Relational and Overt Aggression in Disruptive Adolescents: Prediction from Early Social Representations and Links with Concurrent Problems

Children's representations of conflict and distress situations at 7 years were examined as developmental precursors to relational aggression, overt aggression, and psychiatric symptoms in early adolescence. Children were identified in early adolescence. Children were identified in preschool as normally developing or with behavior problems. Overt, but not relational, aggression, was correlated with concurrent disruptive symptoms in adolescence. Childhood predictors of adolescent aggression were found only for girls: Early hostile themes predicted more relational and overt aggression, while prosocial themes predicted less relational aggression. Also for girls only, early emotions foretold later functioning: Sadness predicted a higher ratio of relational to overt aggression, while inexpressiveness predicted disruptive, anxiety, and depressive symptoms. Relational and overt aggression are discussed with regard to sex differences in symptom changes over time.     

Comparing learning outcomes of video-based e-learning with face-to-face lectures of agricultural engineering courses in Korean agricultural high schools

This study investigated the effectiveness of e-learning by comparing the learning outcomes in conventional face-to-face lectures and e-learning methods. Two video-based e-learning contents were developed based on the rapid prototyping model and loaded onto the learning management system (LMS), which was available at http://www.greenehrd.com. Eighty-five Korean agricultural high school students were randomly assigned into the two groups: face-to-face lecture (control group), and video-based e-learning (experimental group). The students of the experimental group logged onto the LMS in the school computer lab and completed each e-learning module. All students were required to take a pretest and posttest before and after learning under the direction of the subject teachers. One-way analysis of variance (ANOVA) was used to examine any difference between the two groups in terms of learning outcomes. One-way analysis of covariance (ANCOVA) was also administered to verify whether there was any difference between the two groups after controlling for the covariate variable: pretest score. According to the results, e-learning resulted in better learning outcomes than face-to-face lecturing. These findings suggest that the use of well designed and appropriately applied e-learning could be worthy even in agricultural education, which stresses hands-on experience and lab activities. Further research should focus on a different e-learning content type in different agricultural subject fields and its relationship with learning outcome.     

The apprenticeship of observation in career contexts: a typology for the role of modeling in teachers’ career paths

This article extends the literature on teachers’ career paths by attending to the experiences of educators when they were students in secondary classrooms. Grounded in the perspective that biography is central to teaching, we investigate undergraduate pre-service teachers’ educational experiences, views on teaching and learning, and professional plans. We draw upon life history interviews with 40 prospective teachers at three institutions across Pennsylvania, USA. We find that past educational experiences are intricately connected with career choice, intended professional path, and pedagogical focus. This paper identifies and discusses three forms of modeling – disciplinary, mentoring, and empowering – which influence pre-service teachers in powerful and enduring ways. These forms of modeling expand our understanding of teachers’ career intentions and apply the apprenticeship of observation to planned career paths.     

Understanding gender inequality in central e-government: A Korean case study

In this study, we examine gender inequality in the use of the Korean central government website in 2010. Adapting the digital divide and the gender differentiation hypothesis, we analyze e-government users and the determinants of their demand for e-government websites. Specifically, after controlling for socio-economic factors and family characteristics as demand determinants, we test whether gender inequality in e-government access and usage persists across central government units that provide differentiated public services. Our regression results indicate (i) no persistent gender inequality, supporting the gender differentiation hypothesis, and (ii) the importance of family characteristics as a determinant of demands for e-government websites. However, we also find a persistent divide in access to and usage of central e-government services by education and occupation, which deserves more attention and further research.     

Competition's Effects on Programming Diversity of Different Program Types

The public interest goals of television sometimes collide with the goals of market-driven broadcast industries. Because market forces have a pronounced effect on the broadcast sector in most countries, it is important to understand the relation between market competition and public interest goals like program diversity. To find a general pattern governing TV programming in a commercial environment, this study examines the relations between competition and diversity trends for programs oriented toward the public interest and for entertainment shows. The results show that overall diversity is a decreasing function of competition, but that competition's effects on diversity differ for informational and cultural programs and dramas. Both the degree of competition and broadcasters' goals for each program genre have important effects on the diversity of television programming.     

Media Effects on Acculturation and Biculturalism: A Case Study of Korean Immigrants in Los Angeles' Koreatown

Given the assumption that mass media reflect the cultural values of a society, this study investigates the effects of American and Korean mass media on Korean immigrants' acculturation process. Structural equation modeling and hierarchical regression modeling were used to evaluate how exposure to mass media is related to the acculturation process. The survey results from the two different analyses were consistent with each other, in that exposure to American mass media was a significant positive predictor for the acceptance of American cultural values and a significant negative predictor of the affinity for Korean cultural identity. However, exposure to Korean mass media was related to neither immigrant's affinity for Korean cultural identity nor acceptance of American cultural values. Thus, we surmise that even though Korean immigrants are frequently exposed to both American and Korean mass media, they tend to be Americanized instead of bicultural due to the strong effects of the American media.     

Metadata Quality Control in Digital Repositories and Collections: Criteria,Semantics, and Mechanisms

This article evaluates practices on metadata quality control in digital repositories and collections using an online survey of cataloging and metadata professionals in the United States. The study examines (1) the perceived importance of metadata quality, (2) metadata quality evaluation criteria and issues, and (3) mechanisms for building quality assurance into the metadata creation process. The survey finds wide recognition of the essential role of metadata quality assurance. Accuracy and consistency are prioritized as the main criteria for metadata quality evaluation. Metadata semantics greatly affects consistent and accurate metadata application. Strong awareness of metadata quality correlates with the widespread adoption of various quality control mechanisms, such as staff training, manual review, metadata guidelines, and metadata generation tools. And yet, metadata guidelines are used less frequently as a quality assurance mechanism in digital collections involving multiple institutions.     

Digital media education for Korean youth

As youth in contemporary societies grow increasingly dependent on digital media, media education has become a policy consideration, particularly in wired parts of the non-Western world. Due to rapid adoption rates, media penetration, and positive attitudes toward new and innovative technologies, Korea presents an ideal test case for understanding the everyday impact of digital media. The purpose of this paper is to examine the national policies and public discourse concerning digital media education in a rapidly growing market. Specifically, this study considers the development of a standardized educational program for youth in Korea. To frame this analysis, we present an overview of the types of digital media education and trends at the national policy level among English-speaking countries. This is supported by a review of literature focusing on the use of digital media among youth, supplemented by current digital media usage statistics among Korean youth and an overview of Korean government policy programs. A case study of Web site analysis is presented to illustrate implications and stimulate discussion regarding educational policy.     

Duopoly Ownership and Local Informational Programming on Broadcast Television: Before–After Comparisons

This study examines the relationship between duopoly ownership structure and the supply of local news and public affairs programming in the local television market. The results show that both duopoly stations and non-duopoly stations significantly increased their local news programming from 1997 to 2003. The increases were attributable to the top four stations in each market. In addition, stations did not increase their efforts in local public affairs programming after becoming duopolies. The study also found that there was no significant difference in the amount of local news or local public affairs programming aired by duopoly and non-duopoly stations.