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Visualizations of subspaces on the World Wide Web can provide users the ability to identify relevant information from a set of Web pages, while gaining new insights or understanding of the space. This study tested three classes of visualization techniques, distortion, zoom, and expanding outline, to better understand which classes of visualization techniques may better represent the underlying structure. The effects of different visualization techniques on user performance on information searching tasks and the effects of different sizes of the Web spaces were studied. Eighty participants were asked to search information with and without a visualization tool over the large Web space. The factors that may have caused cognitive overloads are further discussed.

This study examined the potential of utilizing the Motivated Strategies for Learning Questionnaire (MSLQ) and the Strategy Inventory for Language Learning (SILL) as instruments in measuring Generation 1.5 students' motivation and their use of language learning strategies. The MSLQ was of particular interest because it contains both a basic motivation subscale as well as a motivation/language learning strategies subscale. Participants of this study were 104 Generation 1.5 Korean immigrant students who were members of Korean communities located in Pittsburgh and Philadelphia, Pennsylvania. Participants provided general demographic information and completed both scales in a counterbalanced manner. Results indicated that while the two scales do have some similar content, the scales do not overlap entirely and appeared to measure two discrete indices. Results also indicated that a moderate correlation between MSLQ learning strategies and SILL learning strategies was found as well as between the SILL total score and the MSLQ total score.

Access to this document was granted through an Emerald subscription provided by emerald-srm:123705 [] For AuthorsIf you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. 1 Structured Abstract PurposeThe goal of this study was to investigate the impact of system-generated visual feedback and continued contribution on individuals' motivation to share knowledge in a crowdsourcing environment. Design/methodology/approachAn experimental setting was designed to investigate participants' motivation to contribute knowledge in a crowdsourcing environment. Responses from a total of 101 participants were analyzed. The independent variables were visual feedback and time. The dependent variable was the participants' self-expressed willingness to further contribute in the experimental knowledge-sharing activity. FindingsA significant main effect of time was found, showing overall gains in the mean willingness to participate over time. It was also found that the mean willingness of the control and top assimilation groups were higher than the mean willingness of the rank contrast and status groups. The mean difference obtained for the control group was mainly during the first half of the knowledge sharing tasks, while the mean difference obtained for the top assimilation group was mainly during the second half of the knowledge sharing tasks. Originality/valueThis study contributes to the literature related to motivation in knowledge sharing by providing theory-based, empirical evidence of the potential for external interventions to improve willingness to contribute and sustain knowledge sharing. The findings additionally provide practical implications for motivating and sustaining knowledge sharing.

This study explores factors related to the language learning strategies of second language learners, specifically Generation 1.5 Korean immigrant students -the seventh-largest and one of the fastest growing foreign-born groups in the USA. Participants in this study were members of the Korean communities located in Pittsburgh and Philadelphia who completed a self-report instrument (English as a second language/English as a foreign language strategy inventory for language learning (SILL)) that assesses language learning strategies. Since there is currently no consensus regarding how many factors the SILL adequately measures, the data were examined with an exploratory factor analysis technique. Results add to a growing body of evidence suggesting that a single SILL factor best describes the instrument, as the proposed six sub-domain indices demonstrate tenuous construct validity.