Dimensions of quality and accessibility: Selection of human information sources from a social capital perspective     

Lilian Woudstra  Bart van den Hooff  Alexander P. Schouten 《Information processing & management》2012

This study focuses on how the accessibility and quality of co-workers in organizations affect their use as information source. Prior research has produced inconsistent findings concerning these factors’ respective influence on source selection. In this article, we argue that one potential reason for this lies in the lack of coherent definitions of accessibility and quality. To bridge this gap, we unpack these concepts into their underlying dimensions, based on insights derived from social capital theory, more specifically Nahapiet and Ghoshal’s (1998) contribution, to uncovering the multidimensionality of social capital. We empirically test the dimensionality of accessibility and quality, as well as the relative influence of these concepts on human information source selection, in a scenario experiment within an organization. Findings support the proposed dimensionality, and lead to the conclusion that both quality and accessibility influence the selection of human information sources, although quality exerts a slightly stronger influence.  相似文献   

The Contextual Benchmark Method: Benchmarking e-Government services     

Jurjen Jansen  Sjoerd de Vries  Paul van Schaik 《Government Information Quarterly》2010

This paper offers a new method for benchmarking e-Government services. Government organizations no longer doubt the need to deliver their services on line. Instead, the question that is more relevant is how well the electronic services offered by a particular organization perform in comparison with those offered by others. Benchmarking is currently a popular means of answering that question. The benchmarking of e-Government services has reached a critical stage where, as we argue, simply measuring the number of electronic services is not enough and a more sophisticated approach is needed. This paper details the development of a Contextual Benchmark Method (CBM). The value of CBM is that it is both benchmark- and context-driven.  相似文献   

Design and evaluation of a development portfolio: how to improve students’ self-directed learning skills   总被引：1，自引：0，他引：1  

Wendy Kicken  Saskia Brand-Gruwel  Jeroen van Merri?nboer  Wim Slot 《Instructional Science》2009,37(5):453-473

In on-demand education, students often experience problems with directing their own learning processes. A Structured Task Evaluation and Planning Portfolio (STEPP) was designed to help students develop 3 basic self-directed learning skills: Assessing the quality of own performance, formulating learning needs, and selecting future learning tasks. A case study with 10 first-year students in the domain of hairdressing was conducted to evaluate STEPP’s use, usability, and perceived effectiveness. Results from student interviews show that usability and use are influenced by several factors. Students with low prior hairdressing skills, a weakly developed personal approach to direct their own learning, and an inclination to update STEPP as part of their weekly routine, use STEPP more frequently than students without these characteristics. Both the supervisor and students who frequently used STEPP perceived its use as a positive contribution to the development of self-directed learning skills. Furthermore, this study provides guidelines for the design of development portfolios in on-demand education.  相似文献   

Unraveling the influence of domain knowledge during simulation-based inquiry learning     

Ard W. Lazonder  Pascal Wilhelm  Emiel van Lieburg 《Instructional Science》2009,37(5):437-451

This study investigated whether the mere knowledge of the meaning of variables can facilitate inquiry learning processes and outcomes. Fifty-seven college freshmen were randomly allocated to one of three inquiry tasks. The concrete task had familiar variables from which hypotheses about their underlying relations could be inferred. The intermediate task used familiar variables that did not invoke underlying relations, whereas the abstract task contained unfamiliar variables that did not allow for inference of hypotheses about relations. Results showed that concrete participants performed more successfully and efficiently than intermediate participants, who in turn were equally successful and efficient as abstract participants. From these findings it was concluded that students learning by inquiry benefit little from knowledge of the meaning of variables per se. Some additional understanding of the way these variables are interrelated seems required to enhance inquiry learning processes and outcomes.  相似文献   

Development of the self-regulated learning teacher belief scale     

Koen Lombaerts  Free De Backer  Nadine Engels  Johan van Braak  James Athanasou 《European Journal of Psychology of Education - EJPE》2009,24(1):79-96

The present study describes the development and psychometric properties of the Self-Regulated Learning Teacher Belief Scale (SRLTB). The SRLTB is a self-report teacher scale with 10 items assessing teachers' beliefs about introducing self-regulated learning (SRL) in primary education. The process of item and scale development as well as testing and scale refinement procedure is presented. An explorative study (n=399) revealed a one-factor structure representing adherence of teachers for SRL in primary school. Next, Rasch analysis revealed good fit of the scale to the unidimensional continuum model. In a following study (n=553), construct validity of the SRLTB was confirmed. Finally, implications and limitations of the SRLTB for studying SRL are discussed. In general, the SRLTB appears to be a useful instrument for examining teacher beliefs about self-regulated learning practices in primary schools.  相似文献   

The activities of a school‐based teacher educator: a theoretical and empirical exploration     

Corinne van Velzen  Monique Volman 《欧洲师范教育杂志》2009,32(4):345-367

Teacher education all over Europe is increasingly becoming school‐based oriented. This implies new roles for those who support student teachers learning in school. This article describes the way four school‐based teacher educators fulfill their role as educators of student teachers who learn how to teach while participating in the workplace. Based on theoretical notions derived from the literature on teacher education and workplace learning, the Cognitive Apprenticeship Model was specified and used in a case study as a framework to describe the activity of these school‐based teacher educators. They use tools (e.g., apprenticeship assignments) developed within the teacher education institute and rely on their professional knowledge as experienced schoolteachers. This results in student teachers being provided with useful tricks which, however, hardly helps them to interpret and elaborate their experiences from a more conceptual or theoretical perspective. Also the possibilities of the social context of the school as a learning environment are not systematically used.  相似文献   

A meta-analysis of the effect of education on social capital     

Jian Huang  Henriëtte Maassen van den Brink  Wim Groot 《Economics of Education Review》2009

To assess the empirical estimates of the effect of education on social trust and social participation – the basic dimensions of individual social capital – a meta-analysis is applied, synthesizing 154 evaluations on social trust, and 286 evaluations on social participation. The publication bias problem is given special emphasis in the meta-analysis. Our statistical synthesis confirms that education is a strong and robust correlate of individual social capital. The meta-analysis provides support for the existence of a relative effect of education on social participation, and of a reciprocity mechanism between the dimensions of social capital. The analysis also suggests that the erosion of social participation during the past decades has coincided with a decrease of the marginal return to education on social capital. Finally, we find differences in the return to education between genders, between US and other nations, and variations for different education attainments.  相似文献   

Observational learning from animated models: Effects of modality and reflection on transfer     

Pieter Wouters  Fred Paas  Jeroen J.G. van Merriënboer 《Contemporary educational psychology》2009

Animated models use animations and explanations to teach how a problem is solved and why particular problem-solving methods are chosen. Often spoken explanations are proposed to accompany animations in order to prevent overloading the visual channel (i.e., the modality effect). In this study we adopt the hypothesis that the inferior performance of written text compared to spoken text is due to the fact that written text receives less attention and, consequently, less effortful processing. In a 2 × 2 factorial experiment (N = 96) with the factors modality (written, spoken) and reflection (reflection prompts, no reflection prompts) the hypothesis is tested that prompted reflection requires learners to explicitly attend to written explanations and carefully process them, thus yielding higher transfer performance, whereas for spoken explanations prompted reflection would have no effect on transfer performance. The results indeed showed the hypothesized interaction between modality and reflection prompts. They suggest that the modality effect can be compensated for when learners explicitly attend to the information and effortfully process it. This has implications for learning situations in which spoken explanations are no option, such as education for the hearing-impaired.  相似文献   

Teachers' views on understanding evolutionary theory: A PCK-study in the framework of the ERTE-model   总被引：1，自引：0，他引：1  

Esther M. van Dijk 《Teaching and Teacher Education》2009

The study of Pedagogical Content Knowledge (PCK) that is presented in this paper aims to obtain an impression of teachers' knowledge and beliefs concerning teaching evolutionary theory. The starting point of this project was the development of the Educational Reconstruction for Teacher Education model (ERTE). The PCK-study shows that teachers' attitudes toward students' conceptions of evolutionary theory are not always constructive and that teachers often lack awareness of the historical nature of biology. Scenario questions proved to be effective interview items in order to acquire a detailed picture of teachers' ways to react to students' pre-scientific conceptions.  相似文献   

Stimulating Scientific Reasoning with Drawing-Based Modeling     

Dewi Heijnes  Wouter van Joolingen  Frank Leenaars 《Journal of Science Education and Technology》2018,27(1):45-56

We investigate the way students’ reasoning about evolution can be supported by drawing-based modeling. We modified the drawing-based modeling tool SimSketch to allow for modeling evolutionary processes. In three iterations of development and testing, students in lower secondary education worked on creating an evolutionary model. After each iteration, the user interface and instructions were adjusted based on students’ remarks and the teacher’s observations. Students’ conversations were analyzed on reasoning complexity as a measurement of efficacy of the modeling tool and the instructions. These findings were also used to compose a set of recommendations for teachers and curriculum designers for using and constructing models in the classroom. Our findings suggest that to stimulate scientific reasoning in students working with a drawing-based modeling, tool instruction about the tool and the domain should be integrated. In creating models, a sufficient level of scaffolding is necessary. Without appropriate scaffolds, students are not able to create the model. With scaffolding that is too high, students may show reasoning that incorrectly assigns external causes to behavior in the model.  相似文献