The purpose of this research was to investigate the preferences of online students for technology-based learning environments (TBLEs) as influenced by the level of social presence in the online courses the participating students have taken. This investigation was centered around utilizing TBLEs and methods for establishing social presence in online classes (MESPOC) survey instruments to obtain the preferences of current online students at public university in the state of Texas. This study assumed a qualitative research structure comprising analysis of the data obtained on the TBLE and MESPOC instruments followed by semi-structured interviews with some of the survey participants. The results of the studies indicated that an individual’s preferred online learning environments impacted satisfaction in an online course. Moreover, the study, also explored the students’ preferences when it comes to the organization and facilitation of online courses.

Online education is the fastest growing form of course delivery of higher education in the United States. It has revolutionized how students and instructors interact in the educational process. Yet students in online courses continue to experience higher attrition rates than their counterparts in traditional face-to-face classes despite the advantages offered by the technology. This study examined the impact that institutional policies and practices at community colleges in the state of Texas have had on student persistence in online courses. It also examined how institutions collect and use data in addressing students' attrition. The findings were used to identify the most effective institutional practices to share with community college systems in Texas in an effort to improve student persistence in online courses across the state. The population for the study consisted of the 50 public two-year community college and the technical college systems in the state of Texas. The study used a mixed method. A theoretical model of institutional impact on online persistence was drawn from the literature review. This model's five categories were then used to construct a survey to collect data on institutional practices and measure the effectiveness in addressing student persistence. Four college systems were identified using the survey data that best met the five categories. Interviews were then conducted at these four college systems to produce case studies of these institutions' practices and experiences with online persistence. The results highlighted the roles that institutions play in promoting student persistence in online programs. They revealed differences in the ways institutions define and track student success in online programs and the difficulty these differences pose in comparatively evaluating various institutions' programs. Results lent support to the theoretical model of institutional impact on online persistence that was developed for this study, and results yielded a proposed list of promising practices to enhance student persistence in online programs in public two-year community and technical colleges.

Colleges and universities throughout the world are offering many of their courses via the Internet. Some institutions offer entire degrees online. This has ushered in a renewed interest in the debate on the effectiveness of non-traditional course delivery method. Numerous educational research studies have been conducted in an attempt to quantify that effectiveness. In any form of experimental research, control of variables is paramount. The rich multimedia capabilities of the World Wide Web give educators a wide variety of delivery media. However, with the exception of advice from artisans on design factors of the media, little research has been conducted with regard to the aesthetics of Web page design as viewed by the student. This study was conducted in an effort to establish student preferences with regard to two factors of Web page design as they might be used on those Web pages, background color and typeface used for text. In addition, it contains an analysis of whether or not there is an interaction between the two factors. Use of the results of this study should prove beneficial to both educators and educational researchers in their future endeavors.

As distance learning evolved, course designers and teachers quickly recognized the value of integrating online features into the classroom. The result was blended learning, a combination of online and face-to-face components. This complex and dynamic new form of education has raised many questions about the role of computer-mediated communication in education and has provided new opportunities for extending research in learning and communication. The purpose of the study was to determine whether a blended class will produce different (and possibly better) results in terms of student perceptions of the overall learning experience and student satisfaction than traditional lecture-based face-to-face instruction or learning that is delivered entirely online. The main goals of this study were to compare the effectiveness of face-to-face, online, and blended instruction, and to examine the role of interactions in the effectiveness of each educational method. While each form of instruction received very positive feedback from both students and instructors and the newly introduced blended courses proved very successful in terms of overall satisfaction with the learning experience, the traditional lecture-based courses produced more positive attitudes toward the subject matter. The possible causes of these discrepancies between some of the quantitative and qualitative results point toward the role of previous experience with online learning, cognitive development, and learning styles.

My dissertation examines the experiences of Teachers College faculty that transitioned to online teaching for the first time during the forced circumstances of COVID-19. More specifically, I explore: 1) the relationship between feeling prepared, supported, and connected with professional development; 2) the experiences of faculty making the transition to online teaching; and 3) how faculty described re-evaluating, as Boud describes it, their teaching experiences. To better understand this, I used the case-selection variant of the explanatory sequential, mixed-methods design (quan → QUAL). I surveyed 85 participants (Phase 1) that engaged in professional development opportunities provided by the institution to better understand their experiences preparing for this transition and then interviewed 10-participants (Phase 2) to better understand their unique experiences. I found that most participants that made this transition grew both in their ability to use technology and comfort with teaching online. Participants described the experience as a challenging transition, especially as there was little time to prepare; however, participants also learned (through consultations, intensive programs, colleagues, and students) from this experience. In Phase 2, 7 of 10 participants indicated that they will take their learnings from teaching online and integrate them into their face-to-face teaching.

The purpose of this study was to examine academic department chair perceptions about the future influence of web-based distance education on departmental operations and their changing role as academic leader. Using a rating, modified-policy Delphi method, the researcher worked with 22 department chairs employed at public, urban universities in the United States to develop 76 factor statements about the opportunities, pressures, changing relationships, and role of the chair. In a three-step process, the chairs reduced the 76 factors into 29 predictive statements. Furthermore, the researcher merged the predictions into six themes covering topics such as the importance of external agencies to the successful implementation of web-based education and concerns about future funding. Based on the findings, the researcher argued that the most efficient strategies to promote web-based distance education are through the efforts of the department chair due to the closer proximity of the department to external markets.

The purpose of this research is to identify longitudinal trends relevant to online learning research within 15 highly regarded, peer-reviewed publications in educational technology and online education. Online instruction has become a popular form of education delivery across academic institutions. A review of literature on the topic shows that missing from the corpus is a trend analysis focused in online learning research across multiple journals. Previous efforts of establishing trends in online learning are narrow in focus using only one journal or a shortened time frame. This metatrend analysis employed text mining techniques to examine twenty years (1997-2016) of published research in an effort to establish past, present and emerging trends within published literature. A general bibliometric analysis is offered highlighting prolific and yearly journal publications. Meaningful trending terms used during the twenty-year time period were identified and analyzed. A cluster analysis performed on the extracted data provides a single layer taxonomy regarding online learning research. Time trends within the clusters were identified to offer a more in-depth analysis. Trends revealed during the research indicate a changing relationship of online learning and distance education. A strong emphasis on students and learning was noted as a consistent trend throughout the literature. Emerging categories recognized include openness and mobility, game-based learning, and MOOCs. The intention of the research is to offer an overview of trends in online learning research in order to contribute to the ongoing dialogue concerning the development and delivery of online education.

Background: Evidence has indicated a high prevalence of physical inactivity and insufficient consumption of fruit and vegetables among Chinese college students. As college students are in a crucial transition stage from adolescent to adulthood, such unhealthy lifestyle behaviors at this stage can result in nemerous negative consequences for both individuals and society. Therefore, it is urgently necessary to promote health-enhancing physical activity (HEPA) and fruit-vegetable consumption (FVC) among Chinese college students. Interventions focused on multiple health behavior change (MHBC) have shown advantages over those targeting only a single health behavior, and have therefore gained popularity over the last decade. Despite the increasing use of Internet technology and apparent promise of web-based MHBC interventions, there have been few such interventions for HEPA and FVC among Chinese college students. In addition, within the overarching scope of web-based MHBC interventions, there are several remaining questions that need to be addressed, including the timing of MHBC intervention delivery, the high dropout rate of participants, and the psychological mechanisms behind MHBC. Purpose: The main purposes of the thesis were to (1) examine the comparative effectiveness of sequentially delivered web-based MHBC interventions for HEPA and FVC in Chinese college students from both quantitative and qualitative perspectives; (2) investigate characteristics of dropouts (using quantitative method) and the underlying reasons (using qualitative method); and (3) identify the active ingredients ("key mediators") of successful health interventions for changing single health behavior (HEPA or FVC), and examine the psychological mechanisms of MHBC (HEPA and FVC) in Chinese college students based on an integrated social-cognitive model. Method: In Study 1, two web-based MHBC interventions were developed based on the health action process approach (HAPA) model. In a randomized controlled trial (RCT), 552 eligible college students (M = 19.99 years, SD = 1.04, 58.3% female) were randomly assigned to one of three groups: HEPA-first (4 weeks of HEPA followed by 4 weeks of FVC intervention), FVC-first (4 weeks of FVC followed by 4 weeks of HEPA intervention), and a control group (8 weeks of placebo treatment unrelated to HEPA or FVC). All of the participants were asked to complete online questionnaires at four time-points: at baseline (T1, the beginning of the intervention), after 4 weeks (T2, after the first behavior intervention), after 8 weeks (T3, after the second behavior intervention), and after 12 weeks (T4, 1-month post-intervention follow-up). The questionnairs addressed health behaviors (HEPA and FVC), social- cognitive determinants of behavior change (intention, self-efficacy, planning, and social support for each behavior) and health outcomes (BMI, depression and perceived quality of life). All of the data were analyzed using IBM SPSS 25.0, applying a series of generalized linear mixed models (GLMMs) to evaluate the intervention effectiveness. The mediation analysis was performed using IBM SPSS Process, with residualized change scores and the bias-corrected bootstrap approach (5000 resamples). Following the quantitative intervention study, to further evaluate the effects of aforementioned web-based MHBC interventions and to address dropout issues from a qualitative perspective, 30 students (M = 19.53 years, SD = 0.92, 56.7% female) who had participanted in Study 1 (18 completers and 12 dropouts), were invited to attend one-to-one and face-to-face semi-structured interviews (Study 2). The interviews covered three topics: 1) students' perceptions about their changes after participating in the web-based health program, 2) students' user experience and suggestions related to the design of the intervention content and the website layout and functionality, and 3) the reasons for dropping out. The audio-recorded interview data was transcribed orthographically and organized using QSR NVivo 11. Thematic analysis was adopted to analyze the qualitative data. In addition, a two-layer integrated social-cognitive model was hypothesized in Study 3 based on the HAPA model and Carry-over and Compensatory Action Model (CCAM). With a prospective design, 322 college students (M = 19.47 years, SD = 0.99, 55.6% female) were invited to report their past HEPA and FVC behavior, HEPA and FVC intentions, and demographics at baseline. After two months, an online questionnaire survey was used to collect data on their compensatory cognitions, combined volitional predictors of behavior change (self-efficacy + planning), and current HEPA and FVC behavior. All of the data were analyzed using Mplus 8.0. The proposed model was examined using structural equation modeling (SEM) with path analysis approach. Results: (1) Both the quantitative and the qualitative data fully supported the effectiveness of the web-based MHBC interventions for HEPA and FVC behavior. In addition, the effects on social-cognitive determinants of behavior change were partially supported by the quantitative data, and fully supported by the qualitative data. For health outcomes, the quantitative data supported the intervention effects on body mass index (BMI), and the qualitative data supported the effffects on both BMI and perceived quality of life. Moreover, the two delivery sequences did not show significantly different effects on HEPA after either 8 weeks or 12 weeks, whereas the FVC-first sequence showed superior effects over the HEPA-first sequence for FVC behavior after 12 weeks. (2) In terms of dropout, more male than female students withdrew from the interventions, and the dropouts showed lower HEPA self-efficacies, lower FVC planning, and inferior BMI status than completers. The interview results indicated two themes of dropout reasons: internal reasons (e.g., participants perceiving the health interventions as less necessary and less important) and external reasons (e.g., unfavorable living surroundings and problems with the program's delivery mode, intervention content, and technology). (3) In terms of the mediators of successful interventions for changing each single health behavior, the RCT results indicated that self-efficacy and intention mediated the effectiveness of the intervention on immediate changes (after 8 weeks) in HEPA and FVC, and that intention had a mediating effect on sustained change (after 12 weeks) in both HEPA and FVC. In addition, the prospective study found that the two- layer integrated social-cognitive model proposed in this thesis successfully explained the psychological mechanisms of MHBC in Chinese college students. In particular, the first layer identified the mediating effects of the volitional predictors on the intention-behavior relation for each type of health behavior. The second layer identified a positive association between volitional predictors of HEPA and volitional predictors of FVC, as well as a mediating effect of compensatory cognition between FVC intention and HEPA behavior. Discussion and Conclusions: To the best of our knowledge, this is the first study to examine the comparative effectiveness of sequentially delivered web-based MHBC interventions on HEPA and FVC in Chinese college students, and the first to identify the psychological mechanisms of MHBC in a Chinese context. The findings provide both theoretical and practical implications for future research and the application of MHBC. Future studies should more comprehensively compare simultaneous vs. sequential designs, more systematically examine dropout and its determinants, and further explore the psychological mechanisms of MHBC, especially the transfer mechanisms between the volitional predictors of one health behavior on another

Distance learners are expected to conduct research in fulfilling their coursework. However, they possess varying skill levels and many lack the information literacy skills necessary to access, locate, evaluate and use the information effectively. Numerous academic libraries are increasingly using nontraditional methods such as computer-assisted instruction (CAI) designed to provide instruction. This dissertation aims to address the following research questions: How successful are CAI methods in equipping distance learners with the skills necessary to become information? What are the attitudes of distance learners regarding information literacy? To what extent are they able to locate resources relevant to a research topic? To what extent are distance learners able to identify and cite sources correctly? The study included a sample size of 114 distance learners drawn from writing, communications, psychology, sociology, and business courses. Each of the courses selected had multiple sections which were randomly assigned to the two groups. Participants in the treatment group received computer-assisted instruction, while similar classes from each discipline served as the control group with no change in their instruction. Four instruments were selected to address the research questions. A questionnaire was utilized to gather data on the learners’ attitudes and perceptions regarding information literacy and their own skills. Each participant completed a bibliography which was examined to determine the extent to which students are able to locate, identify, and cite sources correctly. A test was administered to measure the baseline levels of information literacy of distance learners and the extent to which their information literacy knowledge improved upon completion of the Web-based tutorial. The data were analyzed using a number of statistical procedures. SPSS and Excel software were used to obtain descriptive statistics and t tests of independent means. In addition, the one-parameter Rasch model of item response theory (IRT) was conducted to determine the average information literacy skill levels of participants. The findings support the belief that computer-assisted instruction is effective in developing information literacy competencies of students. The results of the test indicated that there are diverse levels of information literacy knowledge and skills among distance learners at the college and that pedagogical intervention is necessary. The participants who took the online information literacy tutorial demonstrated substantial improvement in their information literacy skills, as reflected in the SAILS test and bibliography scores. The survey, when compared with the results of the Critical Thinking Rubric and the SAILS test, confirmed the hypothesis that students overestimate those skills. The findings indicate that the students’ perceptions of their information literacy competencies are not accurately aligned with their demonstrated competencies.

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