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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Facilitating variable-length computerized classification testing via automatic racing calibration heuristics

Barrett, Andrew F. 25 April 2015 (has links)
<p> Computer Adaptive Tests (CATs) have been used successfully with standardized tests. However, CATs are rarely practical for assessment in instructional contexts, because large numbers of examinees are required a priori to calibrate items using item response theory (IRT). Computerized Classification Tests (CCTs) provide a practical alternative to IRT-based CATs. CCTs show promise for instructional contexts, since many fewer examinees are required for item parameter estimation. However, there is a paucity of clear guidelines indicating when items are sufficiently calibrated in CCTs. </p><p> Is there an efficient and accurate CCT algorithm which can estimate item parameters adaptively? Automatic Racing Calibration Heuristics (ARCH) was invented as a new CCT method and was empirically evaluated in two studies. </p><p> Monte Carlo simulations were run on previous administrations of a computer literacy test, consisting of 85 items answered by 104 examinees. Simulations resulted in determination of thresholds needed by the ARCH method for parameter estimates. These thresholds were subsequently used in 50 sets of computer simulations in order to compare accuracy and efficiency of ARCH with the sequential probability ratio test (SPRT) and with an enhanced method called EXSPRT. In the second study, 5,729 examinees took an online plagiarism test, where ARCH was implemented in parallel with SPRT and EXSPRT for comparison. </p><p> Results indicated that new statistics were needed by ARCH to establish thresholds and to determine when ARCH could begin. The ARCH method resulted in test lengths significantly shorter than SPRT, and slightly longer than EXSPRT without sacrificing accuracy of classification of examinees as masters and nonmasters. </p><p> This research was the first of its kind in evaluating the ARCH method. ARCH appears to be a viable CCT method, which could be particularly useful in massively open online courses (MOOCs). Additional studies with different test content and contexts are needed.</p>
52

Academic self-efficacy among students enrolled in developmental education| The role of social modeling

DeAngelis, Kristin 24 October 2014 (has links)
<p> Students in developmental education face three types of barriers: institutional, situational, and affective. Current interventions focus on addressing institutional barriers; however, continuing low success and retention rates indicate a need for additional measures. Bandura's theory of academic self-efficacy provides a way to address the affective barriers faced by this student population. This study examines the impact of a series of three five-minute student success videos, based on the social modeling aspect of self-efficacy theory and developed using the Dick and Carey instructional design model, on the academic self-efficacy, retention, and success of developmental education students. A quasi-experimental research design was used to examine the effectiveness of the social modeling intervention. </p><p> Results from this study indicate that an intervention designed using academic self-efficacy as an underlying theory and the Dick and Carey model of instructional design as a creation and implementation guide did not have a significant impact on the academic self-efficacy of students enrolled in developmental education courses. Moreover, the intervention did not have an impact on success and retention rates. Additional analysis indicates that academic self-efficacy was not a significant predictor of either student success or retention. Further research regarding the link between academic self-efficacy and student success and retention at the developmental level is necessary. </p>
53

An investigation of perceptions about smart mobile phone usage as an instructional tool in a high school classroom

Karch, Krista 28 June 2014 (has links)
<p> The prevalence of mobile technology, particularly the mobile phone, is changing the manner in which individuals communicate, access information, conduct business, teach, learn, and cultivate relationships. These technologies have charged stakeholders in both the business and the educational arena with the challenge of embracing mobile phone use and leveraging it as a learning tool. Researchers and educators are exploring the concept of integrating mobile phones into classroom instruction to enhance academic experiences for students, engage them in the learning process, and find new ways of extending learning beyond the school walls. Although this topic of research is in the infancy stage, emerging evidence supports the utilization of mobile phone technology, indicates it can successfully be leveraged in the academic setting and is rapidly becoming the technology of choice. This study contributes to the developing research in the field of integrating mobile phones into the classroom setting as high school teachers and students express their perceptions regarding how mobile phones are currently being utilized in the classroom to support instruction and whether future practices should support integration. </p><p> Data gathered from this study indicate the teacher and student participants support mobile phone access and utilization both in and out of the classroom and value the devices as an instructional resource. Further, in this study participants offer solutions to the perceived challenges that may occur as mobile devices are implemented in the school setting in order to ensure meaningful and successful mobile phone usage. Collectively, teacher and student participants encourage a shift in current educational pedagogy which will support 21st century learning through the use of mobile phones in the educational arena.</p>
54

The perceived technology proficiency of students in a teacher education program

Coffman, Vonda G. 13 June 2014 (has links)
<p> The purpose of this study is to determine the perceived technology capabilities of different levels of undergraduate students of Kent State University in the College of Education, Health, and Human Services teacher education programs; to determine if the perceived technology capabilities of students beginning the teacher education program differ from those nearing completion of the program; and, if the perceived technology capabilities of students change from the start to the end of the Educational Technology course. Examining student perceptions may provide insight on whether preservice teachers think they can prepare students for the 21<sup>st</sup> century once they become inservice teachers. To determine whether preservice teachers perceive that they are being prepared to teach 21<sup>st</sup> century skills by integrating technology into teaching and learning, three groups of students were surveyed: incoming students, junior-level students at the beginning and end of the Educational Technology course, and students nearing graduation. The TPACK survey for preservice teachers (Schmidt, Baran, Thompson, Mishra, Koehler &amp; Shin, 2009) was used to examine preservice teachers' perceptions of their technology capabilities as related to teaching.</p><p> Teachers comprise an integral factor in the effective incorporation of technology into classroom activities, yet many current teachers remain unable or unwilling to employ technology fully or effectively. The findings from this study led to several conclusions, including that the students perceived themselves to have better technological abilities after completing the Educational Technology course and as seniors near the end of the teacher education program, and the results of this study should challenge teacher education faculty to consider how their beliefs, attitudes, and use of technology in teaching and learning are transmitted to their students.</p>
55

The brain and learning| Examining the connection between brain activity, spatial intelligence, and learning outcomes in online visual instruction

Lee, Hyangsook 13 June 2014 (has links)
<p> The purpose of the study was to compare 2D and 3D visual presentation styles, both still frame and animation, on subjects' brain activity measured by the amplitude of EEG alpha wave and on their recall to see if alpha power and recall differ significantly by depth and movement of visual presentation style and by spatial intelligence. In addition, the study sought to determine whether there is any significant interaction between spatial intelligence and visual presentation style on alpha power and recall, and to determine whether any relationship exists between alpha power and recall. </p><p> The subjects in the present study were one hundred and twenty three undergraduate students at a university in the Midwest. After taking Vandenberg &amp; Kuse's Mental Rotations Test, subjects were divided into low and high spatial intelligence groups, and subjects in each spatial intelligence group were evenly assigned to four different types of visual presentation style (2D still frame, 2D animation, 3D still frame, and 3D animation), receiving an instruction on LASIK eye surgical procedure in its respective visual presentation style. During the one-minute visual instruction, subjects' brain activity was measured and recorded using a wireless EEG headset. Upon completion of the instruction, subjects were given a 10-item multiple-choice test to measure their recall of the material presented during the instruction. </p><p> Two 2 (spatial intelligence) x 2 (depth) x 2 (movement) factorial Analysis of Variance (ANOVA) were conducted, one with alpha power as a dependent variable and the other with recall as a dependent variable, to determine whether there is a significant difference in alpha power and recall by spatial intelligence and visual presentation style, as well as whether there is an interaction between these variables that affects alpha power and recall. The Pearson Correlation Coefficient was calculated to examine relationship between alpha power and recall. </p><p> The present study found (a) EEG alpha power did not differ by the difference in depth and movement, (b) 2D and animation were found to be more effective on recall, (c) alpha power did not differ by spatial intelligence, (d) recall did not differ by spatial intelligence, (e) there was a significant interaction between spatial intelligence and movement that affected alpha power; still frame resulted in higher alpha power for low spatial learners, and animation resulted in higher alpha power for high spatial learners, (f) there was a significant interaction between spatial intelligence, depth and movement on recall; for low spatial learners, 2D animation resulted in significantly higher recall than both 2D still frame and 3D animation, and for high spatial learners, 3D animation resulted in significantly higher recall than 3D still frame, and both 2D still frame and 2D animation resulted in close to significantly higher recall than 3D still frame, and (g) there was a mildly inverse relationship between alpha power and recall, brought on by a strong inverse relationship in 2D still frame revealing a 'higher alpha power-lower recall connection' for low spatial learners and a 'lower alpha power-higher recall connection' for high spatial learners.</p>
56

A mixed methods case study of early childhood professionals' perception and motivations of choosing self-directed learning

Walsh, Susan 07 March 2015 (has links)
<p> <b>Purpose.</b> The purpose of this sequential, mixed-methods exploratory case study of early childhood professionals was threefold. First, determine if a relationship exists between a learner&rsquo;s readiness toward directed (DL) and self-directed learning (SDL) style and the perception of their inclination toward directed or self-directed learning, when given a choice of the two. Second, examine how self-selection of DL or SDL relates to learning achievement. Third, detect motivation of individual&rsquo;s selection in directed or self-directed learning.</p><p> <b>Methodology.</b> Quantitative methods in the form of survey assessment were employed to determine 52 participants&rsquo; perceived inclination for SDL compared to their diagnosed readiness for SDL using the Self-Directed Learning Readiness Scale (SDLRS). A pretest/posttest assessment determined achievement of skill in identifying content presented in training. Qualitative data were gathered through semistructured interviews of 24 participants representing all directed and a purposeful sample of self-directed learners.</p><p> <b>Findings.</b> Quantitative data showed that most participants could positively identify if they were ready for SDL, when looking at the readiness level for SDLRS. However, there was no significant relationship between their readiness for SDL and content growth of the training material. Content growth was measured using pretests/posttests. Qualitative data showed that those choosing SDL were motivated by convenience, desire for schedule autonomy, and confidence in ability to complete training independently.</p><p> <b>Conclusions.</b> The study data support the conclusion that adult learners are capable of identifying their readiness for SDL. SDL can be situational, and perceived barriers will motivate choosing DL versus SDL when given a choice. When barriers are mitigated, directed learners&rsquo; behavior may change and parallel self-directed learner behavior.</p><p> <b>Recommendations.</b> Further research is advised: (a) in applying quantitative survey to larger populations to determine more confidently the relationship between SDL and training growth; (b) in applying the research study to a more demographic diverse population that is better representative of the population; (c) applying the research study in various situations, as SDL is situational; (d) in seeking qualitative data from all participants including those not completing the study to discover the motivation and barriers to continue or withdraw from the learning experience.</p>
57

A mixed methods study of shared epistemic agency in team projects in an online baccalaureate nursing course

Hayes, Suzanne 07 January 2015 (has links)
<p> This study explores the role of instructional design in the development of shared epistemic agency (SEA) when RN to BSN nursing students collaborate to complete a team project in an online course. Paavola &amp; Hakkarainen's (2005) trialogical model of learning is used to design a learning activity where teams create a shared knowledge object, a co-authored patient interprofessional care plan to support group knowledge creation. The study addresses the following research questions: 1. What patterns of SEA are evident at the team level as manifest through epistemic and regulative actions in online student discourse? 2a. How did each team's epistemic and regulative decisions contribute to their shared knowledge object? 2b. How did the instructor's online interaction enhance or constrain each team's epistemic and regulative decisions? 2c. How did each team's use of project technology tools affect the development of their shared knowledge object? 3. What contributed to supporting or suppressing SEA in each team? These questions examine SEA in relationship to research in shared knowledge construction pedagogies and instructional design within nursing education. </p><p> This study uses a convergent parallel mixed methods design, in which both quantitative and qualitative data are collected, analyzed separately, and then merged (Creswell &amp; Plano Clark, 2011). Quantitative content analysis is used to examine student discourse for evidence of student epistemic and regulative actions. This is combined with two forms of qualitative analysis. Thematic analysis is used to examine student artifacts and interviews with team members and their instructor to gain deeper insight into the meanings of their epistemic and regulative experiences within this six week collaborative activity. Case analysis is used to describe and synthesize differences among teams that supported or constrained the development of SEA. </p><p> The quantitative strand of research found higher levels of regulative actions compared to epistemic actions in both teams. The qualitative strand of research identified two areas which constrained each team's development of SEA overall. The first related to a series of uncertainties related to apprehensions about working with team members for the first time, concerns about the project and the instructor's expectations, and doubts about using technology for collaboration. The second related to a series of disjunctures associated with students' discordent beliefs about collaboration; contradictory views of conflict; and, discrepent views of leadership. </p><p> Synthesis of these results resulted in six factors that contributed to supporting or suppressing SEA in each team: team contracts, the team wiki, propensity for regulative over epistemic actions, narrow views of conflict, misconceptions about collaborative learning, and the instructor's role. In light of these findings, theoretical and practical implications and recommendations are detailed.</p>
58

Scaffolding critical thinking in wikibook creation as a learning task

Kim, Nari. January 2009 (has links)
Thesis (Ph.D.)--Indiana University, Dept. of Instructional Systems Technology, 2009. / Title from PDF t.p. (viewed on Jul 13, 2010). Source: Dissertation Abstracts International, Volume: 70-12, Section: A, page: 4646. Adviser: Curtis J. Bonk.
59

The impact of printed electronics on product design

York, Nicola January 2018 (has links)
Printed electronics (PE) is a disruptive but growing technology that is beginning to integrate its way into viable applications for product design. However, the potential for future impact of the technology on product design and the designer s role and contribution to this has yet to be established. Interest is increasing in the potential for product designers to explore and exploit this technology. Technologies can be seen as being disruptive from both a business, and an adoption point of view. For a business, changing from one technology to another or incorporating a new technology and its production processes can be difficult if they already have their suppliers established and existing relationships in place. Understanding and adopting a new technology can be challenging for a business and individuals working within an established industry as it can cause many questions to be raised around its performance, and direct comparison with the technology they already have in place. However, there have been many technologies that could be seen as disruptive in the past, as they offered an alternative way of working or method of manufacture, such as Bluetooth, 3D printing, and automation (manufacturing/assembly/finishing), etc., and their success has been dictated by individual s perception and adoption of the technology, with their ability to see the worth and potential in the technology. Cost comparison is also an important aspect for a business to consider when choosing whether to change to a new technology or to remain with their existing technology, as changing can disrupt the manufacturing line assembly of a product, and direct cost comparisons of components themselves, such as the cost of buying silicon components in bulk verses printing the components. The new technology needs to offer something different to a product to be worth implementing it in a product, such as its flexible form or lightweight properties of printed electronics being of benefit to the product over what a silicon electronic component/circuit could offer (restricted to rigid circuit boards), the functionality/performance of the components themselves also need to be considered. Performance, availability and maturity of the technology are some of the essential aspects to consider when incorporating a new technology into a product and these can be evaluated using a Technology Readiness Level (TRL) scale. Interest in the stage of development for a technology lies not only with designers; industry and academia also contribute to knowledge by playing a central role in the process of determining a TRL scale that is universally recognised. However, a TRL separation issue occurs between academia (often the technology only reaching an experimental proof of concept stage, a lower number on the TRL scale indicating that the technology is at an early stage of development) and industry (not considering technology for commercialisation until it reaches a stage where there is a demonstration of pre-production capability validated on economic runs, a much higher number on the TRL scale - indicating that the technology is at a much more advanced stage of development). The aim of this doctoral research was to explore the contribution of PE to product design. The researcher experienced the scientific development of the technology first-hand, and undertook a literature review that covered three main topics: 1) printed electronics (the technology itself), 2) impact (approaches to assessing impact and methods of judging new technology) because together they will identify the state of the art of printed electronics technology, and 3) education - educational theories/methods for designers - studying how designers learn, explore different methods in educating them about new technologies, and start to find appropriate methods for educating them about printed electronics technology. A knowledge framework for PE technology was generated and utilised to produce a taxonomy and TRL scale for PE and confirmed by PE expert interview. Existing case studies in which PE technology had been presented to student designers were investigated through interviews with participants from academia and industry to solicit perception and opinions on approaches for the effective communication of PE knowledge to student designers within an educational environment. The findings were interpreted using thematic analysis and, after comparing the data, three main themes identified: technical constraints, designer s perspective, and what a designer is required to do. The findings from the research were combined to create an educational approach for knowledge transfer aimed specifically at meeting the needs of product designers. This resulted in the need for PE technology to be translated into both a visual and written format to create structure and direct links between the technological elements and their form and function in order to facilitate understanding by designers. Conclusions from the research indicate that the translation of this technology into an appropriate design language will equip designers with accessible fundamental knowledge on PE technology (i.e. electrical components: form, function, and area of the technology), which will allow informed decisions to be made about how PE can be used and to utilise its benefits in the design of products. The capabilities and properties of this technology, when paired with product design practice, has the capacity to transform the designs of future products in terms of form/functionality and prevailing/views towards design approaches with electronics. If exposed to a variety of PE elements ranging across different TRLs, designers have the capacity to bridge the TRL separation issue (the gap between academia and industry) through their ability to create design solutions for an end user and provide a commercial application for the technology.
60

A partial needs assessment of the fashion design program of the Department of Art at North Texas State University with implications for curriculum revision

Andrews, Jean 08 1900 (has links)
The problem of this study concerned the relationships that exist between the actual practices of designers in the apparel industry and the present academic training of future designers. Purposes of this inquiry were to determine the expectations of designers by questioning commercial apparel manufacturers to ascertain the types of functions the fashion designer is expected to perform, to determine the importance the manufacturer places on that activity, and to make an appraisal of the industry's willingness to take an active part in the education of these designers.

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