconstruction of the education sector in South Sudan. 相似文献