Theses and Dissertations
This collection includes both ASU Theses and Dissertations, submitted by graduate students, and the Barrett, Honors College theses submitted by undergraduate students.
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Description
The purpose of this action research study was to determine the effectiveness of two online college success courses: CPD 150 (College Success, 3 credits) and CPD 115 (Success Strategies, 1 credit), at Rio Salado College, a Maricopa Community College in Arizona. The goal of these courses is to prepare students to be college-ready by examining college readiness and learning skills. The Motivated Strategies for Learning Questionnaire measured students' perceptions of their own college readiness in a pre-test/post-test format. Understanding students' perceptions of their own college readiness is the college's first step in understanding the effectiveness of these courses. Descriptive statistical analysis was used to compare the pre- and post-tests to determine whether the average student scores changed after completion of the college success course. Paired samples t-tests (or repeated-measures test) were conducted on 2 scales consisting of 13 subscales of the MSLQ of the Motivated Strategies for Learning Questionnaire. Data analysis revealed that students reported that they had better study skills after the course than before completing the course. Particularly, learning strategies, test anxiety, self-efficacy, effort regulation (self-management), control of learning beliefs, study skills, and time and study environment stand out as showing substantial improvement for the students.
ContributorsAbts, Melanie (Author) / Mcintyre, Lisa (Thesis advisor) / Hesse, Maria L (Committee member) / Wukash, Barry (Committee member) / Arizona State University (Publisher)
Created2012
Description
Lots of previous studies have analyzed human tutoring at great depths and have shown expert human tutors to produce effect sizes, which is twice of that produced by an intelligent tutoring system (ITS). However, there has been no consensus on which factor makes them so effective. It is important to know this, so that same phenomena can be replicated in an ITS in order to achieve the same level of proficiency as expert human tutors. Also, to the best of my knowledge no one has looked at student reactions when they are working with a computer based tutor. The answers to both these questions are needed in order to build a highly effective computer-based tutor. My research focuses on the second question. In the first phase of my thesis, I analyzed the behavior of students when they were working with a step-based tutor Andes, using verbal-protocol analysis. The accomplishment of doing this was that I got to know of some ways in which students use a step-based tutor which can pave way for the creation of more effective computer-based tutors. I found from the first phase of the research that students often keep trying to fix errors by guessing repeatedly instead of asking for help by clicking the hint button. This phenomenon is known as hint refusal. Surprisingly, a large portion of the student's foundering was due to hint refusal. The hypothesis tested in the second phase of the research is that hint refusal can be significantly reduced and learning can be significantly increased if Andes uses more unsolicited hints and meta hints. An unsolicited hint is a hint that is given without the student asking for one. A meta-hint is like an unsolicited hint in that it is given without the student asking for it, but it just prompts the student to click on the hint button. Two versions of Andes were compared: the original version and a new version that gave more unsolicited and meta-hints. During a two-hour experiment, there were large, statistically reliable differences in several performance measures suggesting that the new policy was more effective.
ContributorsRanganathan, Rajagopalan (Author) / VanLehn, Kurt (Thesis advisor) / Atkinson, Robert (Committee member) / Burleson, Winslow (Committee member) / Arizona State University (Publisher)
Created2011
Description
Increasing numbers of courses are offered online and increasing numbers of students are pursuing post-secondary studies. At broad-access institutions, such as land grant universities and community colleges, this presents a particular concern around student persistence--that is, the number of students who complete diploma, certificate, or degree requirements from an institution. Such increased access and increased enrollment also present unique challenges to first-year writing instructors, who are often the first professionals with whom first-year students are in contact. Here I explore the many reasons why student persistence should interest first-year writing instructors, in particular, those who are teaching online. Student persistence has important civic, economic, ethical, institutional, and disciplinary implications that first-year instructors cannot ignore. I propose a persistence-based pedagogy that involves six essential elements: designing learner-centered online writing courses, demonstrating mattering by valuing student writing, fostering self-efficacy by making assignments relevant, fostering student connections through collaboration and community, engaging virtual learners by fostering a sense of place and presence, and recognizing the challenges and minimizing the risks of teaching online. Such an undertaking is necessarily transdisciplinary and draws on scholarship in rhetoric and composition, instructional design, educational psychology, applied linguistics, and higher education administration. It connects pedagogical principles advanced nearly fifty years ago with digital pedagogies that are in their infancy and attempts to balance the social epistemic nature of writing instruction with the real-world demands of diverse student populations, increasing course sizes, and ever-changing technologies. Perhaps most importantly, this dissertation focuses on strategies that online writing instructors can adopt regardless of their theoretical leanings, academic training, or institutional requirements. While persistence-based instruction does not change the purpose or outcomes of first-year composition and does not replace proper placement measures or address early-term drop rates, it does provide a framework for facilitating online courses that is rooted in rhetorical theory and composition pedagogy and promotes informed teaching and lifelong learning.
ContributorsBergin, Jeffrey R (Author) / Roen, Duane (Thesis advisor) / Miller, Keith (Committee member) / James, Mark (Committee member) / Arizona State University (Publisher)
Created2012
Description
The purpose of this study was to construct an instructional systems design model for chemistry teaching laboratories at the undergraduate level to accurately depict the current practices of design experts. This required identifying the variables considered during design, prioritizing and ordering these variables, and constructing a model. Experts were identified by multiple publications in the Journal of Chemical Education on undergraduate laboratories. Twelve of these individuals participated in three rounds of Delphi surveys. An initial literature review was used to construct the first survey, which established the variables of design. The second and third surveys were constructed based on the answers from the previous survey and literature review. The second survey determined the priority and order of the variables, and the third survey allowed the participating experts to evaluate the preliminary design model. The results were validated by interviewing three additional experts who had not participated in the surveys. The first round survey produced 47 variable themes identified by the experts as being important to chemistry laboratory design. Of these, 46 variable themes were determined to be important based on their responses to the second-round survey. Second-round survey results were used to determine the order in which participants consider the themes, allowing for construction of a preliminary design model. In the third round, participants found the model to be accurate, organized appropriately, easy to understand, and useful. Interviews supported these results. The final design model included five main phases with individual considerations or steps. These five phases were named planning, development, implementation, revision, and evaluation. The first four phases form a cyclic process, and they are supported by the continuous evaluation phase. The strengths of the model developed in this study include the participation of experts within the field, the ability of the model to start discussions regarding design, and the high level of agreement on the final model. This model could be refined and evaluated to determine its efficacy in assisting novice or expert designers in creating and improving experiments that support learning. The method used in this study could be used for model development in other fields.
ContributorsBunag, Tara (Author) / Savenye, Wilhelmina C (Thesis advisor) / Springer, Joseph W (Committee member) / Klein, James D. (Committee member) / Arizona State University (Publisher)
Created2012
Description
The discussion board is a facet of online education that continues to confound students, educators, and researchers alike. Currently, the majority of research insists that instructors should structure and control online discussions as well as evaluate such discussions. However, the existing literature has yet to compare the various strategies that instructors have identified and employed to facilitate discussion board participation. How should instructors communicate their expectations online? Should instructors create detailed instructions that outline and model exactly how students should participate, or should generalized instructions be communicated? An experiment was conducted in an online course for undergraduate students at Arizona State University. Three variations of instructional conditions were developed for use in the experiment: (1) detailed, (2) general, and (3) limited. The results of the experiment indentified a pedagogically valuable finding that should positively influence the design of future online courses that utilize discussion boards.
ContributorsButler, Nicholas Dale (Author) / Waldron, Vincent (Thesis advisor) / Kassing, Jeffrey (Committee member) / Wise, John (Committee member) / Arizona State University (Publisher)
Created2012
Description
This study purposed to determine the effect of an endogenously designed instructional game on conceptual understanding of the associative and distributive properties of multiplication. Additional this study sought to investigate if performance on measures of conceptual understanding taken prior to and after game play could serve as predictors of game performance. Three versions of an instructional game, Shipping Express, were designed for the purposes of this study. The endogenous version of Shipping Express integrated the associative and distributive properties of multiplication within the mechanics, while the exogenous version had the instructional content separate from game play. A total of 111 fourth and fifth graders were randomly assigned to one of three conditions (endogenous, exogenous, and control) and completed pre and posttest measures of conceptual understanding of the associative and distributive properties of multiplication, along with a questionnaire. The results revealed several significant results: 1) there was a significant difference between participants' change in scores on the measure of conceptual understanding of the associative property of multiplication, based on the version of Shipping Express they played. Participants who played the endogenous version of Shipping Express had on average higher gains in scores on the measure of conceptual understanding of the associative property of multiplication than those who played the other versions of Shipping Express; 2) performance on the measures of conceptual understanding of the distributive property collected prior to game play were related to performance within the endogenous game environment; and 3) participants who played the control version of Shipping Express were on average more likely to have a negative attitude towards continuing game play on their own compared to the other versions of the game. No significant differences were found in regards to changes in scores on the measure of conceptual understanding of the distributive property based on the version of Shipping Express played, post hoc pairwise comparisons, and changes on scores on question types within the conceptual understanding of the associative and distributive property of multiplication measures. The findings from this study provide some support for a move towards the design and development of endogenous instructional games. Additional implications for the learning through digital game play and future research directions are discussed.
ContributorsDenham, Andrew (Author) / Nelson, Brian C. (Thesis advisor) / Atkinson, Robert K. (Committee member) / Middleton, James (Committee member) / VanLehn, Kurt (Committee member) / Arizona State University (Publisher)
Created2012
Description
Major Depressive Disorder (MDD) and Posttraumatic Stress Disorder (PTSD) are highly prevalent illnesses that can result in profound impairment. While many patients with these disorders present in primary care, research suggests that physicians under-detect and suboptimally manage MDD and PTSD in their patients. The development of more effective training interventions to aid primary care providers in diagnosing mental health disorders is of the utmost importance. This research focuses on evaluating computer-based training tools (Avatars) for training family physicians to better diagnose MDD and PTSD. Three interventions are compared: a "choice" avatar simulation training program, a "fixed" avatar simulation training program, and a text-based training program for training physicians to improve their diagnostic interviewing skills in detecting and diagnosing MDD and PTSD. Two one-way ANCOVAs were used to analyze the differences between the groups on diagnostic accuracy while controlling for mental health experience. In order to assess specifically how prior mental health experience affected diagnostic accuracy the covariate of prior mental health experience was then used as an independent variable and simple main effects and pairwise comparisons were evaluated. Results indicated that for the MDD case both avatar treatment groups significantly outperformed the text-based treatment in diagnostic accuracy regardless of prior mental health experience. For the PTSD case those receiving the fixed avatar simulation training more accurately diagnosed PTSD than the text-based training group and the choice-avatar training group regardless of prior mental health experience. Confidence ratings indicated that the majority of participants were very confident with their diagnoses for both cases. Discussion focused on the utility of avatar technology in medical education. The findings in this study indicate that avatar technology aided the participants in diagnosing MDD and PTSD better than traditional text-based methods employed to train PCPs to diagnose. Regardless of experience level the fixed avatar group outperformed the other groups for both cases. Avatar technology used in diagnostic training can be user-friendly and cost-effective. It can also have a world-wide reach. Additional educational benefit could be provided by using automated text analysis to provide physicians with feedback based on the extent to which their case diagnostic summaries cover relevant content. In conclusion, avatar technology can offer robust training that could be potentially transferred to real environment performance.
ContributorsSatter, Rachel (Author) / Kinnier, Richard (Thesis advisor) / Mackenzie, James (Committee member) / Claiborn, Charles (Committee member) / Arizona State University (Publisher)
Created2012
Description
The goal of this research was to understand the different kinds of learning that take place in Mod The Sims (MTS), an online Sims gaming community. The study aimed to explore users' experiences and to understand learning practices that are not commonly observed in formal educational settings. To achieve this goal, the researcher conducted a four-year virtual ethnographic study that followed guidelines set forth in Hine (2000). After Hine, the study focused on understanding the complexity of the relationships between technology and social interactions among people, with a particular emphasis on investigating how participants shaped both the culture and structure of the affinity space. The format for the dissertation consists of an introduction, three core chapters that present different sets of findings, and a concluding chapter. Each of the core chapters, which can stand alone as separate studies, applies different theoretical lenses and analytic methods and uses a separate data set. The data corpus includes hundreds of thread posts, member profiles, online interview data obtained through email and personal messaging (PM), numerous screenshots, field notes, and additional artifacts, such as college coursework shared by a participant. Chapter 2 examines thread posts to understand the social support system in MTS and the language learning practices of one member who was a non-English speaker. Chapter 3 analyzes thread posts from administrative staff and users in MTS to identify patterns of interactions, with the goal of ascertaining how users contribute to the ongoing design and redesign of the site. Chapter 4 investigates user-generated tutorials to understand the nature of these instructional texts and how they are adapted to an online context. The final chapter (Chapter 5) presents conclusions about how the analyses overall represent examples of participatory learning practices that expand our understanding of 21st century learning. Finally, the chapter offers theoretical and practical implications, reflections on lessons learned, and suggestions for future research.
ContributorsLee, Yoonhee Naseef (Author) / Hayes, Elisabeth (Thesis advisor) / Gee, James (Committee member) / Nelson, Brian (Committee member) / Arizona State University (Publisher)
Created2012
Description
Online training materials were introduced to the course production department at Rio Salado College with the intention that the use of standardized training materials would increase the efficiency and effectiveness of the online course production department. After the online training materials had been in use for approximately ten weeks, a survey consisting of ten open-ended questions was used to document the experiences of ten production team members with the training materials. The results revealed that the standardized training materials were described as valuable by the team members. The participants also made several recommendations for improving the usefulness of the training materials as to their content, organization, and availability. Recommendations for revising and updating the training materials and the ways in which they are made available are offered.
ContributorsBarrow, Destinie P (Author) / Clark, Christopher (Thesis advisor) / Arizona State University (Publisher)
Created2012
Description
This study follows three secondary teachers as they facilitate a digital storytelling project with their students for the first time. All three teachers were not specifically trained in digital storytelling in order to investigate what happens when a digital storytelling novice tries to do a project like this with his or her students. The study follows two high school English teachers and one middle school math teacher. Each teacher's experience is shared in a case study, and all three case studies are compared and contrasted in a cross-case analysis. There is a discussion of the types of projects the teachers conducted and any challenges they faced. Strategies to overcome the challenges are also included. A variety of assessment rubrics are included in the appendix. In the review of literature, the history of digital storytelling is illuminated, as are historical concepts of literacy. There is also an exploration of twenty-first century skills including multiliteracies such as media and technology literacy. Both the teachers and their students offer suggestions to future teachers taking on digital storytelling projects. The dissertation ends with a discussion of future scholarship in educational uses of digital storytelling.
ContributorsGordon, Corrine (Author) / Blasingame, James (Thesis advisor) / Nilsen, Alleen P (Committee member) / Early, Jessica (Committee member) / Marsh, Josephine (Committee member) / Arizona State University (Publisher)
Created2011