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Esther T. Canrinus Michelle Helms‐Lorenz Douwe Beijaard Jaap Buitink Adriaan Hofman 《Educational studies》2011,37(5):593-608
This study shows that professional identity should not be viewed as a composed variable with a uniform structure. Based on the literature and previous research, we view teachers’ job satisfaction, self‐efficacy, occupational commitment and change in the level of motivation as indicators of teachers’ professional identity. Using two‐step cluster analysis, three distinct professional identity profiles have empirically been identified, based on data of 1214 teachers working in secondary education in the Netherlands. These profiles differed significantly regarding the indicators of teachers’ professional identity. Teachers belonging to the found profiles did not significantly differ in their amount of experience. 相似文献
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In this study 81 experimental and 79 control subjects (randomly assigned to treatments) took Form A of the Nelson Reading Test, twice, with a four week interval between test administrations. Instructions for the retest varied for the E and C groups. The latter group was told that the test was readministered for purposes of assessing improvement. The E subjects were informed that by improving their previous score they would be eligible for winning a prize (candy bars, university sweaters, radios). Analysis of covariance indicated that the effect of the awards was significant (p < .01) in terms of number of items attempted and in terms of items correct. The adjusted mean increase for the E subjects was three months. The authors concluded that, if the terms of an actual performance contract would be applied to their results, they were to realize approximately $3,000 profit on a $75 investment. 相似文献
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Kruit Patricia Oostdam Ron van den Berg Ed Schuitema Jaap 《Research in Science Education》2020,50(3):1093-1117
Research in Science Education - Information on students’ development of science skills is essential for teachers to evaluate and improve their own education, as well as to provide adequate... 相似文献
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Lachman P Poblete X Ebigbo PO Nyandiya-Bundy S Bundy RP Killian B Doek J 《Child abuse & neglect》2002,26(6-7):587-617
The challenges facing children in the 21st century are immense and will need to be faced if we are to achieve the goal of child protection for all. Three specific constraints on child protection are examined in this article, namely poverty, HIV/AIDS infection, and war. The authors use their experience in Africa to raise issues of resilience and adaptation, dangers to child protection programs, and possible solutions. Poverty can be both financial and psychological, and this affects the effect of prevention programs. In many African and Asian countries, the AIDS pandemic has changed the social structure of society with AIDS orphans and children infected and affected by HIV/AIDS becoming more common. The impact has devastating effects on the way we view child protection and in particular child sexual abuse. The consequences of post-traumatic stress resulting from war needs to be addressed, and the development of programs that place children in the center of relief programs to foster a culture of child protection is essential. Finally, the article notes that the picture is not overly pessimistic and the examines the achievements in the field of children's rights which underpin all programs aimed at protecting children and the future need to consolidate successes achieved. 相似文献
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This study looks at how student teachers learn to teach during school-based teacher education. It explores the changes that occurred in the practical theories of the student teachers and how the student teachers made these modifications. Eight student teachers were closely monitored during their training. The study's findings show that all student teachers developed broad, well-structured practical theories that focused on pupils' learning processes. Their learning processes displayed considerable individual variation. As a result of these findings, several questions have been formulated for further research concerning the impact of learning style on learning outcomes and learning in a work-based context. 相似文献
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Esther T. Canrinus Michelle Helms-Lorenz Douwe Beijaard Jaap Buitink Adriaan Hofman 《European Journal of Psychology of Education - EJPE》2012,27(1):115-132
This study investigates how relevant indicators of teachers’ sense of their professional identity (job satisfaction, occupational
commitment, self-efficacy and change in level of motivation) are related. A model is proposed, tested with structural equation
modelling (SEM) and refined using data from 1,214 Dutch teachers working in secondary education. Classroom self-efficacy and
relationship satisfaction play a key influencing role in the relationships between the indicators. Using multiple-group SEM,
the parameters of the overall model are similar for the novice, experienced and senior teachers in a constrained model. This
aspect of similarity across experience groups is in line with findings of previous research on teachers’ professional identity.
The present study contributes to the further development of a solid theory on teachers’ professional identity, which has been
lacking. 相似文献
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Roel Hendrickx Ester S.B. Ferreira Jaap J. Boon Guylaine Desmarais Dominique Derome Lora Angelova 《文物保护研究》2017,62(7):393-409
Moisture is a driving factor in the long-term mechanical deterioration of canvas paintings, as well as for a number of physico–chemical degradation processes. Since the 1990s a number of publications have addressed the equilibrium hygroscopic uptake and the hygro-mechanical deformation of linen canvas, oil paint, animal glue, and ground paint. In order to visualise and quantify the dynamic behaviour of these materials combined in a painting mock-up or reconstruction, we have performed custom-designed experiments with neutron radiography and nuclear magnetic resonance (NMR) imaging. This paper reports how both techniques were used to obtain spatially and temporally resolved information on moisture content, during alternate exposure to high and low relative humidity, or in contact with liquids of varying water activities. We observed how the canvas, which is the dominant component in terms of volumetric moisture uptake, absorbs and dries rapidly, and, due to its low vapour resistance, allows for vapour transfer towards the ground layer. Moisture desorption was generally found to be faster than absorption. The presence of sizing glue leads to a local increase of moisture content. It was observed that lining a painting with an extra canvas results in a damping effect: i.e. absorption and drying are significantly slowed down. The results obtained by NMR are complementary to neutron radiography in that they allow accurate monitoring of water ingress in contact with a liquid reservoir. Quantitative results are in good agreement with adsorption isotherms. The findings can be used for risk analysis of paintings exposed to changing micro-climates or subjected to conservation treatments using water. Future studies addressing moisture-driven deformation of paintings can make use of the proposed experimental techniques. 相似文献