Is social networking a waste of time? The impact of social network and knowledge characteristics on job performance

People use social media to help them solve problems and enhance performance. Users may engage in diverse social interactions online, increasing their knowledge base through both weak and strong ties. In this study we investigate the impact of social networks on job performance, focusing on knowledge quality and diversity based on social network theory and the knowledge-based view. The empirical analysis reveals that the strength of social network ties is strongly associated with knowledge quality in offline interactions, while social network diversity is associated with knowledge quality in online interactions. Knowledge quality acquired from social network has a significant impact on both creativity and productivity of job performance in the workplace. However, knowledge diversity acquired from diverse social network interactions is strongly associated with creativity, but not with productivity. The results of this study increase our understanding of the knowledge sourcing behaviors of workers.     

Personal documentation on a social network site: Facebook,a collection of moments from your life?

Social networking on the Web has become very popular in recent years. Used by more than 950 million people worldwide, Facebook is one of the most popular of these services. One interesting aspect of Facebook is that users can converse through various formats, including wall posts, photographs, Web links, music, and video clips of stories and interests surrounding their daily lives. This phenomenon raises an important question for archivists in regard to personal history on the Web: What are the new ways that contemporary people document their life stories? This study looks at Facebook activities from the perspectives of personal documentation. Using an online survey, this study investigates how Facebook content presents users themselves and their everyday stories, whether they perceive their activities of using Facebook as personal documentation, and what factors influence such activities. The findings of this study show the current status of Facebook usage. Facebook content indeed indicates information of self-presentation and personal documentation of everyday lives of users. Attitudes about and activeness on Facebook are the major factors that influence self-presentation and personal documentation activities on Facebook. Generic external factors, such as personal archiving in general, do not show strong associations with personal documentation activities as factors. Based on this understanding, we discuss the roles of information professionals and cultural heritage institutions in dealing with a new type of personal record on the Web.     

Relationships between childhood abuse and neglect experience and HIV risk behaviors among methadone treatment drop-outs

OBJECTIVE: The purpose of this study was to examine the relationships between childhood abuse/neglect experiences (sexual abuse, physical abuse, emotional abuse, and child neglect) and adult life functioning among Methadone Maintenance Treatment Program (MMTP) drop-outs. METHOD: 432 subjects who dropped out of MMTP were recruited in New York City in 1997-1999. Adult life functioning was measured by HIV drug and sex risk behaviors, Addiction Severity Index (ASI) composite scores, and depression. The chi(2) tests, t tests, correlation, and multiple logistic regressions were performed to examine the relationships between abuse experiences and adult life functioning. RESULTS: The prevalence of child abuse/neglect history was high among MMTP drop-outs: sexual abuse-36%; physical abuse-60%; emotional abuse-57%; child physical neglect-66%; all four experiences-25%. As assessed via ASI composite scores, those who had been abused in childhood had significantly more medical, legal, relationship, and psychological problems than those who had not. Overall, several significant associations were found between the abuse experiences and HIV risk behaviors. Those who had experienced child neglect were more likely to be HIV positive. In multivariate analyses, childhood physical abuse was a significant predictor of having multiple sex partners while depression was significantly related to injection drug use in adulthood (p<.05). There were trends for the relationships between childhood sexual abuse and HIV sex risk behavior (p<.10) and between gender and injection drug use (p<.10). CONCLUSIONS: The findings support a need for drug treatment programs that include specialized therapies for those who suffered childhood abuse and neglect experiences.     

Information activities within information horizons: A case for college students' personal information management

Personal information management behaviors appear differently by sources and by context. This study investigates personal information spaces from a quantitative approach and factors specific information behaviors and sources into information contexts. Using the information source horizon theory as a theoretical framework, college students' information behaviors to specific information sources were investigated in three personal information contexts (academic, health, and personal history contexts). In the college setting, students' personal information horizons echo the findings of previous studies that information contexts determine information horizons in general. In addition, specific information behaviors (collect, organize, and utilize) in this study are an important factor to influence personal information horizons. Certain information activities are observed in similar patterns regardless of contexts. The study suggests that the Information Horizon theory could be expanded to include information behaviors as an important determinant. From the data, radar charts visually present the relationships between information sources and activities, and they served as a collective form of information horizon maps.     

Korean deaf adolescents' awareness of thematic and taxonomic relations among ordinary concepts represented by pictures and written words

Individuals' relative awareness of thematic and taxonomic relations is influenced by factors such as language and background knowledge. Relatively weak in Korean language skills and also having relatively limited social opportunities, Korean deaf adolescents might be different from hearing adolescents in how they make decisions in taxonomically and thematically associated entities represented by pictures and words. Experiment 1 indicated that deaf adolescents had longer reaction times than hearing adolescents in a forced-choice decision-making task. Both deaf and hearing adolescents had shorter reaction times and higher accuracies with pictures than with words, but deaf adolescents' differences were bigger than those of hearing adolescents. Experiment 2 further showed that deaf adolescents had lower accuracies than hearing adolescents in a priming task of living-nonliving categorization. Both deaf and hearing adolescents had shorter reaction times with taxonomic than with thematic categories, but deaf adolescents' difference was bigger than that of hearing adolescents. In conclusion, Korean deaf adolescents were aware of thematic and taxonomic relations less than hearing adolescents in general. They were more likely than hearing adolescents to show the advantage of pictures over words in their performance in conceptual activities and to prefer taxonomic to thematic associations for written words in Experiment 2.     

Exploring informal science education responses to COVID-19 global pandemic: learning from the case of the Gwacheon National Science Museum in Korea

Cultural Studies of Science Education - Science museums have long been heralded as important informal science education sites where people can engage in voluntary and experiential science learning....     

Rethinking approaches to research: the importance of considering contextually mitigating factors in promoting equitable practices in science education research

Cultural Studies of Science Education - In this paper, we explore themes that emerged while reading “How does one recognize contextual mitigating factors (CMFs) as a basis to understand and...     

Contributions of Academic Language,Perspective Taking,and Complex Reasoning to Deep Reading Comprehension

ABSTRACT

Deep reading comprehension refers to the process required to succeed at tasks defined by the Common Core State Literacy Standards, as well as to achieve proficiency on the more challenging reading tasks in the Program for International Student Assessment (PISA) framework. The purpose of this study was to test the hypothesis that three skill domains not frequently attended to in instruction or in theories of reading comprehension—academic language, perspective taking, and complex reasoning—predict outcomes on an assessment of deep reading comprehension. The Global Integrated Scenario-based Assessment (GISA; O'Reilly, Weeks, Sabatini, Halderman, & Steinberg, 2014 O'Reilly T., Weeks, J., Sabatini, J., Halderman, L., & Steinberg, J. (2014). Designing reading comprehension assessments for reading interventions: How a theoretically motivated assessment can serve as an outcome measure. Educational Psychology Review, 26, 403–424. doi:10.1007/s10648-014-9269-z[Crossref], [Web of Science ®] , [Google Scholar]) is designed to reflect students' abilities to evaluate texts, integrate information from an array of texts, and use textual evidence to formulate a position, all features of deep reading comprehension. We tested the role of academic language, perspective taking, and complex reasoning in explaining variance in end-of-year GISA scores, controlling for beginning-of-year scores and student demographics. All three predictors explained small, but significant, amounts of additional variance. We suggest that these three skill domains deserve greater attention in theories of reading comprehension and in instruction.