The purpose of this dissertation was to use the technology of text mining and topic modeling to explore unobserved themes of medical case reports that involve medical imaging. Case reports have a valuable place in medical research because they provide educational benefits, offer evidence, and encourage discussions. Their form has evolved throughout the years, but they have remained a key staple in providing important information to the medical communities around the world with educational context and illuminating visuals. Examining medical case reports that have been published throughout the years on multiple medical subjects can be challenging, therefore text mining and topic modeling methods were used to analyze a large set of abstracts from medical case reports involving radiology. The total number of abstracts used for the data analysis was 68,845 that were published between the years 1975 to 2022. The findings indicate that text mining and topic modeling can offer a unique and reproducible approach to examine a large quantity of abstracts for theme analysis.

The dissertation aims to expand access through a low-cost technological innovation system S-MLS to learners in underdeveloped areas with difficulties in accessing education. Technology is advancing rapidly. However, many parts of the world need access to educational advances, which are hindered due to war, political situations, and low literacy and income. A qualitative phenomenological approach explores the lived experience using the solar-powered computing and learning management system (LMS) to support the development of educational access in underrepresented societies, developing countries, and rural areas where access to proper classroom education is non-existent. Proof of concept is used with a group of students in a rural area, a developing country, and within an underrepresented population to check the feasibility of using the equipment in a real-world setting. A technology acceptance model would be used to identify the user's perceived interest and user acceptance. The community of inquiry theory would find the first-hand experience and point of view of the learner. The student group interviews would be through semi-structured interviews. Observations, surveys, video/audio recordings, and artifacts would be gathered for further analysis. The data collected would be analyzed using interpretative phenomenology analysis (IPA), close examination, and management of development themes through thoughts, observations, …

Children of today are gaining exposure to electronic reading environments at earlier ages and in greater frequencies than prior generations, as evidenced by the ubiquity of modern technologies. Such technologies provide affordances beyond basic text by supporting the screen-based rendering of aural, visual, and gestural elements. This research investigates, by way of a fixed effects meta-analysis, the overall effect of electronic reading environments on the comprehension outcomes of children between the 4th and 8th grades. Findings yielded three published studies between 2016 and 2020. Results from a total population sample of 2,125 students across the United States, showed small but significant effects of reading technology on comprehension. The implications of these findings are discussed in light of their pedagogical applications and future research directions.

The purpose of this quantitative study was to further explore pedagogical balance using multidimensional scaling and epistemic network analysis. Teacher shortages and attrition remain a critical issue for the future, and simulated classroom environments like simSchool can provide teachers additional training to help improve teaching confidence and teaching experience. Two different data sets were analyzed at various time before and after simSchool use to see how pre-service teachers rate themselves in 8 areas of teaching as defined by the Survey of Teaching Skills. Multidimensional scaling was utilized to see how teaching confidence and teaching experience align with no simSchool use, 90 minutes of use, and 8 hours of use. Epistemic network analysis was utilized to look at the cognitive structures of different groups to determine any differences. The findings are discussed with future research directions provided.

The purpose of this study was to evaluate the impact of computer-based simulation on prelicensure senior second semester undergraduate baccalaureate nursing students' knowledge and satisfaction. The goal was to explore the current state of nursing education in relation to the nursing student's experience with interruptions and interruption management as interruptions and interruption management are an underexplored area of the nursing education experience, yet interruptions impact nursing performance and patient safety. Including effective interruption management in nursing education is the ultimate aim of this effort. The design of the study was a descriptive case study with mixed methods including quantitative and qualitative data collection and analysis. The quantitative analysis encompassed pretest and posttest drug calculation knowledge tests and a satisfaction survey. The qualitative portion of the study involved a focus group discussion relating to the nursing student's experience with interruptions and interruption management. The study results demonstrated that the participants were satisfied with the computer-based simulation. Furthermore, the results demonstrated that the professional nursing education of the study participants was devoid of interruption and interruption management education in the classroom, lab, and high-fidelity simulation. The themes that emerged from this study describe the current state of the second semester nursing student's …

This dissertation explored the cost and value of 1:1 computing programs in high schools in Texas. The study examines whether the total cost of ownership of these programs can be justified by the student testing gains and graduation rates. It investigates whether student learning outcomes show a definable correlation between positive gains and the implementation of 1:1 computing programs. The study also explores whether there is a measurable return on investment of 1:1 programs based on testing gains and graduation rates. The research used the State of Texas Assessment of Academic Readiness exam scores to validate assumptions and test the hypothesis. The study found no clear link between the addition of 1:1 computing programs and the realms of student success. While there is marginal improvement in student outcomes, there is only circumstantial evidence that laptops and devices are the catalysts for the change. The dissertation also found that the total cost of ownership (TCO) is a significant portion of the district's spending, costing millions of dollars, and that the financial disclosure and budget information data was either missing, incomplete, or over-generalized, causing an issue for assessing program effectiveness or ROI. Despite this lack of transparency, there is a slight positive …

In the modern economy, national innovation systems (NIS) contribute to a substantial increase in economic development in numerous parts of the world. NIS has been instrumental in integrating most developing countries' economies into the global capitalist system; however, some developing countries lag the innovation capacities to develop their NIS. The inability of the countries in Sub-Saharan Africa to gauge their NIS is problematic and probably risky for the countries' future development. Without proper evaluation and monitoring, it is hard for governments to create policies to advance their NIS to attain their desired economic development objectives. Development experiences of the countries in Sub-Saharan Africa and their insignificant standings in the global exchange of goods and services warrant a comprehensive way to measure and evaluate their NIS. This study ascertained how predictor variables: government effectiveness index (GEI), percentage of public spending on education (PSE) and labor force (LF) influenced the criterion variables: gross domestic product (GDP), gross national income (GNI) and human development index (HDI). The results categorized the countries that are performing soundly or not, and the knowledge from the assessments can aid in improving national policies for future performance of NIS in Sub-Saharan Africa. Likewise, it can help to create …

Although the Dimensions of the Learning Organization Questionnaire (DLOQ) has been widely accepted by the HRD community, it has not been tested in a startup context for reliability. The purpose of the current study is to explore if the DLOQ is a reliable instrument for startups to help them be more successful. The current study seeks to address some of the questions, which have been posed by previous researchers. The study utilizes a mixed-method design applying Cronbach alpha values to check the reliability of the instrument in a startup learning environment, with more than 600 participants and 42 startup businesses at a university in the Mountain West. The study uses objective financial measures for startup firms to explore the correlation between the seven dimensions of the DLOQ and startup companies at the university. Cronbach alphas for the instrument measured at the .80 level or higher. Four of the dimensions were found to be statistically significant resulting in a model that accounted for 30% of the variance in predicted Operating Income (p<.004) and 29% of the variances in predicted Net Income (p<.003). The study also uses qualitative analysis to explore what activities relate to the seven dimensions of the DLOQ, and …

The evaluation of the transition experiences of veterans to civilian life was conducted. The military to civilian transition (MCT) framework along with theories covering organizational, identity, and systems streams of research situated the study. A mixed methods approach was conducted in two phases: a 28-item survey and 1.5-hour interviews, which helped contextualize and explain survey findings. The multiple regression procedure examined the relationship among three variables: person-organization fit, military identity, and organizational commitment with military identity was included as a moderator. Results indicated a positive relationship between person-organization fit and organizational commitment. Contrariwise, results indicated military identity's relationship between the variables was found to be not statistically significant. Although the moderation effect of military identity was not found to influence the relationships, interviews with veterans indicated a strong connection to their military identity. Veterans shared negative and unpredictable transition stories, positive transition stories, feelings of isolation, and held prevailing military goals, while reporting a lack of backing from support agencies. Veterans perceived differences between the military and civilian environments, veteran turnover and organizational commitment were found to connect and military values and military identity were found to have connections as well. Recommendations for improving military to civilian setting transitions for …