A Cross-Cultural Comparison of the Effects of Source Credibility on Attitudes and Behavioral Intentions     

Kak Yoon  Choong Hyun Kim  Min-Sun Kim 《Mass Communication and Society》2013,16(3-4):153-173

In this article, we investigated (a) whether the commonly reported 3 dimensions of source credibility (expertise, trustworthiness, and attractiveness) are applicable to both Americans and Koreans, and (b) which of those 3 dimensions exerted more influence on the dependent variables in each country. Findings suggest that the dimensionality of source credibility was remarkably similar between the 2 samples. The influence of 3 source credibility dimensions varied by the dependent variables. Attractiveness, expertise, and trustworthiness were equally important to purchase intentions. All 3 dimensions affected involvement with the advertisement message equally. Only trustworthiness had a significant impact on attitude toward brand and brand beliefs. In terms of attitude toward the advertisement, perceived attractiveness of the endorser was more important than expertise and trustworthiness.  相似文献   

Re-presenting Sport: How Instant Replay and Perceived Violence Impact Enjoyment of Mediated Sports     

Leo Jeffres  Edward Horowitz  Cheryl C. Bracken  Guowei Jian  Kimberly A. Neuendorf  Sukki Yoon 《Mass Communication and Society》2013,16(6):787-815

Several long-standing theories intersect in discussing the impact of community characteristics and of the mass media. The structural pluralism model popularized by Tichenor and his colleagues says that social structure influences how mass media operate in communities because they respond to how power is distributed in the social system, whereas the linear model says that the increasing size of a community's population leads to more social differentiation and diversity and corresponding increases in subcultures with their own beliefs, customs, and behaviors. Recently, there has been a concern about how changes in society have led to a decline in organizational activity and the network of relationships and trust that constitute “social capital.” This article examines the impact of population and diversity (using census data) on individuals’ media use, interpersonal discussion and civic engagement (measured in a national survey), and the relationship among these variables. Analysis of a structural model provides evidence that the “linear hypothesis” can be combined with structural pluralism, with size—measured by population—impacting diversity, which influences the relationships that people have with their community. Concurrently, social categories influence people's communication patterns and community relationships, and communication impacts civic engagement.  相似文献   

Effect of screen size on multimedia vocabulary learning     

Daesang Kim  Dong‐Joong Kim 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(1):62-70

The objective of this study was to investigate the effects of three different screen sizes (small, medium and large) and two types of multimedia instruction (text only and text with pictorial annotation) on vocabulary learning. One hundred thirty‐five Korean middle school students learning English as a foreign language were randomly distributed into six groups and were given a pretest, a self‐study multimedia instruction, a posttest and a retention test online. The pretest, posttest and retention test were identical and included 30 vocabulary questions. Results show that the large screen multimedia instruction helped the students to learn English vocabulary more effectively than the small screen instruction as demonstrated on both the posttest and retention test. However, there was little difference in vocabulary learning between the text‐only and text‐with‐pictorial annotation instructions. Although visual perception can be influenced by each learner's expectations and knowledge, using a smaller screen for instruction causes more challenges for learners to perceive and comprehend vocabulary learning.  相似文献   

An integrated framework for RFID adoption and diffusion with a stage-scale-scope cubicle model: A case of Indonesia     

Nyoman Adhiarna  Yoon Min Hwang  Min Jae Park  Jae Jeung Rho 《International Journal of Information Management》2013

This study presents a comprehensive framework to identify dynamic radio frequency identification (RFID) adoption and diffusion from three different perspectives: stages of adoption, levels of analysis, and domain of issues. The main concern of this study is stages of adoption, which covers three phases in respect of the maturity of the RFID project and the sophistication of business applications and RFID technology. The level of analysis involves different units of analysis beyond the organization level, including the industry- and country-level, which is lacking in the current literature. To understand dimensions of RFID issues, a strategy, technology, organization, people and environment (STOPE) based approach was applied. An extensive review of prior literature was conducted to find various RFID success factors and the Delphi method was applied to find positions of these factors within the framework. Based on the Delphi, some factors belong to early stage of adoption, and some others persist in the later stages of adoption. At the country level, factors such as RFID national policy, R&D policy and income per capita were accepted by most experts at the preliminary and intermediate stage; strategy and environment were accepted as important domains. To find practical implications of the framework, a case study of Indonesia was conducted at each level of analysis. Analytic hierarchy process (AHP) was applied to identify most important factors and important domains of issues with respect to the factors from the Delphi results. At country level, RFID policy, vision of leadership and RFID potential market are the most important factors; strategy and environment are the most important domains.  相似文献   

Developing games and simulations for today and tomorrow’s tech savvy youth     

Eric Klopfer  Susan Yoon 《TechTrends》2004,49(3):33-41

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Using Palm Technology in Participatory Simulations of Complex Systems: A New Take on Ubiquitous and Accessible Mobile Computing     

Eric?KlopferEmail author  Susan?Yoon  Judy?Perry 《Journal of Science Education and Technology》2005,14(3):285-297

This paper reports on teachers’ perceptions of the educational affordances of a handheld application called Participatory Simulations. It presents evidence from five cases representing each of the populations who work with these computational tools. Evidence across multiple data sources yield similar results to previous research evaluations of handheld activities with respect to enhancing motivation, engagement and self-directed learning. Three additional themes are discussed that provide insight into understanding curricular applicability of Participatory Simulations that suggest a new take on ubiquitous and accessible mobile computing. These themes generally point to the multiple layers of social and cognitive flexibility intrinsic to their design: ease of adaptation to subject-matter content knowledge and curricular integration; facility in attending to teacher-individualized goals; and encouraging the adoption of learner-centered strategies.  相似文献   

How augmented reality,textual, and collaborative scaffolds work synergistically to improve learning in a science museum     

Susan A. Yoon  Emma Anderson  Miyoung Park  Karen Elinich  Joyce Lin 《Research in Science & Technological Education》2018,36(3):261-281

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Network-adaptive HD MPEG-2 video streaming with cross-layered channel monitoring in WLAN     

PARK Sanghoon  YOON Hayoung  KIM Jongwon 《浙江大学学报(A卷英文版)》2006,7(5):885-893

INTRODUCTION Video streaming service nowadays enjoys ex- plosive adoptions over all kinds of underlying net- works. To enjoy the freedom of tether-less connection over the wireless local area network (WLAN), we need to overcome many challenges of unstable wire- less channel due to fading, interference and so on. The scarce and fluctuating available bandwidth (together with time-varying delays and random/burst losses) can cause the video quality at the streaming client to be seriously deg…  相似文献   

Teaching about complex systems is no simple matter: building effective professional development for computer-supported complex systems instruction     

Susan A. Yoon  Emma Anderson  Jessica Koehler-Yom  Chad Evans  Miyoung Park  Josh Sheldon  Ilana Schoenfeld  Daniel Wendel  Hal Scheintaub  Eric Klopfer 《Instructional Science》2017,45(1):99-121

The recent next generation science standards in the United States have emphasized learning about complex systems as a core feature of science learning. Over the past 15 years, a number of educational tools and theories have been investigated to help students learn about complex systems; but surprisingly, little research has been devoted to identifying the supports that teachers need to teach about complex systems in the classroom. In this paper, we aim to address this gap in the literature. We describe a 2-year professional development study in which we gathered data on teachers’ abilities and perceptions regarding the delivery of computer-supported complex systems curricula. We present results across the 2 years of the project and demonstrate the need for particular instructional supports to improve implementation efforts, including providing differentiated opportunities to build expertise and addressing teacher beliefs about whether computational-model construction belongs in the science classroom. Results from students’ classroom experiences and learning over the 2 years are offered to further illustrate the impact of these instructional supports.  相似文献   

Op‐Ed Writing Assignment in Supply Chain Management Courses     

Hee Yoon Kwon  Jiayuan Zhang  Koray zpolat  Yufeng Lin  Adolf K.Y. Ng 《Decision Sciences Journal of Innovative Education》2021,19(1):90-111

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