Girls and computer science: experiences,perceptions, and career aspirations

The purpose of this mixed methods study was to examine ways to promote computer science (CS) among girls by exploring young women’s experiences and perceptions of CS as well as investigating factors affecting their career aspirations. American girls aged 10–16 participated in focus group interviews as well as pre-, post-, and follow-up surveys while attending a CS camp. The analysis of data revealed that although the participants were generally positive about the CS field, they had very limited knowledge of and experience with CS, leading to little aspiration to become computer scientists. The findings also indicated that girls’ affinity for and confidence in CS were critical factors affecting their motivation for pursuing a CS-related career. The study demonstrated that participation in the CS camp motivated a small number of participants to be interested in majoring in CS, but the activity time was too short to make a significant impact. Based on the findings, we suggest that providing CS programming experiences in K-12 classrooms is important in order to boost girls’ confidence and interest in CS.     

Neighborhood storytelling networks,Internet connectedness,and civic participation after the Great East Japan Earthquake

This study examines how the neighborhood storytelling network, which is conceptualized in communication infrastructure theory and includes interpersonal, organizational and community media connectedness, and an individual's Internet connectedness affected participation in civic activities in the aftermath of the Great East Japan Earthquake, which occurred on 11 March 2011. Responses from 544 randomly selected people residing in Tokyo reveal that connectedness to a neighborhood storytelling network and one's Internet connectedness have positive effects on participation in civic activities in response to the earthquake. However, the two independent factors (neighborhood storytelling and Internet connectedness) do not exhibit a significant relationship with each other. The result suggests the existence of two different conduits for civic engagement in disaster situations – neighborhood storytelling networks and Internet connectedness – mainly distinguished by age.     

Research productivity by career stage among Korean academics

This study explores Korean academics’ changes in research productivity by career stage. Career stage in this study is defined as a specific cohort based on one’s length of job experience, with those in the same stage sharing similar interests, values, needs, and tasks; it is categorized into fledglings, maturing academics, established academics, and patriarchs. Academics’ research productivity in each career stage is analysed, and these characteristics are compared across academic disciplines. In addition, the factors influencing research productivity in different career stages are examined. The results indicate that research productivity among academics changes according to their career stage, and its pattern differs across academic disciplines. Thus, there is a need to provide proper reward systems or career development programs in consideration of such differences.     

Early Childhood Preservice Teachers' Use of Verbal and Non-Verbal Guidance Strategies Across Classroom Contexts

Observations of preservice teachers often lack information about specific strategies they use when guiding children's behavior. This study investigated how preservice teachers used verbal and non-verbal behavior modification techniques within structured and transition classroom contexts. Using an on-the-mark 20-second observe and 10-second record method, eleven preservice teachers were observed in classrooms for two morning hours. A repeated measures MANOVA revealed two significant two-way interactions, which included types of modification techniques and types of contexts (Wilks's λ = .38, F(2, 9) = 7.37, p .05, Cohen's f = .88) and types of communication skills and types of contexts (Wilks's λ = .64, F(1, 10) = 5.53, p .05, Cohen's f = .74). Implications for future research and practice include more focused observations of preservice teachers and children's responses to various verbal and non-verbal strategies along with more education about how to use positive guidance strategies in real-life classroom situations.     

Validating students' library experience survey using rasch model

Few studies have investigated the psychometric property of new instruments developed locally to assess students' library experience, such as their behavior, perception and attitude toward library use. Validating a survey instrument is critical because using untested assessment instruments is more likely to lead to a lack of credibility in the results, as well as a lack of accuracy in the study's purpose (Sullivan, 2011). This study used data from a locally developed student library experience survey distributed in Spring 2018 at a large public research university library to examine undergraduate and graduate students' behaviors, attitudes and perceptions of library use. To test the validity of the survey as to whether six subdomains of the library experience survey contributed to a single construct, library experience, the study used Rasch model framework. This study contributes to the field as a first example using the Rasch model for library assessment purposes. Suggestions for best practices are discussed.     

The bigger,the better? Measuring the financial health of media firms

Abstract

This study examined the degrees of product diversification of media conglomerates since the Telecommunications Act of 1996 and tested the impact of product diversification of the firms on their financial health. The strategy of related product diversification enables firms to gain market power and synergy effect, then improves financial performance. Based on that assumption, for a sample of 26 media firms from 1996 to 2002, this study conducted a regression analysis to test the hypotheses. The results showed two contradictory curvilinear models. First, revenue, EBITDA and sales growth rates revealed a U‐shaped relationship with diversification. That is, performance decreased as firms shifted from concentrated business strategies to related diversification, but performance increased as firms changed from related diversification to unrelated diversification. On the other hand, financial efficiency variables measuring management effectiveness or profitability (ROS, ROA and ROE) and stock market evaluation (earnings per share) showed an inverted U‐shape relationship. Thus, the unrelated diversification led to a decrease in financial efficiency.     

Cross-Cutting Effects of Hypertext Navigation on the Convergence of Attitudes

This study explores the navigation patterns of users reading hypertext-linked online news articles about a controversial issue. With the theoretical frameworks of selective exposure and cross-cutting exposure, the study examined the effects of individuals’ attitudes on their navigation patterns and consequent attitude changes after the news exposure. We asked 130 participants to read positive or negative news articles about the Korea–U.S. free trade agreement (FTA) by selecting six consecutive webpages. The results indicate that their attitudes toward the FTA was a significant predictor of their news selection, providing support for the selective exposure hypothesis. In terms of navigation patterns across the six news selection stages, the participants tended to select news articles that corresponded to their initial attitudes. The selection gap between participants with different attitudes increased until the fifth stage and ultimately converged. In terms of attitude change, the gap in the participants’ attitudes decreased sharply after their navigation.     

Is Pedagogical Content Knowledge (PCK) Necessary for Reformed Science Teaching?: Evidence from an Empirical Study

This study tested a hypothesis that focused on whether or not teachers’ pedagogical content knowledge (PCK) is a necessary body of knowledge for reformed science teaching. This study utilized a quantitative research method to investigate the correlation between a teacher’s PCK level as measured by the PCK rubric (Park et al. 2008) and the degree to which his/her classroom is reform-oriented as measured by RTOP (Sawada et al. 2002). Data included 33 instructional sessions of photosynthesis and heredity videotaped with 7 high school biology teachers. Each session was given a score on both the PCK rubric and RTOP by two independent raters. Results indicate that PCK score is significantly related to RTOP score in terms of both total score (r = .831, p < .01) and sub-component scores (ranging from r = .616 to .805, p < .01). Implications for science teacher education and future research are discussed.     

Learning to Scaffold Science Academic Language: Lessons from an Instructional Coaching Partnership

Research in Science Education - Engagement in meaningful and authentic science learning requires students to access not only the science content and practices but also the academic language...     

From policy rhetoric to reality: the experiences of Southeast Asian science and engineering graduate students in Korea

Asia Pacific Education Review - The presence of international students on campus does not necessarily lead to meaningful interactions between domestic and international students; findings in the...