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71.
Marcel Helbig MA Sozialwiss 《Zeitschrift für Erziehungswissenschaft》2012,15(3):597-614
Not just in Germany, but also in other countries of the western world, gender-specific educational success has changed within the last decades: Whereas boys showed higher educational achievements in the 1960s, today it is the girls who obtain higher educational certificates. A number of scholars have pointed to the absence of male role models in boys?? social environment (family and school) as a reason for their worsening school performance. In this article, we use data from the German Micro-census 2008 to analyze the following question: Does it make a difference for boys?? and girls?? transition to academic track secondary school (Gymnasium) whether they grow up in a nuclear family or with single-mothers or single-fathers? The results of the analyses yield no evidence for the claim that the absence of fathers in the family has a negative impact on boys?? performance at school. 相似文献
72.
This study shows the results of a two-year longitudinal study where the same participants were followed for two consecutive years as they enter secondary school (aged 12–14 years). The main issue was to investigate the development of both the quantity and the quality of metacognitive skills. Another issue was to establish whether the development of metacognitive skillfulness is intelligence-related or relatively intelligence-independent. Finally, the generality vs. domain-specificity of developing metacognitive skillfulness was investigated. Thirty-two secondary school students participated in this study. While thinking aloud they performed two different tasks representing two different domains: A text-studying task for history and a problem-solving task for math. Participants' intellectual ability, metacognitive skillfulness and learning performance were assessed. Results show a quantitative as well as a qualitative growth in metacognitive skillfulness. Furthermore, results of both years show that metacognitive skillfulness contributed to learning performance (partly) independent of intellectual ability. A parallel development of metacognitive and intellectual ability was found. Finally, metacognitive skills predominantly appear to be general. Domain-specific metacognitive skills, however, played a substantial, but minor role as well in both years. Instructional implications are being discussed. 相似文献
73.
74.
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
75.
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
76.
Richard R. Nelson Kristin Buterbaugh Marcel Perl Annetine Gelijns 《Research Policy》2011,40(10):1339-1344
The conventional wisdom regarding the source of progress in medical practice highlights the role of basic scientific research into the nature of disease pathologies. This perspective neglects the important role of two other sources of progress in medicine. One is the advance of technologies that have enabled the development of new modalities of treatment and diagnosis. The other is learning in clinical practice. In many cases the advance of treatment has involved the interaction of all three of these pathways to progress. 相似文献
77.
Steve Sawyer Kevin Crowston Rolf T. Wigand Marcel Allbritton 《The Information Society》2013,29(2):135-154
Information and communications technologies (ICT) are becoming pervasive in the residential real-estate industry and their usage is affecting the work lives of real-estate agents. Drawing on data from a regional study of the residential real-estate industry in the United States, we focus on the disintermediation or, more accurately, the reintermediation of real-estate agents in the sales process. Using data collected from interviews, direct observation, and archival records, we examine how real-estate agents are (1) taking advantage of new ICT in their work, and (2) protecting themselves from others wishing to displace their position in the real-estate value chain. Our analysis of this activity draws on two contrasting theoretical perspectives to illuminate the roles of residential real-estate agents: transaction cost and social capital. The results of this study provide insights into the ways in which ICT are used to build and draw on the social relationships that underpin the actual transactions, to help guide the process of buying/selling a house, and to invoke expertise as needed. 相似文献
78.
Miguel Ángel Cano Linda G. Castillo Yessenia Castro Marcel A. de Dios Angelica M. Roncancio 《International journal for the advancement of counseling》2014,36(2):136-149
This study examined associations of intragroup marginalization and cultural incongruity with acculturative stress and depressive symptoms among 155 undergraduate U.S. college students of Mexican heritage. Findings indicate that perceived interpersonal distancing by the family (intragroup marginalization) and perceived lack of cultural fit between the respondent and academic institution (cultural incongruity) had statistically significant direct and indirect effects on depressive symptoms via acculturative stress. Results also show that 39.7 % of the variance corresponding with depressive symptoms was accounted for by intragroup marginalization, cultural incongruity, acculturative stress, and other exogenous variables. 相似文献
79.
Gerda Sula Marion Dutrevis Marcel Crahay 《Early Years: An International Journal of Research and Development》2019,39(4):346-359
ABSTRACTThis research explores two ongoing professional development (PD) modalities for early childhood teachers and their effect to teachers’ performance. We compare training, teacher study groups and a combination of both to a control group in the Albanian preschool context. We aimed to obtain mоrе cоmplеtе understanding оf different facеts оf thе ongoing professional development оf еarly childhооd tеachеrs and its pоtеntial impact оn program quality and children’s dеvеlоpmеnt in different еarly childhооd sеttings, especially in countries of low and middle income. This study has led to policy changes in mоrе еfficiеntly planning rеsоurcеs, not only fоr еarly childhood tеachеrs’ PD, but tо tеachеrs and оthеr practitiоnеrs in thе field as well. This research has pushed for evidence-based policy reforms in teacher professionalization and career advancement in Albania. 相似文献
80.
Achraf Ammar Bryan L. Riemann Liwa Masmoudi Marcel Blaumann Osama Abdelkarim Anita Hökelmann 《Journal of sports sciences》2018,36(12):1319-1330
The aim of the present study was to investigate loading effects on kinematic and kinetic variables among elite-weightlifters in order to identify an optimal training load to maximize power production for clean-movement. Nine elite-weightlifter (age: 24 ± 4years, body-mass: 77 ± 6.5kg, height: 176 ± 6.1cm and 1RM clean: 170 ± 5kg) performed 2 separate repetitions of the clean using 85, 90, 95% and 100%, in a randomized order, while standing on a force platform and being recorded using 3D-capture-system. Differences in kinematics (barbell displacement, velocity and acceleration) and kinetics (power, vertical ground reaction force (vGRF), rate of force development (RFD), and work) across the loads were statistically assessed. Results revealed significant load effects for the majority of the studied parameters (p < 0.01) and showed that typical bar-displacement, greatest bar-velocity and peak-power were achieved at 85 and 90% 1RM (p < 0.001). Additionally greater average power was shown for 90 and 95% (p < 0.01) and greater work and vGRF were shown for 90, 95 and 100% than 85% 1RM (p < 0.05). Load had no significant effect on peak-vGRF and peak-RFD (p > 0.05). The results of this study, suggest 90% 1RM to be the most advantageous load to train explosive-force and to enhance power-outputs while maintaining technical efficiency in elite-weightlifters. 相似文献