Digital Commons Network^™

Evaluating The Effectiveness Of A Fully Immersive Esol Elementary Program: A Mixed-Methods Study, Equitia D. Armour

Dissertations

With the enrollment of students who are English Language Learners (ELL) steadily rising across the United States, this research sought to understand how immersive models support both language acquisition and academic achievement. This study examined the effectiveness of a fully immersive English Speaker of Other Languages (ESOL) program in one elementary school. The purpose was to identify the qualities of successful ESOL programming, and the conditions needed for sustained growth. The primary research question for this study was: What are the qualities of a successful fully immersive ELL elementary program? Using a mixed-methods design, data were drawn from surveys, interviews, …

Evaluating The Perceptions, Barriers, And Impact Of Positive Behavior Interventions And Supports (Pbis) In Grades K-12, Serena Sowin

Dissertations

Positive Behavior Interventions and Supports (PBIS) is designed to promote positive behaviors and prevent behavioral challenges. Despite widespread adoption, implementation fidelity, especially at Tier 2 and Tier 3 levels, remains inconsistent, impacting students who require the most intensive support. This study was conducted in one middle school. The purpose of the program evaluation was to investigate the perceptions of, and barriers to, PBIS implementation, with a specific focus on evaluating the impact on student behavioral and disciplinary outcomes, identifying the training and support provided to educators, and examining how data are used to drive decisions. Overarching research questions assessed educator …

The Role Of Sex And Genetic Background In Early Life Stress Effects On Locus Coeruleus Physiology And Related Cognitive And Affective Behaviors, Savannah Grace Brannan

Dissertations

Adverse Childhood Experiences (ACEs) have been associated with many neurodevelopmental and affective disorders, including attention deficit hyperactivity disorder (ADHD) and generalized anxiety disorder (GAD), with more exposures increasing negative risks. Sex and genetic background are biological variables involved in adverse psychiatric outcomes due to ACE exposure(s). Few preclinical studies have properly powered each sex to determine the interaction between sex and genetics on stress-impacting behavior, especially in early life. Females generally have an increased prevalence of stress-related psychopathologies beginning after adolescence, indicative of the adolescent time period as a female-specific sensitive period. To understand the underlying neuronal components responsible for …

A Joint Mindfulness And Growth Mindset Intervention For Reducing Math Anxiety For Pre-Service Elementary Teachers, Evan Czysz

Dissertations

Pre-service elementary teachers (PSTs) have often exhibited high levels of math anxiety, which can negatively influence their confidence, learning, and future teaching in mathematical settings. The purpose of this phenomenological case study was to understand the influences an intervention focused on growth mindset and mindfulness-based practices has on preservice elementary school teachers’ perceptions of mathematics at a mid-sized university in the Rocky Mountain Region of the United States, and sought to answer the following questions: Q1 Does a joint mindfulness-based and growth mindset intervention impact pre-service teachers’ levels of math anxiety? Q2 What were pre-service elementary teachers’ experiences with a …

Making Meaning Of The Dissertation Process: An Interpretative Phenomenological Analysis Study Exploring Counselor Education Students’ Experiences And Beliefs About The Traditional Dissertation Process, Brianne Dixon

Dissertations

The traditional dissertation is a cornerstone of doctoral education yet is a process that is surprisingly under-researched. The purpose of this interpretative phenomenological analysis (IPA) study was to explore the lived experiences of doctoral students in counselor education and supervision (CES) programs with the dissertation process. More specifically, this study sought to understand the meaning seven doctoral students made of the process and this study explored counselor educator doctoral students’ beliefs about the traditional dissertation process after they completed the dissertation This study explored three research questions. Q1 What were the lived experiences of Counselor Education and Supervision (CES) doctoral …

Preschool-To-Kindergarten Transition For Students With Autism Spectrum Disorder, Kristin Claire Duncan

Dissertations

The transition from preschool to kindergarten leads to changes for students and their families regarding services, providers, and environments. The purpose of this phenomenological study was to explore how primary caregivers of children with autism spectrum disorder (ASD) perceived the transition from preschool to inclusive kindergarten. This study focused on the concerns, barriers, and experiences caregivers encountered throughout the transition process. By understanding caregivers’ perspectives, the study aimed to identify ways to improve kindergarten transition practices for future families. Based on existing literature, areas in need of investigation included the following: (a) how success of preschool-to-kindergarten transition impacts changes to …

Culturally Responsive Functional Communication Training For Asian Families: A Single-Subject Design Study, Guofeng Shen

Dissertations

Children with disabilities, such as autism spectrum disorder (ASD) and intellectual disability (ID), frequently experience challenges related to social communication and are at increased risk of exhibiting challenging behaviors (CBs), particularly when they lack effective means to express their needs and desires. Functional communication training (FCT) is an evidence-based intervention shown to reduce CBs by teaching functional communication skills. However, limited research has explored the use of culturally responsive adaptations of FCT (CRFCT), particularly in the context of training parents from culturally, linguistically, and economically diverse backgrounds. This study addressed this gap by examining the effects of culturally responsive FCT …

A Phenomenological Study Of The Lived Experiences Of Administrators, Teachers, And School Personnel With Justice-Involved Students, Kandra Cosby

Dissertations

This hermeneutic phenomenological research study examined the experiences of six educational professionals, including administrators, teachers, and support staff, as they supported justice-involved students in their reintegration into traditional public schools. The study was based on Bronfenbrenner’s ecological systems theory, Hirschi’s social control theory, and Glasser’s choice theory. Semistructured interviews were used and revealed six themes: (a) fighting systems while trying to serve students, (b) relationships as safety nets, (c) protecting students from the stigma of judgment, (d) fighting bureaucratic silos, (e) philosophy wars in action, and (f) seeing the whole child. The findings indicated successful reintegration was less connected to …

Civics Teachers’ Perceptions Of Disciplinary Literacy Strategies That Use Primary Sources: A Case Study, Whitney Williams

Dissertations

This study has been designed as a case study to examine teachers’ perceptions of document-based strategies when combined with primary sources as pedagogical tools. The participants were ninth grade civics teachers. Semi-structured interviews, focused observations, and artifact collection were the sources of collected data. As the researcher, my constructivism guided this study through the lens of Albert Bandura’s social cognitive theory (SCT). Therefore, the participants’ perception will be interpreted through SCT concepts such as personal influences, behavioral influences, and environmental influences. Findings show a handful of disciplinary literacy strategies that occurred most often across all participants. Teachers valued an emphasis …

The Interplay Between Structure And Teacher Agency In The Detracking Of Algebra 1: A Qualitative Case Study, Kristine Norris

Dissertations

This single qualitative case study examined how detracking Algebra 1 at Mountainview High School (pseudonym) restructured the course’s rules and resources and how teachers exercised agency in response. Guided by Giddens’ structuration theory and Weis and Fine’s critical bifocality, the study explored how institutional structures both shape and are reshaped by teacher action within broader systems of inequality. Participants were seven Algebra 1 teachers involved in the first two years of detracking. Data was gathered using semi-structured interviews and analysis focused on two research questions: (1) In what ways did detracking alter the structures of Algebra 1 courses, and (2) …

Imagine The Peace: Exploring The Intimacy Of Imagined Intergroup Contact In Kosovo, Eric Manley

Dissertations

Peacebuilders have utilized positive intergroup contact in various settings to help groups encounter each other. I implemented three different intimate imagined contact scenarios in Peja, Kosovo with Albanian and Serb participants. I conducted this research to understand how multiple intimate social settings could impact individuals’ encounters with the outgroup during each imagined scenario, thus gathering better operationalization efforts regarding intimacy and imagined contact. Using written responses, interviews, and one-year follow-up interviews, the café and workplace scenarios created a positive experience for most participants, and while half of participants had a positive experience with the fiancé scenario, many more had negative …

Raise Your Digital Hand – Multilingual Learner Student And Teacher Perceptions Of Live Digital Feedback, Naveed Khan

Dissertations

Teachers of Multilingual Learners (MLs) must support students with varying English proficiency as they work toward meaningful academic progress. One promising support is live digital feedback, which can be multimodal—written, typed, drawn, or audiovisual—and serves as an added scaffold as MLs work within their zone of proximal development (ZPD). This qualitative case study examined ML student and teacher perceptions of live teacher and peer digital feedback in one-to-one (1:1) classrooms, grounded in sociocultural theory, effective feedback, and multimodality. The research questions focused on the types of feedback provided by teachers and peers and how ML students—both recipients and peer helpers—and …

Effects Of Commission Errors During Prompting On Skill Acquisition And Maintenance, Molly K. Mutchler

Dissertations

Procedural fidelity refers to the extent to which procedures are implemented as intended. Engaging in procedural fidelity errors can lead to detrimental outcomes during skill acquisition and maintenance. The purpose of this study was to parametrically evaluate and compare two commission errors during prompting procedures using an arbitrary tacting task taught to college-aged students. Participants learned to tact four sets of arbitrary pictures and names. Prompting errors consisted of either providing the correct letters for a name in an incorrect order (i.e., an error within a component of the name) or providing the correct name for another picture (i.e., an …

Environmental Beliefs Among Evangelical Leadership, Jeffrey Stark

Dissertations

There has been consensus among climate scientists for over a decade about the reality of human caused climate change. Even with this consensus, the public understanding of this issue remains divided based on factors generally unrelated to the science. Evangelical Protestants are one group which consistently polls as more skeptical of climate change. This is true not only when compared to the general population but also when compared to other religious demographics. Most large-scale surveys of evangelicals assume the demographic to be a monolith and do not attempt to break the demographic down further. In this mixed methods study, we …

An Investigation Of Paleoclimate Through A Sedimentological Lens In The Gulf Of Mexico And Western North Pacific, Sarah Monica

Dissertations

This dissertation explores the use of sediment cores as proxy data for the reconstruction of paleoclimatic and environmental conditions. Human-caused climate change is leading to dramatic shifts in the global climate. As the instrumental record of climate is relatively short compared to the amount of time Earth has experienced weather, this work aims to extend our knowledge of climate beyond the instrumental record, thereby improving our holistic understanding of the climate system. In Chapter one, sediment cores from the central Texas inner shelf are used to produce a record of intense tropical cyclone (TC) activity over a ~4500-year period. X-Ray …

Processing-Driven Crystallization, Morphology, And Mechanics In Pekk Composites, Nicholas Ryan Enos

Dissertations

This dissertation aims to understand how thermoplastic composites can be processed at faster manufacturing rates while identifying how processing variables influence crystallization, morphology, and mechanical properties. Throughout this dissertation, the influence of nano-scale additives, carbon fibers, rapid cooling, shear, and molecular weight on polymer physics, crystallization, morphology, and mechanics is investigated.

The inclusion of carbon nanotubes and graphene nanoplatelets accelerated crystallization, increased nucleation density, reduced lamellar thickness, and shifted governing Hoffman-Lauritzen growth regimes in PEKK. Velisaris-Seferis modelling identified a surface-induced nucleation mechanism in PEKK nanocomposites, and fast scanning calorimetry allowed for the study of rapid cooling rates, helping to identify …

Fostering Connection And Empowerment: Amplifying Women’S And Indigenous Voices Through Place-Based Education, Inclusive Narratives, And Empathy Building, Paige N. Jones

Dissertations

The diverse experiences, perspectives, and identities of people across groups shape history. Educators and heritage professionals bear the responsibility of teaching historical content in ways that ensure all feel represented, valued, and safe. Despite these aims, the experiences and contributions of women and Indigenous Peoples have long been underrepresented in social studies curricula and heritage programming.

This dissertation integrates two complementary studies that examine how harnessing the power of place and centering the narratives and oral histories of underrepresented groups can advance connection and empowerment through educational experiences. The first study utilized focus group interviews with educators and heritage professionals …

The Psychology Of Telework, Emily K. Lane

Dissertations

The growth of telework has reshaped the modern workplace, changing how employees experience connection, fairness, and satisfaction. This dissertation examined the psychological dynamics of teleworking by exploring how the extent of remote work influences job satisfaction through feelings of professional isolation. It also investigated how perceptions of procedural, informational, and interpersonal justice, as well as employee choice and telework normativeness, shape these relationships. Grounded in organizational justice theory (Colquitt, 2001), the study used a two-wave, pseudo-cross-sectional survey of 506 teleworkers. Results indicated that professional isolation did not mediate the relationship between telework extent and job satisfaction when fairness perceptions were …

Understanding The Lived Experience Of Mental Health Following An Alpha-Gal Syndrome Diagnosis: A Phenomenological Study Grounded In Maslow’S Hierarchy Of Needs, Heather L. Hargis

Dissertations

Alpha-gal syndrome is a tick-borne food allergy that triggers delayed allergic reactions to mammalian products and profoundly alters daily life. While growing research examines the physiological aspects of alpha-gal syndrome, little is known about its psychological impact. This phenomenological study explored the lived experiences of individuals with alpha-gal syndrome to understand how the condition influences mental health through the lens of Maslow’s Hierarchy of Needs. Data was collected through semi-structured virtual interviews with adults medically diagnosed with alpha-gal syndrome. Thematic analysis revealed significant challenges in meeting Maslow’s lower-tier needs—physiological, safety, and love/belonging—due to dietary restrictions, medical uncertainty, social isolation, and …

Building Bridges: Co-Producing Philanthropic Public-Private Partnerships For The United States National Park System, Jason S. Northern

Dissertations

The sustainability of America's National Park System increasingly relies on public–private partnerships that leverage private philanthropy. While the National Park Foundation provides national support, local Park Partner nonprofit organizations, like the Gateway Arch Park Foundation, are key to community-level fundraising and advocacy. This qualitative study of the St. Louis Arch grounds renovation examines how this public–private partnership structure influences donor motivation, trust, and engagement. Guided by Social Exchange Theory and Resource Dependency Theory, this research explores the relational and structural dynamics of this philanthropic co-production including reciprocal donor motivations and interdependence among public, private, and nonprofit partners. Fifteen semi-structured interviews …

Impact Of Video Laryngoscopy On Pediatric And Neonatal Transport Intubation Success, Brooke A. Shahriary

Dissertations

Abstract

Problem: Airway management is the primary intervention for halting clinical decompensation in pediatric and neonatal patients. In cases where patients require invasive support, endotracheal intubation (ETI) is the preferred method of airway securement. Unfortunately, ETI is a challenging skill to develop, especially when caring for children and infants, resulting in increased rates of failed ETI attempts which can result in worse outcomes. ETI success rates in the population of interest have fallen in recent years, nationally and among the clinicians in this project. The institution established a goal for first pass success (FPS) and video laryngoscope (VL) was introduced …

The Effects Of Learning Environment Resources And Psycap On Student Burnout And Outcomes, Elisandra Rodriguez Moreno

Dissertations

This study examined links between learning environmental resources (i.e., social support and feedback environment), burnout, and student outcomes (i.e., satisfaction and academic performance) among 198 graduate healthcare students. The study also investigated whether Psychological Capital (PsyCap) moderated these relationships. Social support and feedback did not predict overall burnout, but both were significantly linked to the burnout dimensions, specifically: emotional exhaustion, depersonalization, and academic efficacy. PsyCap did not moderate most relationships, yet it was consistently associated with lower levels of burnout and higher satisfaction. One exception emerged—for social support and depersonalization, PsyCap served as a compensatory resource, where students with lower …

Assessing The Role Of Social Media As A Complementary Source In Pharmacovigilance: Insights From Faers, X (Formerly Twitter), And Askapatient Data Across Multiple Drug Classes, Nwanneka Okere

Dissertations

Background: Adverse drug reactions (ADRs) pose significant public health challenges yet remain substantially underreported in traditional pharmacovigilance systems. Social media platforms and patient-reported outcome forums have emerged as potential complementary sources for capturing real-time patient experiences with medications, but their integration with established surveillance systems remains underexplored.

Purpose: This study examined ADR reporting patterns across FDA Adverse Event Reporting System (FAERS), X (formerly Twitter), and Askapatient to evaluate whether patient-generated digital data can complement traditional pharmacovigilance systems for enhanced drug safety monitoring.

Methods: An explanatory sequential mixed-methods design analyzed 107,753 reports representing 289,740 individual ADR occurrences for …

Evolution Of A New Strategic Orientation In The Ai Era: Exploring The Determinants Of Ai Orientation, Sreelakshmy Geethakumari

Dissertations

The field of AI has undergone significant evolution over the past few decades. While AI is heralded as one of the most transformative technologies, scholars caution that its strategic impact may still not be fully realized. Given the strategic importance of AI in today's firms, it is essential to consider AI as a strategic orientation and understand its determinants in detail. Our study examines AI Orientation, defined as a firm's deliberate application of AI technologies to achieve its strategic objectives. Drawing on multiple theoretical perspectives, this study investigates the determinants that shape a firm’s AI orientation. This study employs a …

Trustworthy Federated Learning Framework For Secure, Efficient, And Quality-Aware Distributed Ai, Asadullah Tariq

Dissertations

Federated Learning (FL) emerged as a significant advancement in the field of Artificial Intelligence (AI), enabling collaborative model training across distributed devices while maintaining data privacy. As the importance of FL and its application in various areas increased, addressing trustworthiness issues in its various aspects became crucial. In the FL process, clients contribute updates computed on their local datasets, which the server aggregates to iteratively refine the global model. However, not all client data may be relevant to the learning objective, and incorporating updates from irrelevant data can harm the model's performance. The selection of training samples significantly impacts model …

Institutional Belonging And College Success In A Neoliberal Environment, Alicia C. Figueroa

Dissertations

As higher education evolves in response to various pressures, adult learner graduate students, particularly women who are mothers, find themselves navigating a complex landscape shaped by neoliberal ideals of belonging. This research aimed to explore the multifaceted notions of belonging within a neoliberal environment and provide insight into a growing sector of this college student population. The project sought to illuminate the unique experiences of female adult learner graduate students, especially mothers, as they increasingly return to college post-COVID-19. Employing a qualitative phenomenological research design, this study gathered diverse narratives from this sub-population. The methodology utilized purposeful sampling for semi-structured …

Client And Clinician Priorities For Same-Day Prep And Doxy-Pep Awareness, Uptake, And Persistence In Primary Care, Nathaniel Albright

Dissertations

Approximately 70% of all new human immunodeficiency virus (HIV) infections are among populations of sexual and gender minorities (SGM) and are primarily attributable to sexual contact. Currently, only 26% of the U.S. population who would benefit from HIV preexposure prophylaxis (PrEP) are prescribed this effective biomedical HIV prevention strategy. Biomedical prevention strategies for bacterial sexually transmitted infections (STI) like doxycycline postexposure prophylaxis (doxy-PEP), are a vital component to the successes of ending the HIV epidemic given the well-known association between STIs and risk for HIV infection. In this multiple methods study, we leveraged group concept mapping and conducted focus groups …

Exploring The Experience Of Nursing Students During Their Community Health Nursing Clinical Placement At Schools, Lina Ghosn Nouwayhed

Dissertations

Community health nursing is an exciting, challenging, and evolving field that creatively integrates various areas of nursing practice with public health knowledge (Stanhope & Lancaster, 2016). Learning in practical settings is invaluable for student nurses; that is why clinical placements account for 50% of nursing curriculum requirements (Henderson, 2011). At Makassed University of Beirut, the community nursing practicum takes place in schools, with school nurses serving as mentors during these placements.

This research study aims to:

• Explore the experiences of student nurses during community clinical practice.
• Develop guidelines to enhance learning during community clinical practice.

The study sample consisted of …

Analyzing Sea Level Rise Scenarios Impact On The Mobility, Infrastructures, Environment Of Abu Dhabi And Defining Solutions By Creating A Digital Twin Using Gis And Game Engine, Justine Sylviane Lucie Sarrau

Dissertations

This dissertation investigates the potential impact of future sea level rise (SLR) scenarios on the city of Abu Dhabi. With climate change, many coastal towns are at risk of experiencing this type of natural hazard. Currently, no precise scenario simulations have been developed, mainly due to the use of low spatial resolution elevation data. Additionally, the difficulty in understanding the real impacts persists when analyses rely solely on traditional cartography and GIS methods. This dissertation aims to advance the field by offering a new approach, which involves creating a comprehensive dynamic 3D simulation with dynamic flowing water. This model, defined …

Ai-Enabled Multi-Layer Security Operations: A Combined Siem, Ids, And Threat Intelligence Model For Adaptive Cyber Defense, Mohamad Khayat

Dissertations

This dissertation presents a comprehensive framework for the evolution of Security Operation Centers (SOCs) through the integration of advanced artificial intelligence (AI), blockchain, and optimization techniques. Motivated by the increasing complexity of cyber threats and the limitations of traditional reactive SOC strategies, this work begins with a systematic literature review that identifies critical gaps in current SOC operations. Based on these insights, a reference architecture is proposed to guide the integration of intelligent components into SOC environments. To address the challenge of secure and trustworthy information sharing, a blockchain-based threat intelligence platform is developed, leveraging Byzantine Fault Tolerance and Zero-Knowledge …