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The fourth generation mobile phone soon will be launched. Marketers are concerned about customer acceptance, and, in particular, about the main factors that determine whether customers will upgrade their mobile phones, which will affect the diffusion of 3G, 4G, and Worldwide Interoperability for Microwave Access phones. We integrated post- and pre-adoption theories, upgrading and value-based theory and chose 2G and 3G users to examine customers' plans to upgrade their current phones, and found that value assessments can affect mobile users' plans to upgrade to next-generation versions. When 2G mobile users were satisfied with their current model, they were not willing to upgrade to 3G mobile phones. They tend to upgrade by leapfrogging the next generation product as an indirect result of their positive satisfaction with their current model. These results suggest that 2G mobile users consider the 3G mobile phone to be a transitional product, and will wait for future options that are expected to perform better than those presently available. 相似文献
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In recent years, the use of data to inform instructional decision making has become a particularly prominent facet of K–12 educators' professional practice. However, research estimates limited opportunities for preservice teachers to learn how to use data, including standardized test data, for such purposes. In response, this article describes the results of a pretest–posttest study of a 6-hour standardized assessment data use intervention for preservice teachers. The facilitated, collaborative, and highly structured assessment course-embedded intervention engaged preservice teachers in asking and answering four different kinds of questions (e.g., achievement strengths and weaknesses, instructional implications) at five different student levels (e.g., individual, subgroup, school) with external assessment data presented in tables, charts, and score reports. Findings—which include highly favorable preservice teacher perceptions of the intervention's impact on their data-driven decision making skills, and changes in their self-efficacy and data interpretation skills—indicate that the intervention holds promise as a preservice teacher learning mechanism. 相似文献
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Patricia L. Hardré Ching-Huei Chen Su-Hua Huang Chen-Ting Chiang Fen-Lan Jen Leslie Warden 《Asia Pacific Journal of Education》2006,26(2):189-207
The purpose of this research is to investigate predictive relationships among student characteristics that influence motivation for learning and achievement. A non-Western sample was chosen to test the generalisability of findings outside the Western cultural and social models. The participants were 6,539 students from 14 public high schools distributed across the western half of Taiwan. They were from three grade levels, and were balanced in gender. Correlations, analysis of variance, and multiple regression analyses were conducted. Individual differences predicted classroom perceptions, and perceptions predicted motivation, as did goal structures and group differences. Findings can inform educational policy, as well as teacher professional development and practice. 相似文献
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Wei Luo Thomas J. Smith Kyle Whalley Andrew Darling Carol Ormand Wei-Chen Hung Jui-Ling Chiang Jon Pelletier Kirk Duffin 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(3):1462-1481
This paper presents results from a randomized experimental design replicated over four semesters that compared students’ performance in understanding landform evolution processes as measured by the pretest to posttest score growth between two treatment methods: an online interactive simulation tool and a paper-based exercise. While both methods were shown to be effective at enhancing students’ learning of the landform concepts and processes, there was no statistically significant difference in score growth between the two instructional methods. However, the attitudinal survey indicated that students consistently favored the simulation approach over the paper-based exercise. With the simulation method, female students showed greater score growth than males, especially for test items requiring higher level thinking. This indicates that the visually rich interactive simulation tool may be integrated to better support female students’ learning in geoscience. Science major students generally outperformed non-science major students in terms of score growth, which suggests that background knowledge played an important role in realizing the potential of computer modeling in enhancing students’ learning. Sufficient scaffolding is necessary to maximize the effect of interactive earth surface modeling in geoscience education. 相似文献
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This article examines the use of pornographic media by Taiwanese high school students, and explores the effects of exposure to such on their attitudes and behaviour in terms of sexual permissiveness. The results of this research indicate that more than 90 per cent of the students interviewed had at least some exposure to a variety of pornography, with males reporting significantly higher exposure frequencies than females. The results also show that exposure to pornographic media has significant effects on high school students’ sexual permissiveness and nonexclusive sexual attitudes and behaviour. 相似文献
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Bridget A. Franks David J. Therriault Miriam I. Buhr Evelyn S. Chiang Claire M. Gonzalez Heekyung K. Kwon Jenni L. Schelble Xuesong Wang 《Metacognition and Learning》2013,8(2):145-171
This study explored the abilities of 5th, 8th, and 10th graders, and College students to reason logically about what they read. Both students’ metacognitive behavior (looking back at previously read text) and their performance on logical deduction questions were recorded and analyzed in a reading task. Conditional logic premises and deductive questions were embedded in three narratives containing premise information that was factual (True Story), contrary to fact (False Story), or unverifiable via common world knowledge (Neutral Story). The texts and questions were presented one sentence at a time on a computer screen; participants controlled the presentation of sentences. For answering the questions, three response tasks were devised. One task (labeled Generate) required readers to generate their own logical conclusions in response to deduction questions. Two tasks (labeled Valid and Invalid) required readers to evaluate logically valid or logically invalid conclusions drawn by story characters in the texts. Students in early and late adolescence looked back more when asked to evaluate logical conclusions than when asked to generate conclusions on their own; College students’ lookback frequencies were not significantly affected by response task, but were greater overall than those of younger students. With conditional forms requiring an uncertainty response (Affirmed Consequent and Denied Antecedent), readers looked back more when evaluating logically invalid conclusions than when evaluating logically valid ones. Readers of all ages were more likely to agree with story characters’ (valid) uncertain conclusions with the AC and DA forms than they were to disagree with story characters’ (invalid) certain conclusions to these forms. Both lookback frequency and performance on logic questions were lowest when readers were required to reason from contrary to fact premises. 相似文献
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Since the start of the twenty-first century, university rankings have become internationalized. Global rankings have a variety of uses, levels of popularity and rationales and they are here to stay. An examination of the results of the current global ranking reveals that well-reputed world-class universities are amongst the top ranked ones. A major concern for university administrators in many parts of the world is how to use the global rankings wisely in their mid-term and long-term strategic planning for building their institutions into world-class universities. Four major global rankings have been developed: the Academic Ranking of World Universities, the World University Rankings, the Webometrics Ranking of World Universities and the Performance Ranking of Scientific Papers for World Universities. The main purpose of this paper is to explore the most influential indicators in these global university rankings that will affect the rank mobility of an institution. Based on an analysis of correlation coefficients and K-means clustering, a model of strategic institutional planning for building a world-class university is proposed. 相似文献
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