Digital Commons Network^™

Reflecting On Psychotherapy In Adolescence: A Qualitative Analysis Of Processes Of Change, John Parigger

Electronic Theses and Dissertations

There is a sharp increase in anxiety and depression symptoms in adolescence, and many forms of psychotherapy are shown to be effective. However, most research has examined average effects for manualized treatments that address multiple areas of functioning, which makes it difficult to determine how psychotherapy causes positive change. Process-based therapy postulates that all psychotherapies work through promoting adaptive biopsychosocial patterns of behavior (i.e., processes of change). Research has increasingly focused on the process-based therapy model, and there is a need for qualitative studies to incorporate lived experience into our understanding of change processes. The current study utilized the process-based …

Tennessee General Education Preschool Teachers’ Perceptions Of Their Preparedness To Teach Young Children With Disabilities, Misty M. Moody

Electronic Theses and Dissertations

Under the Individuals with Disabilities Education Act (IDEA), local education agencies (LEAs) must educate young children with disabilities in the least restrictive environment (LRE) while ensuring opportunities to learn alongside their non-disabled peers. As inclusive opportunities for preschool-aged children with disabilities continue to expand, general education preschool teachers play an important role in providing instruction that meets the diverse needs of all children. However, limited research has examined general education preschool teachers’ perceptions of their preparedness to teach young children with disabilities, particularly in Tennessee.

This qualitative study explored Tennessee general education preschool teachers’ perceptions of their preparedness to teach …

Beyond Symptoms: Examining Perinatal Mental Health Care Among Black, Indigenous And People Of Color With Polyendocrine Metabolic Ovarian Syndrome, Vinaya Thomas

Electronic Theses and Dissertations

Perinatal mood and anxiety disorders (PMADs) are as a public health concern in the United States. Individuals from minoritized racial/ethnic groups face a significantly elevated risk of maternal morbidity, mortality, mental health disorders, and associated adverse outcomes. Emerging studies also reveal a higher likelihood of experiencing perinatal mental health concerns in individuals with polycystic ovarian syndrome (PCOS), currently known as polyendocrine metabolic ovarian syndrome (PMOS). People who identify as Black, Indigenous, or a person of color (BIPOC) face unique healthcare challenges given the added structural and social burdens. This online survey study aimed to 1) understand the relationship between PMOS …

Kinesiology Department Chairs’ Perceptions Of Their Training And Preparation, Kason O’Neil

Electronic Theses and Dissertations

Department chairs are responsible for leading academic departments in higher education.  These individuals regularly make important decisions regarding such things as managing faculty and academic programming, overseeing budgets, and supporting student needs. Despite these responsibilities, many people become department chairs without receiving formal leadership training. This study explored how kinesiology department chairs across the United States viewed their preparation for the role and the importance of leadership training. A total of 111 department chairs completed an online survey about their background, previous training, and the importance of training for different administrative responsibilities. The results showed that most chairs had little …

Perceptions, Attitudes, And Experiences Of Persons Who Work In Forensic Mental Health Systems, Abigail Wiser

Electronic Theses and Dissertations

The forensic mental health system serves clients with dual needs —serious mental health concerns like psychosis and suicidality, and management of risk. Experiences and perceptions of professional and direct care staff may impact daily and therapeutic interactions and client success. These experiences may be marked by stigma, such as beliefs about what led to hospitalization, treatability of mental health concerns, and intentionality of behavior. Understanding this stigma, as well as the role of vicarious trauma, workplace burnout, and other relevant individual factors, may help us understand staff experiences and guide training, thus improving client care. 146 staff members across three …

Weathering The Divide: Social Determinants, Neighborhood Context, And Systemic Lupus Erythematosus Among African American Women, Vanessa Cl Morman

Electronic Theses and Dissertations

Background: Systemic lupus erythematosus (SLE) disproportionately affects African American women and contributes to racial health disparities in the United States. Although genetic susceptibility influences disease risk, growing evidence suggests that social determinants of health (SDOH), including neighborhood conditions, structural racism, and socioeconomic disadvantage, contribute to disease development and progression. Epigenetic mechanisms may provide a biological pathway linking adverse social conditions to chronic disease disparities. This dissertation examined the influence of SDOH on SLE disparities through evidence synthesis and empirical investigation to inform public health practice and policy.

Methods: This integrated learning experience consisted of three complementary manuscripts. Aim 1 was …

Exploring Competitive Dynamics Between Pseudomonas Baetica And Salmonella In A Polymicrobial System, Braxton E.M. Stout

Electronic Theses and Dissertations

The global rise in antimicrobial resistance has catalyzed a greater focus on polymicrobial research aimed at characterizing microbial interactions and uncovering new therapeutic strategies. Though it has long been of interest, environmental soil-derived bacteria remain largely under-represented in research and thus uncharacterized in this field. This project aimed to identify soil microbes that display inhibitory mechanisms to potential nosocomial pathogens. Soil sample S1S3-2 displayed inhibitory phenotypes toward numerous bacteria and was identified as Pseudomonas baetica. In both planktonic and biofilm growth, P. baetica was able to inhibit Salmonella arizonae through a contact-dependent and temperature-dependent manner. Screening of a transposon insertion …

Phytochemical And In-Vitro Cytotoxic Analyses Of Flavonoid Species Isolated From Chromolaena Leivensis, Luke A. Bryant

Electronic Theses and Dissertations

As a leading cause of death worldwide, cancer and its treatments remain a primary source of interest among researchers. Modern studies are looking into bioselective cytotoxicity to create new chemotherapies that do not have the same harsh side effects as those we use today. Natural product research has a promising future for the development of such treatments. Specifically, polar flavonoids may be the key to a bioselective treatment. Such flavonoid species are native to plants, often within flower petals or within the body. A natural antioxidant, they are designed not to harm healthy cells. This study focuses on the plant …

Leveraging Mammal Mycophagy To Determine Environmental Drivers Of Truffle Diversity, Brittany Hartsock

Electronic Theses and Dissertations

Many mycorrhizal fungi are hypogeous (truffle-forming), producing underground fruiting bodies. Studying truffles is inherently challenging due to their hidden nature. However, mycophagous mammals provide a unique opportunity to study hypogeous fungi because they rely on truffles as a food source. Although several truffle species have recently been described in the southern Appalachian region, their fruiting patterns remain poorly understood. To address this, we quantified truffle richness and spore loads from 670 Peromyscus scat samples collected across 42 sites spanning an environmental gradient during 2024 in the Blue Ridge Mountains of East Tennessee. We found that truffle richness and spore abundance …

Computational Studies Of Triplet State Formation In Zinc Dipyrrin Complexes, Reuben Kwabla Adigbli

Electronic Theses and Dissertations

Zinc dipyrromethene complexes are promising earth-abundant photosensitizers due to their strong visible-light absorption and tunable excited states. To rationally design them for photocatalysis and photodynamic therapy, a molecular-level understanding of triplet-state formation is needed, but details of intersystem crossing remain unclear. To study the effect of π-extension, we synthesized an indole-substituted zinc dipyrrin complex: the dipyrromethane ligand was prepared from indole and mesitaldehyde, oxidized to the dipyrromethene, then coordinated with zinc. DFT and TD-DFT calculations determined ground and excited-state geometries and energies in different solvents, modeled absorption spectra, and visualized charge distributions. The results show how solvent polarity shifts energies …

An Assessment Of Accessibility And Affordability Of Inpatient Psychiatric Care In Tennessee, Kailee Havrda

Electronic Theses and Dissertations

Introduction: Access to mental health has seen changes over the past decade, but little research and attention have been given to access to inpatient psychiatric facilities. Inpatient psychiatric care is crucial for patients experiencing mental health emergencies who need immediate access to care. Gaps in spatial accessibility, affordability, and the access and assessment process were identified due to a lack of available information in the field.

Methods: Secondary data from the Tennessee Department of Health were used to assess financial accessibility through payer source charges and patient encounters, as well as through mapping of inpatient psychiatric facilities and conducting drive …

Kindergarten Teachers’ Perceptions Of Instructional Approaches For Teaching Sequencing Concepts: Worksheet, Hands-On, And Beebot-Integrated Lessons, Savannah P. Partin

Electronic Theses and Dissertations

The purpose of this qualitative multiple-case study was to explore kindergarten teachers’ perceptions of three instructional approaches for teaching sequencing concepts: worksheet-based instruction, hands-on manipulative instruction, and BeeBot-integrated instruction. Sequencing is a foundational early literacy skill that supports reading comprehension, story retelling, and understanding the order of events. Although sequencing is commonly taught through traditional instructional methods, limited research has examined how kindergarten teachers perceive the use of educational robotics as a tool for literacy instruction. The study was guided by constructivist theory, sociocultural theory, and developmental systems theory. Participants included six kindergarten teachers from a public elementary school in …

Organizational Systems, Support Structures, And Principal Retention In Urban Secondary Schools: A Job Demands And Resources Analysis Of Belonging And Isolation, Meredith L. Perry

Electronic Theses and Dissertations

Principal turnover remains a challenge in high-poverty secondary schools, where leadership stability is critical to school improvement and student success. Although factors associated with principal attrition have been studied, less is known about how district-level systems and support structures shape principals’ experiences of connection, belonging, and professional isolation. This qualitative multiple-case study was conducted within a program evaluation context to examine how district policies, processes, and support structures functioned as job demands and job resources influencing principals’ experiences and retention decisions within a large urban school district. Guided by the job demands–resources (JD-R) framework, the study included four secondary principals …

Navigating Leadership Transitions In Academic Affairs At Small Historically Black Colleges And Universities In The Southern United States: A Qualitative Study, Marquita Renee Mitchell

Electronic Theses and Dissertations

This study explored the specific problem that necessitates the functionality of departmental leadership, its outcomes, and emphasized leadership transitions. Researching leadership transitions can potentially enhance our understanding of how small HBCUs, particularly HBCUs with a student population of fewer than 5,000, can effectively navigate, ensuring the continuity and sustained success of the academic affairs department within the Southern U.S. region. To address this gap, this study engaged narrative methods while employing transformational leadership theory as a theoretical lens to explore the immediate and long-term impacts of leadership transitioning on strategic initiatives, staff morale, and outcomes within the academic affairs department, …

Cultural Humility In The Workplace: A Causal-Comparative Study Of Foreign And Local Hire Employees In International Education, Natalie A. Ortiz

Electronic Theses and Dissertations

Cultural humility is recognized as a framework for fostering respectful relationships in culturally diverse workplaces. However, limited research has examined cultural humility within international education in regard to workplace dynamics and power imbalances that may exist between foreign and local hire educators. The purpose of this quantitative causal-comparative study was to examine differences in perceived cultural humility levels between foreign and local hire employees in PreK-12^th grade private international schools in Central Asia and Eastern Europe. The study also examined whether years of international educational experience and the number of international educational assignments influenced perceived cultural humility levels. Data …

Barriers To Veterans Affairs (Va) Healthcare Utilization: Exploring The Underutilization Of Va Healthcare Services Among Rural, West Texas Veterans, Adam G. Rodgers

Electronic Theses and Dissertations

Rural veterans forgo Department of Veterans Affairs (VA) healthcare at disproportionate rates, and this study found that the primary barrier is not enrollment but utilization. Seven of the eight participants were already enrolled yet remained functionally outside the system. The purpose of this qualitative single-case study was to explore why rural West Texas veterans forgo and underutilize Veterans Health Administration (VHA) healthcare. Two research questions examined the perceptions contributing to that decision and the barriers preventing access. Andersen’s behavioral model of health services use provided the framework. Semistructured virtual interviews with eight rural West Texas veterans were analyzed using Braun …

The Role Of Hardiness On Leadership In Big-Box Retail Managers, Cari Alvarez

Electronic Theses and Dissertations

Retail managers face constant customer demands, unpredictable staffing, and high-pressure performance expectations, yet little research has examined how these leaders sustain effectiveness under such conditions. This qualitative descriptive study explored how big-box retail managers in the United States described their development and use of hardiness across the constructs of control, commitment, and challenge to lead in a complex retail environment, an area not previously examined in the literature. Hardiness theory served as the theoretical framework for the study. Data were collected through 12 semistructured interviews with retail managers and an online questionnaire completed by 45 qualifying respondents. Interview data were …

Navigating The Political Waters Of Rural Superintendency In Texas, Brian D. Aiken

Electronic Theses and Dissertations

Superintendents frequently report job-related stress and politics as primary reasons for early resignations. Rural superintendents and school boards engage extensively with community stakeholders, intensifying the impact of local political influence on decision-making. The purpose of this study was to describe how five rural superintendents in Texas experience the influence of political will on decision-making and, subsequently, on their well-being. Perceptions of sources of political influence and the strategies used by superintendents to navigate political influence were investigated. Participant data were gathered through district documents and semistructured interviews. The research captured the challenges the rural superintendents face. The participants in this …

Rural Elementary School Principals’ Perceptions Of Leadership Behaviors As An Influence On School Climate, Annalysa L. Elledge Dr.

Electronic Theses and Dissertations

The purpose of this qualitative study was to explore how principals in rural elementary schools in the southern United States perceived their leadership behaviors as influencing school climate. The study was guided by the authentic leadership model, with a focus on compassion, relationships, values, and self-discipline. A qualitative exploratory design was used to examine the experiences and perceptions of certified principals with at least 3 years of experience leading rural elementary schools. Purposeful sampling resulted in a sample of 26 principals. Findings indicated that principals perceived authentic leadership behaviors as important contributors to positive school climate in rural elementary schools. …

Don’T Let Us Down: A Phenomenological Study Of African American Employees’ Perceptions Regarding The Benefits Of Professional Development In Student Affairs, Courtney Nicole Demings

Electronic Theses and Dissertations

The experiences of student affairs professionals are critical to the success of higher education, allowing for a concentrated exploration of African American student affairs professionals who are often employed in 2-year U.S. community colleges. The general problem was that African Americans may leave student affairs in community colleges if they do not perceive supervisory support for professional development and, in turn, career advancement. The purpose of this dissertation was to understand and interpret their lived experiences, illuminate the barriers to their career advancement, and discuss the impact of supervisory support. As such, this action research employed qualitative research through the …

Harkness Seminars In The Humanities, Sarah S. Novlan

Electronic Theses and Dissertations

This participatory action research study explored the effects of Harkness seminars on students’ cognitive, affective, and metacognitive learning in secondary humanities classes. Educators need an effective, flexible, and adaptive method to promote student learning beyond superficial content acquisition. With the decoupling of virtue formation from knowledge acquisition, knowledge gaps from COVID-19 lockdowns, and the rise of artificial intelligence in student plagiarism, a proven method to address all aspects of student formation is needed. Using a participatory action research framework for this qualitative study, conducted at an independent K–12 school site in Texas, the researcher interviewed six secondary humanities teachers over …

The Low Participation Of Women In The Truck Driving Industry, Aurora Floodine

Electronic Theses and Dissertations

Women remain underrepresented in the United States trucking industry, particularly in leadership roles, despite ongoing efforts to increase workforce diversity and address persistent driver shortages. This qualitative phenomenological study explored the lived experiences of female trucking professionals who began their careers as truck drivers and later advanced into leadership positions. The study examined the strategies that facilitated women’s progression into leadership and the systemic barriers that may limit their advancement within the trucking industry. Semistructured interviews were conducted with 11 female trucking professionals, and the resulting data were analyzed using thematic analysis. Six themes emerged from the findings: (a) independence, …

School Leadership And Collaboration: A Case Study Of Leaders’ Experience Implementing Vertical Alignment Practices, Tara R. Wehmeyer

Electronic Theses and Dissertations

Changing student demographics within a large elementary school increased the need for collaboration between leadership and staff as they implemented a wide range of initiatives to support student learning. Grounded in the transformational leadership theoretical framework, this exploratory case study sought to systematically observe and gather knowledge about the experiences of campus leaders as they implement vertical alignment teams to foster a collaborative approach while instituting required initiatives. The sample included seven campus leadership team members and data collection utilized transcribed semistructured interviews, debriefing sessions after vertical alignment team meetings, meeting observations, and a researcher’s journal. All data were analyzed …

Enterococcus Abundance, Distribution, And Environmental Controls At A Sandy Shoreline, South Carolina, Usa, Helen Kehoe

Electronic Theses and Dissertations

Water quality monitoring crucially protects the health of beachgoers around the world. However, water-adjacent sediments, such as sandy beaches, are known to harbor harmful bacteria, yet are not monitored despite their intensive recreational use. This project monitored the abundance of fecal indicator bacteria (FIB), specifically Enterococci, in sandy beach sediments at beaches routinely monitored for water quality in Myrtle Beach and North Myrtle Beach, South Carolina. Surface sediment core sampling (0-5 cm) in the swash zone was conducted once per month for 4 months at 24 beaches in tandem with state-accredited surf-water FIB monitoring using IDEXX’s Enterolert test (Standard Method …

Spatial Variation In Resource Use And Species-Level Trophic Niches Of White And Brown Shrimp In North Inlet–Winyah Bay, South Carolina, Josie Bryan

Electronic Theses and Dissertations

Atlantic white (Penaeus setiferus) and brown shrimp (Penaeus aztecus) are ecologically and economically important species in the southeastern United States, supporting coastal food webs and valuable commercial fisheries. To understand their trophic dynamics in the North Inlet-Winyah Bay estuary, we conducted a spatial and temporal analysis using carbon (δ¹³C), nitrogen (δ¹⁵N), and sulfur (δ³⁴S) stable isotopes to evaluate trophic position and basal source contributions across three habitat types (river, bay, and marsh). Linear models were used to evaluate the effects of size (rostrum–carapace length, RCL, in mm), habitat, and species on trophic position, as well as the effects of habitat …

Comparison Of River Plume Classification Methods Using In-Situ Data, Payton Merica

Electronic Theses and Dissertations

River plumes transport terrigenous materials into the ocean, such as nutrients, pollutants, or sediment. These plumes can be separated into regions, including the source region, near-field, mid-field, and far-field, historically defined broadly by the governing forces in each region. Existing methods for classifying these plume regions are limited and often only take into account a subset of influencing factors. This study seeks to compare prior plume region classification methods, such as the Froude number and Rossby radius of deformation, to dominant dynamics within each region using momentum scaling proposed by Garvine (1995). Comparisons were derived from observational data collected during …

Long-Term Trends And Drivers Of Commercial Shrimp Fisheries Across The Southeastern U.S. Atlantic Coast, Trinity Assels

Electronic Theses and Dissertations

Long-term dynamics of southeastern U.S. Atlantic commercial shrimp fisheries reflect interacting environmental and socioeconomic processes rather than uniform regional decline. However, integrated, multi-state assessments linking these drivers to fishery-dependent indicators remain limited for the region. This study analyzed over four decades (1980–2023) of confidential fishery-dependent data from coastal South Carolina, Georgia, and northeastern Florida, focusing on the region where white and brown shrimp dominate commercial landings. Segmented regression analysis was used to identify structural shifts in long-term trends of landings, participation, and catch-per-unit-effort (CPUE), while multiple linear regression models identified seasonal temperature variables associated with interannual variation in shrimp CPUE. …

Presence And Impact Of Herbicides On Intertidal Benthic Communities, Marco Sanderson

Electronic Theses and Dissertations

The growing reliance and widespread use of herbicides on a global scale is negatively affecting non-targeted biota and, consequently, their ecosystems. Herbicide levels and their impacts have been extensively researched around the world in riverine and lacustrine ecosystems. However, studies of the levels and effects of herbicides on coastal intertidal benthic communities have been lacking. This study focused on testing spectrophotometric methodologies for herbicides (atrazine and glyphosate) and documenting their presence and levels in sediment, water, and biotic tissue of intertidal coastal beaches and marshes of Waties Island and Singleton Swash, Horry County, South Carolina. A laboratory microcosm was employed …

Trophic Ecology Of A South Carolina Estuarine Predator Guild, Shane John Molander

Electronic Theses and Dissertations

Estuaries are among the world’s most productive ecosystems in the world and are characterized by the convergence of two distinct habitats, creating a mosaic of environmental conditions from inland rivers to the nearshore ocean. Many fishes occupy estuaries during various life stages for growth, reproduction, or foraging, and may reside in them seasonally. The co-occurrence of species, particularly upper-trophic level carnivores, can result in competitive interactions for prey resources within a shared environment. Identifying the degree of these interactions as well as understanding basal energy consumption can inform food web dynamics and how overlapping species use shared spaces. I used …

Initial Pilot Test Of A Single-Session Social Support Program For Increasing Social Approach Behavior And Social Support In Emerging Adults, Emily L. Jones

Electronic Theses and Dissertations

Emerging adulthood, the developmental stage between adolescence and young adulthood (Arnett, 2000), is marked by increases in autonomy, changes in social dynamics, and identity exploration (Arnett, 2015). During this stage, social stressors may trigger or exacerbate preexisting mental health problems (Slavich & Auerbach, 2018), though few emerging adults seek or receive mental health support (Zhao et al., 2025). Single-session interventions, or “specific, structured programs that intentionally involve just one visit or encounter” (Schleider et al., 2019), may present an opportunity to provide some support to those who face barriers to participation in traditional forms of treatment (Janota et al., 2022). …