College of Information Studies
Permanent URI for this communityhttp://hdl.handle.net/1903/1631
The collections in this community comprise faculty research works, as well as graduate theses and dissertations.
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Item Design for Just-In-Time: Resource Design for Self-Teaching Computer Science and Online Learning(2020) Lindeman, Carrie Lucille; Weintrop, David; Library & Information Services; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)The goal of this study is to investigate how just-in-time resources may support self-teaching for adult computer science learners who are new to coding. For people learning computer science on their own, just-in-time resources can be essential for solving problems. A popular online resource that computer scientists of all experience levels rely on is Stack Overflow, a forum that has a question and answer format. Resources like Stack Overflow can help new programmers problem-solve their code without consulting a teacher or professor. However, these resources may be creating barriers in the learning experience that should prepare them for future computer science education. By observing learners using just-in-time resources and interviewing learners about their habits, this thesis provides guidance on potential design suggestions for better supporting users’ future learning. Understanding how just-in-time materials currently support self-teaching for adult novice computer science learners will provide the foundation for these designs.Item Values and Self-Presentation in Online Communication by Stakeholders Related to Homelessness(2014) Koepfler, Jessica; Shilton, Katie; Fleischmann, Kenneth R.; Library & Information Services; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Values are guiding principles of what we consider important in our lives. They shape, and are shaped by, our information behaviors and interactions with technology. Design approaches that explicitly consider values can change the affordances of resulting technologies. This dissertation extends research related to values and information technology use and design within the social context of homelessness, a value-laden social issue in the United States. This study used both quantitative and qualitative content analysis to examine the values expressed in online communication (specifically, the 140-character posts on Twitter known as "tweets") by individuals who identified as homeless in their Twitter profiles. They were compared to the values expressed in the tweets of other stakeholders related to the issue of homelessness, including support organizations and homeless advocates, as well as a comparison group of individuals who did not identify with homelessness in their Twitter profiles. A key contribution of this study is an empirically tested coding manual for identifying salient values of Twitter users through their tweets. The application of this coding manual to Twitter users' timelines of tweets helped to characterize the ways in which values emerge from online communication, highlighting differences between the values expressed by individuals and organizations on Twitter. The study also showed how Twitter users' self-presentation of their online profiles relates to their expressions of values. These findings show how the role of values in one's self-presentation online leads to important implications for the design of sociotechnical systems and for raising awareness about the intersection of technology use and homelessness in the 21st century. These insights are necessary for understanding information technology use by individuals who are relevant but often absent from the development of new information technologies.