Digital Commons Network^™

Creativity In Large Language Models, Robert Kenneth Morain

Theses and Dissertations

As artificial intelligence systems approach human-level performance across a wide variety of domains, creative domains remain a critical yet underexplored area of research. Unlike traditional AI tasks with well-defined objectives, creative tasks rely on inherently subjective measures, making them particularly challenging for machines that lack human experiential context. This dissertation establishes the fundamental importance of creativity in AI systems and presents methods for improving and evaluating the creative capabilities of LLMs on the pathway toward AGI. This work addresses and examines key limitations in current LLM creativity through model innovations, development frameworks, and comparative studies. The dissertation develops novel architectural …

Decidiendo Lo Mejor Para Su Educación: Immigrant Latine Madres At The Intersection Of Confianza, Ideology, And The Illusion Of Choice, Emmeline Ortiz

Theses and Dissertations

This qualitative multiple case study examined the decision-making processes of immigrant Latine caregivers selecting schools and language programs for their children classified as Multilingual Learners (MLLs) in New York City. Although policy frameworks position caregivers as central decision-makers, bilingual program access remains limited, especially in charter schools, and families must navigate language ideologies that privilege English as the safest educational pathway. Ten immigrant Latine participants, nine mothers and one grandmother, whose children attended traditional or charter elementary schools in one NYC district, shared their experiences through semi-structured interviews conducted in Spanish. Data were analyzed through iterative coding and thematic analysis …

Enhancing Engagement And Learning In Radiology: Integrating Game-Based And Case-Based Learning In Medical Education, Lisa Willson

Theses and Dissertations

The purpose of this mixed-methods action research is to integrate game-based learning (GBL), specifically an educational escape room, into case-based learning (CBL) and evaluate its impact on the engagement and academic performance of fourth-year medical students in an elective radiology course at a medical school in the southeastern United States. Sixteen students participated in the study; all identified as white. National trends indicate a significant decrease in student engagement and academic performance across various educational settings, including medical education (Kay & Pasarica, 2019). Locally, this trend is reflected in declining test scores and student feedback indicating disengagement and poor retention …

Exploring Student Perceptions Of Culture Within An Algebra Unit: A Qualitative Action Research Study, Alesha Marie Love

Theses and Dissertations

Many barriers exist when teaching and learning mathematics. Although the mathematics curriculum is rigid and rigorous by design it is often not culturally relevant for the students engaging with the content. As a result, many students of color do not have an appropriate amount of representation to connect to a subject area that already seems exclusionary. This qualitative action research study examines the effects of introducing culturally relevant references into an Algebra unit for students of color, exploring the influence of exposure to cultural references and the minimal display of cultural and racial identities within the mathematics curriculum on students …

Examining Choices Of Sarcastic Responses In Dialogue With Virtual Interlocutors, Samantha Langley

Theses and Dissertations

We report the results from three experiments examining people’s preferences for using sarcasm in conversation as a function of: 1. whether their interlocutor uses sarcasm during the conversation; 2. Their knowledge about whether the interlocutor has used sarcasm in a previous conversation; 3. The presence of prosodical and visual cues for interlocutors’ sarcasm. In each experiment, participants took part in two conversations, and we manipulated whether the interlocutors were sincere or sarcastic and whether they remained the same or changed from one conversation to the next. Experiment one used written conversations and experiment two and three used pre-recorded video clips …

Rethinking Gifted Education: An Improvement Science Study On Differentiation And Academic Growth, Mabra Herlong Wayman

Theses and Dissertations

This Dissertation in Practice addresses the problem of inconsistent academic growth among gifted and talented (GT) students in grades 3–5 at Riverview Elementary, where local STAR data show a persistent pattern of GT students falling into the Low Growth, High Proficiency category. Using improvement science as a framework, the study employed empathy interviews, a fishbone analysis, and a driver diagram to identify root causes and guide the development of a professional development (PD) intervention. The PD focused on building teacher capacity for differentiation through high-impact strategies such as problem-based learning, acceleration, independent study, curriculum compacting, and flexible grouping. The intervention …

The Moderating Effects Of Community Involvement On The Association Between Witnessed Community Violence And Mental Health Outcomes Among Black Adolescents, Curtisha Tamara Shacklewood

Theses and Dissertations

Black youth and adolescents are at a disproportionately high risk for experiencing community violence exposure (CVE) and the potential influence it may have on psychological functioning. Research posits that Black youth who experience community violence are at a significantly higher risk of experiencing elevated internalizing symptoms (e.g., depression) and externalizing symptoms (e.g., delinquency). Previous research has utilized the ecological model to investigate interpersonal protective factors that potentially buffer the effects of CVE, including parental support and family characteristics. However, there is little research that explores community-level factors, such as community activities (e.g., youth activities and parental perception of collective efficacy) …

Leveraging After School Programs As Resources To Support Adolescent Health And Wellbeing Within Underserved Communities: A Qualitative Study, Olivia Staples

Theses and Dissertations

Over the past decade, youth have shown a consistent rise in stress, major depression, anxiety, and suicide, with underserved youth (low-income, minoritized communities) at greatest risk of exposure to chronic stress, related outcomes, and less access to health services (APA, 2017). Afterschool programs (ASPs), which serve as important resources in underserved communities, can be a critical support for youth health and well-being (Afterschool Alliance, 2019). However, few studies have examined ways in which ASPs address the challenges underserved youth face across their ecosystem to promote youth resilience (Jones & Deutsch, 2011). Using qualitative interview data from staff and youth across …

Stem Integration In The Classroom: An Exploratory Case-Study On Teachers Defining Their Stem Identity And Role As A Stem Educator, Tawana Guillaume

Theses and Dissertations

The push for inclusion of science, technology, engineering, and mathematics (STEM) as a meta-discipline in K-12 education is recognition that the challenges faced by society require technology skills, interdisciplinary problem-solving, and an increased number of people entering STEM professions (Dare et al., 2014; English, 2016; Fan et al., 2021; Holstein & Keene, 2013; Roehrig et al., 2012, 2021; Sanders, 2008). The dissertation in practice explored STEM teacher identity and conceptions of STEM as a function of STEM professional experience outside of the field of education. The exploratory casestudy sought to identify the relationship between STEM career-based experiences – specifically the …

​​​Creating A Resident And Fellow Scholarly Activity Tracking Tool In A Large Academic Health System: A Dissertation In Practice​, Elyse Anne Wieszczecinski

Theses and Dissertations

Documenting and reviewing resident and fellow scholarly activity within a sponsoring institution can be a laborious task. With multiple lines of information coming from a wide variety of sources, this problem of practice implemented the Information Systems Success Model to help develop a database by which this information can be collected in a way that is efficient while maintaining the need for a user-friendly product. While other healthcare entities have also incorporated this model into their scholarly activity collection, these are still individual needs of the sponsoring institution and its constituents to consider when adapting the strategy. Using an improvement …

Inspiring Girls To Fill The Blank Space In Stem: The Impact Of An After-School Coding And Robotics Club On Elementary Female Students' Engagement And Self-Efficacy In Computer Science, Lisa Guenther Wilbanks

Theses and Dissertations

The purpose of this action research was to describe how participation in an after-school coding and robotics program influenced elementary female students’ engagement and self-efficacy in computer science. According to a 2023 report from the National Science Foundation, in 2020 women earned only 21% of computer science degrees and 24% of engineering undergraduate degrees in the United States. As two of the fastest growing fields, the lack of female perspectives and experiences will continue to limit innovation in these areas. Studies show that gender gaps in engagement and self-efficacy in STEM begin long before students enter college and the workforce, …

Adipokines Mediate Fat-To-Ovary Communication To Regulate Oogenesis, Adipocyte Size, And Lipid Storage In Drosophila Melanogaster, Chad Herbert Simmons

Theses and Dissertations

Humans have complex signaling pathways that allow them to store and expend energy based on nutritional quality and availability. Inter-organ signaling is used to communicate nutrient availability between organs based on nutritional needs and the rate of cellular division. Our main overarching question is to investigate how fat-derived signals affect adipocyte morphology and the maintenance of stem cells in the ovary. While signaling pathways, like insulin and mTOR, and some adipokines that are involved in inter-organ nutrient sensing have been identified, the exact nutrient reliant mechanisms of stem cell maintenance are not completely understood. Using Drosophila melanogaster as a model, …

Thesis: Comparing Functional And Effective Brain Connectivity Metrics For Eeg, Diksha Srishyla

Theses and Dissertations

Background:Brain connectivity measures have been used to study communication between brain regions using electroencephalography (EEG). Functional and effective connectivity estimate the synchronization and the flow of information between regions, respectively. However, findings from studies using different measures to investigate similar connections do not converge. To guide the selection of functional and effective connectivity measures in future studies, we systematically compared a set of measures in the context of resting state EEG. We examined four functional connectivity metrics (coherence (Coh), the imaginary part of coherence (imCoh), the corrected imaginary part of phase lagged value (ciPLV), the debiased weighted phase-locking index (dwPLI)) …

Ai-Driven Autonomous Manufacturing: A Novel Taxonomy, Vision-Guided Planning, And Diversity-Aware Active Learning Frameworks, Ibrahim Yousif

Theses and Dissertations

Manufacturers face two opposing challenges: the escalating demand for customized products and the pressure to reduce lead times. Current manufacturing equipment, although reliable, operates at the limits of its technology and lacks adaptability to dynamic environments. This trade-off has been described as the optimal degree of automation, a threshold beyond which further automation incurs more cost than benefit. Smart manufacturing has introduced adaptive, data-driven systems, but many deployments still lack the contextual adaptability and autonomous decision-making required to handle unplanned disruptions. This underscores the need for intelligent, autonomous systems capable of real-time adaptation without costly reconfiguration, minimizing human intervention during …

Towards Accurate First-Principles Modeling In Heterogenous Catalysis: Ethane Dehydrogenation And Hydrogenolysis Over Pt Catalysts, Mubarak Ayo Bello

Theses and Dissertations

First-principles modeling has become central to heterogeneous catalysis research, offering mechanistic insight and guiding catalyst design, yet conventional approaches often struggle to accurately describe complex catalytic systems due to methodological uncertainties, simplified assumptions, and the structural diversity of nanoparticle catalysts. This dissertation addresses these challenges using ethane dehydrogenation (EDH) and hydrogenolysis (EH) over platinum catalysts as model systems. The first study benchmarks density functional theory (DFT) functionals against the random phase approximation (RPA) for the EDH network on Pt(111), identifying cost-effective functionals and demonstrating the efficiency of BEEF-vdW ensembles for capturing functional uncertainty. The second study (addressed in prior work) …

Hearing The Difference: Just Intonation Techniques Utilizing Distortion Product Otoacoustic Emissions In Viola Performance, Calj Green Umezono

Theses and Dissertations

Difference tones, also known as distortion product otoacoustic emissions, are the result of active phenomena in the human cochlea during the conversion of sound waves into bioelectrical signals. Difference tones make it possible to explore alternative musical tuning systems beyond the twelve-tone, equally tempered regime. Musicians have investigated difference tones since the 18th Century in Euro-American musical contexts, but their application has so far been limited in scope. Advances in science, technology, and music theory from the late 19th Century through the early 21st Century have given present-day violists the opportunity to more fully understand the virtues of difference tones …

Multi-Perspective Feature Learning For Facial Expression Recognition In The Wild, Xiangyu Hu

Theses and Dissertations

With the rapid progress of deep learning, Facial Expression Recognition (FER) has seen substantial improvements in performance, particularly “in the wild” meaning real world conditions. Despite these advances, most existing methods extract features from facial images as the sole emotional cues, which limits the model’s ability to capture the full complexity of human emotional expressions.

In reality, facial expressions are composed of diverse and multi-perspective information, including appearance-based cues and geometric structural deformations due to activations of facial muscles. Depending exclusively on one type of representation may fail to exploit the complementary nature of these cues, an issue that becomes …

The Church As An Ecological And Cultural Anchor: Examining Its Role In Gifted Education, Advanced Academic Access, And Educational Equity, Matrissa Bennett

Theses and Dissertations

This action research study examines the role of the Black church as an ecological and cultural anchor in addressing the inequities of gifted education and expanding access to advanced academic opportunities for Black students. The study is grounded in Bronfenbrenner’s ecological systems theory, critical race theory, and racial and ethnical socialization, and it explores how the Black church can support student development, empower parental advocacy, and partner with schools to promote educational equity. Conducted at Mountain Valley Baptist Church in South Carolina, the interventions included student mentoring, goal setting sessions, academic enrichment, emotional support initiatives, a parent workshop, and a …

Developing A Dynamic Bilingual Space In An Early Childhood Korean Heritage Language Classroom Through Multimodal Translanguaging Pedagogy, Kyungjin Hwang

Theses and Dissertations

Drawing on translanguaging theory and multimodal literacy, this dissertation examines how a multimodal translanguaging pedagogy can create a dynamic bilingual space in a Korean heritage language classroom in the southeastern United States. Using a teacher-research design and thematic analysis of classroom video recordings and student artifacts, the study explored ten instructional modules with Korean-American children aged five to six. It first identified the core components of the pedagogy, its framework, curriculum content, and teacher strategies, and then analyzed how children flexibly used Korean and English across modes such as speaking, writing, and drawing. Findings revealed diverse translanguaging forms and functions. …

Predictors Of Outpatient Follow-Up Attendance And Subsequent Psychiatric Readmission, Sandra J. Beltran

Theses and Dissertations

Psychiatric readmissions remain a persistent challenge in mental health care, often reflecting gaps in continuity of treatment following discharge. The Agency for Healthcare Research and Quality (2019) indicated that a key component in preventing inpatient readmission is adequate outpatient care following discharge. Moreover, early attendance in outpatient follow-up visits is associated with improved patient outcomes (Boston Medical Center, 2022). Various predictors are associated with engagement in outpatient services, such as age, medication compliance, and socioeconomic variables (Carson et al., 2014; Li et al., 2005; Marino et al., 2016; Stubbs et al., 2024).

The present study sought to determine whether psychiatric …

Parent Perspectives On Contemporary Adolescent Concerns, Allyson Worthy

Theses and Dissertations

Adolescence is a critical developmental period that marks the transition between childhood and adulthood. Psychopathology is known to emerge during this time, in which many internalizing and externalizing disorders have their onset. The assessment of adolescent psychopathology involves use of questionnaire measures to obtain perspectives from the adolescent themselves, their parents, and their teachers. Parents have been found to be especially important informants of adolescent functioning. With new challenges that arise for present-day adolescents (e.g., social media use), parents can provide insight into the different areas that need to be evaluated when assessing domains of contemporary adolescents’ development and psychopathology. …

The Impact Of Project-Based Learning On Future First Generation College Students’ Oral Communication Skills, Presentation Skills, Confidence Levels, And College And Career Readiness, Mandana Marashi

Theses and Dissertations

The purpose of this action research was to evaluate the impact of a project-based learning innovation course on high school students’ oral communication, presentation skills, confidence levels, and college and career readiness in a college and career readiness program housed at a university in the Mid-Atlantic region. Effective oral communication and presentation skills have been continuously emphasized by national organizations and employers to be critical skills for success in students’ academic and professional lives. However, teaching oral communication and presentation skills to high school students has been neglected, which has negatively affected students’ college and career readiness, particularly for students …

Journey To Proficiency: The Impact Of Explicit Problem-Solving Instruction In A Fifth-Grade Math Classroom, Brittany J. Terry

Theses and Dissertations

This action research study examined the impact of explicit problem-solving instruction on fifth-grade students’ mathematics proficiency and attitudes across skill levels. At the outset, students relied on rote procedures rather than conceptual reasoning, limiting their ability to apply skills in new contexts or understand why procedures work. Grounded in constructivist and sociocultural learning theories, the study aimed to move students beyond procedural fluency through explicit instruction of problem-solving strategies, modeling, guided practice, collaboration, and reflection. Over 8 weeks, 32 students participated in daily lessons. Findings from pre–post assessments, interviews, and portfolios indicate that explicit problem-solving instruction supported measurable growth in …

Enhancing Teacher Self-Efficacy In Ngss Storyline Implementation: A Mixed Methods Action Research Study On Professional Development In Middle School Science Education, Dena Spickard Fender

Theses and Dissertations

This mixed-methods action research study examined how professional development (PD) influences middle school science teachers’ self-efficacy in implementing the Next Generation Science Standards (NGSS) Storyline curriculum. The study also explored which aspects of PD are most effective in supporting teachers at different career stages. Teacher self-efficacy is a critical factor in the successful adoption of reform-based science instruction, yet limited research has investigated how PD can be differentiated to address the needs of novice, intermediate, and veteran educators in underperforming schools.

A convergent mixed-methods design was employed to collect both quantitative and qualitative data. The Science Teaching Efficacy Belief Instrument-A …

The Processing Of Emotional Prosody And Semantics In Native And Non-Native Chinese Speakers, Cheng Xiao

Theses and Dissertations

Emotional information in spoken language is conveyed through both semantic and prosodic cues. While listeners interpret the meaning of utterances (what is said), they also detect the speaker’s emotional prosody (how it is said). For non-native speakers, processing these two types of information simultaneously can be challenging, particularly in a tonal language such as Mandarin Chinese, where the same acoustic feature (i.e., pitch) encodes both lexical semantics and emotional prosody. This dissertation reports a series of behavioral and fMRI experiments investigating how native and non-native Chinese speakers perceive and process emotional prosody and semantics in words and sentences. Behaviorally, results …

Improving District Targeted Support For Schools With Low Student Achievement By Implementing Assistance Relationships With School Leaders, Mary Ashley Gaskins

Theses and Dissertations

Riverbend School District faced a challenge: the lack of a formalized structure for providing schools with targeted support that meets their unique needs and increases student achievement. This study explored how the district-level instructional team could customize support to improve English Language Arts and Math performance at schools with low student achievement. The theory of improvement posited that district instructional leaders engaging in assistance relationships – through modeling instructional leadership and providing conceptual and practical tools – would enhance school leaders' capacity, ultimately improving teaching and learning. A key action of the improvement team was the creation and implementation of …

Developing A Comprehensive Schoolwide Discipline Plan In Title 1 Southern Schools, Rose Clark Kebe

Theses and Dissertations

This qualitative case study explored how teachers in Title I schools across the southern United States perceived and experienced school discipline practices. The study addressed the problem of inconsistent implementation of restorative and preventive frameworks, which has contributed to inequitable outcomes, teacher frustration, and lost instructional time. Although initiatives such as Positive Behavioral Interventions and Supports (PBIS) are mandated across many districts, inconsistent use and limited fidelity have restricted their effectiveness in improving equitable discipline and school climate.

The purpose of the study was to examine teacher perspectives to inform the development of a culturally responsive, schoolwide behavioral system grounded …

Food Insecurity And Social Connection Of Nicaraguan Refugees And Asylum Seekers In Costa Rica: A Qualitative Study, Keren Herran

Theses and Dissertations

Background

Given the physical and mental health consequences of food insecurity, solutions should be evidence-based and seek to prioritize vulnerable populations. This qualitative study adds to limited literature on how refugees and asylum seekers use their social connections to mitigate food insecurity by investigating how Nicaraguan refugees and asylum seekers in Costa Rica foster social connections and use these connections to acquire and manage food.

Methods

In fall 2024, 35 in-depth semi-structured interviews were conducted in San José, Costa Rica. Participants were recruited through six migrant-serving nonprofit organizations. For study inclusion, participants had to: 1) be 18 or older; 2) …

Towards Accurate First-Principles Modeling In Heterogenous Catalysis: Ethane Dehydrogenation And Hydrogenolysis Over Pt Catalysts, Mubarak Ayo Bello

Theses and Dissertations

First-principles modeling has become central to heterogeneous catalysis research, offering mechanistic insight and guiding catalyst design, yet conventional approaches often struggle to accurately describe complex catalytic systems due to methodological uncertainties, simplified assumptions, and the structural diversity of nanoparticle catalysts. This dissertation addresses these challenges using ethane dehydrogenation (EDH) and hydrogenolysis (EH) over platinum catalysts as model systems. The first study benchmarks density functional theory (DFT) functionals against the random phase approximation (RPA) for the EDH network on Pt(111), identifying cost-effective functionals and demonstrating the efficiency of BEEF-vdW ensembles for capturing functional uncertainty. The second study (addressed in prior work) …

Identifying And Understanding The Barriers To Sexual Health Information Seeking Experienced By Young Adults (Ages 18-26) Using Social Media, Alexander Nicolas Vera

Theses and Dissertations

This dissertation uses a qualitative, constructionist approach to examine the sociotechnical and cultural dynamics that shape digital sexual health-seeking practices of young adults. Guided by information practices and affordance theory, the research draws on semi-structured interviews and digital walkthroughs with 20 young adults (ages 18–26) from a convenience sample of young adults residing in South Carolina. Participants described how they use platforms like TikTok, Instagram, and Reddit not only to locate information but to assess its trustworthiness, inclusivity, and personal relevance in real time. Through in-depth accounts and screen-based demonstrations via digital walkthroughs, the study examines how participants engage in …