Uncovering Best Practices For Professional Learning: A Focus On Dialogic Discourse, Belinda Jaquez

Dissertations

The education system rests in a paradox with an ever-changing world and classrooms frozen in time. Though technological advancements, societal changes, and policy reforms are continuously reshaping the world, classrooms have remained anchored in traditional teaching and learning practices. This study examined the relationship between professional learning programs and the quality of classroom instruction with a focus on implementing more collaborative and dialogic approaches to both student and professional learning. This research involved a multifaceted program evaluation of the learning environment centered on the learning experiences of both students and teachers. A utilization-focused evaluation approach was implemented to ensure the …

Understanding The Afghan Newcomer Experience From The Perspectives Of Teachers And Students, Elisabeth C. Trost

Dissertations

Newcomer English learners (ELs) often arrive in the United States having fled persecution, economic or political oppression, war, or natural disasters in their country of origin. They are new to the English language, new to the American school system, at times well into their educational journey, and sometimes have missed out on significant amounts of formal schooling. Many also carry trauma from the circumstances that forced them to leave their homes. Most schools are not fully equipped to welcome these students and their families into the learning community, nor are they prepared to address the unique challenges newcomer ELs face. …

A Phenomenological Qualitative Study Of Sense Of Community In An Inner-City Parochial School: Expanding The Seats At The Table., Mary Andree Darnall

Dissertations

St. Angela’s School is an elementary school in the Austin area of Chicago. This phenomenological qualitative study examined Sense of Community (SOC) at St. Angela’s, operationalized as “The feeling that St. Angela School is welcoming, psychologically and physically safe, that I matter, I am respected, and that I belong.” As an inner-city, parochial school, St. Angela’s has seen extensive changes in the neighborhood and the student population, both in ethnicity and enrollment. The last two principals requested a study of its SOC to identify solutions as diminished enrollment and teacher turnover have threatened its continued existence.

Thirty-three individuals …

Identifying Success Characteristics Of First-Generation College Students: A Framework For Early Intervention In K-12 Education., Christopher Harmon

Dissertations

This dissertation examines how K–12 educators can better support first-generation college students by identifying the characteristics that promote success and developing early interventions using Wagner et al.’s (2006) 4 C’s model: Competencies, Conditions, Culture, and Context. Guided by Michael Quinn Patton’s Utilization-Focused Evaluation (UFE), it closely investigates how factors such as family background, academic preparation, finances, and social support shape first-generation students’ capacity to persist and excel in college. The research draws on interviews with first-generation doctoral students, offering a detailed, first-hand account of their educational journeys from early schooling through advanced degrees. Notably, the findings highlight the importance of …

An Assessment Of Youth Perceptions Of Youth Employment Initiatives And Attachment To Community As Determinants Of Migration Decisions Among The Youth In Keta Municipality Of Ghana, Fortune S. Zaglago

Dissertations

Youth migration from rural to urban areas in Ghana, particularly to cities like Accra, Tema, Kumasi, and Takoradi continues to rise, despite ongoing efforts to improve youth employability and reduce urban influx. This study examined the extent to which youth attachment to community and participation in employment initiatives predict migration intentions. Guided by the network, sense of community, neoclassical, and empowerment theories, the research employed a mixed-method correlational design. Data was collected from 249 participants, including 109 youth employment initiative participants, 126 non-participants, and 10 agency staff through surveys, as well as interviews with 4 heads of agencies. Quantitative data …

Bridging The Gap: Exploring The Intersection Of Formal Mental Health Services And Informal Social Supports In Bipoc Communities, Patrice D. Patton-Campbell

Dissertations

Despite growing awareness of mental health disparities, BIPOC (Black, Indigenous, and People of Color) communities continue to face significant barriers in accessing culturally responsive mental health care. This dissertation explores the intersection between formal mental health services and informal social supports such as family, religious institutions, and community networks to understand which systems are more trusted, accessible, and effective for BIPOC individuals. Grounded in Urban Liberation Psychology and guided by decolonial and culturally responsive care frameworks, this qualitative study draws from focus groups and interviews with 33 participants, including both community members and service providers from the Chicagoland area and …

Intersecting Inequities: Latinx Access To Mental Health Services, Melissa Thorson

Dissertations

This study examined barriers to mental health service utilization among Latinx populations using data from the 2022 National Survey on Drug Use and Health (NSDUH). Through the theoretical frameworks of Minority Stress Theory and Toxic Stress Theory, the study investigated the relationships between age, language proficiency, socioeconomic status, and mental health service access among different Latinx subgroups. Statistical analyses included chi-square tests, multiple regression, and mediation analyses on a sample of Latinx adults (N = 9,852). Results indicated associations between age and English proficiency (χ² = 145.23, p < .001, Cramer's V = 0.38), with 45% of adults aged 50 and older reporting limited English proficiency. Socioeconomic analysis revealed that 32% of older Latinx adults reported family incomes below $20,000, with insurance status partially mediating the relationship between income and service utilization (indirect effect = 0.15, 95% CI [0.08, 0.23]). differences in utilization rates emerged among Latinx subgroups (F(6, 1243) = 8.76, p < .001, η² = 0.12), with Mexican-origin individuals showing higher utilization (10%) compared to Puerto Rican individuals (2-3%). Age and socioeconomic status demonstrated interaction effects (β = 0.18, p < .01), while language proficiency moderated the relationship between age and service utilization (β = 0.24, p < .001). These findings suggest that barriers to mental health service utilization among Latinx populations are complex and interconnected, requiring multilevel interventions that address linguistic, cultural, and socioeconomic factors simultaneously. Implications for healthcare policy and service delivery are discussed, emphasizing the need for culturally responsive and linguistically appropriate mental health services.

The Battle Is Not Ours!: The Impact Of Racial Battle Fatigue On The Career Trajectory Of Black Women Administrators At Predominantly White Institutions, Tonishea M. Jackson

Dissertations

This qualitative narrative inquiry examines the impact of Racial Battle Fatigue (RBF) on the career progression of Black women administrators at Predominantly White Institutions (PWIs). While RBF has been studied extensively among students and faculty, there has been little research exploring its influence on Black women leaders who navigate both racial and gendered power structures in organizations where they are often underrepresented and unsupported. Grounded in the theoretical framework of Intersectionality, this study explores one primary research question: What is the relationship between RBF and the career paths of Black women administrators at PWIs, including the stages in their careers …

Traditional Institutions As Change Agents: Understanding Cultural Norms And Practices Promoting Gender-Based Violence In Nigerian Communities, Titilayo Ogunbambi

Dissertations

Traditional institutions in Nigerian communities hold a strong cultural foundation and significantly influence cultural norms and practices. Due to the increasing need for effective community-based approaches in addressing social and health problems on a global scale, we explore the attitudes and behaviors of traditional institutions as custodians of cultural customs and norms related to gender-based violence (GBV) and examine their potential role in ensuring community safety. By addressing harmful gendered norms and practices, traditional institutions could become key agents of change, promoting meaningful social transformations. This study explores the dynamics cultural norms and practices play in community safety, emphasizing the …

Social Media And The Effect On Student Engagement, Lara Mcelveen

Dissertations

The purpose of my study was to determine the impact of social media on student engagement and behaviors in high school classrooms. The overarching research question that guided my study was: What is the impact of social media on student engagement? I used a mixed methods approach of quantitative and qualitative data to research my topic. I collected the data using surveys of two stakeholder groups in the study: young adults and educators. The survey results showed that both educators and young adults perceived a decline in class engagement and the rise of behavior in the classroom from social media …

The Premature Loss Of The Black Male And Its Implications On The Black Family System And Community: A Proposed 12-Step Grief Support Group Model, Alicia Smith

Dissertations

Premature deaths, ages 15–44, and loss of Black males through homicide, along with suicide and systemic violence, and incarceration, create lifelong emotional and psychological trauma for those who remain behind in Black family settings and society. U.S. social injustices against Black communities and multigenerational losses and racial harm create specific population-based challenges, such as questioning care, lack of accessibility to competent resources, and Black identity issues, which traditional grief recovery programs struggle to help adequately. Even though approaches such as cognitive-behavioral therapy, complicated grief treatment, present-centered therapy, trauma-focused therapy, including eye movement desensitization and reprocessing (EMDR) therapy, and forgiveness therapy …

Land Access As Liberation: A Qualitative Study On Faith, Food, And Farming Of Urban And Rural Black Land Stewards In The United States, Dominique Edwards

Dissertations

Since 1920, Black farmers in the United States have held less than 2% of the nation's farmland, a direct result of race-based discriminatory policies embedded within federal, state, local, and county-level institutions (Daniel, 2013). Structural barriers—ranging from exclusionary lending practices by the U.S. Department of Agriculture (USDA) to the systematic dispossession of land through legal loopholes, heirs’ property laws, and violent racial terror—have contributed to this staggering decline in Black land ownership (Gilbert et al., 2002). The erosion of Black agrarian landholdings intensified in the latter half of the 20th century, as government programs, civil rights legislation, and technological advancements, …

The Day You Begin: A Case Study Of Culturally Responsive Pedagogy In Early Childhood Classrooms, Kim Shelton

Dissertations

Culturally responsive pedagogy (CRP) has garnered growing attention in early childhood education due to its potential to cultivate inclusive and equitable learning environments for increasingly diverse student populations. This qualitative case study examines how early childhood educators perceive and implement CRP in classrooms with high concentrations of immigrant and culturally diverse students. Additionally, it explores the perceived impact of these practices on instructional effectiveness, classroom climate, and teacher-student interactions.

Data was collected through semi-structured interviews, classroom observations, and document analysis. Thematic analysis yielded four central findings: (1) teachers’ understandings of CRP varied considerably, with some demonstrating strong intentionality and others …

Seen And Heard: A Visual Testimony Of Purity Culture Using Qualitative Photovoice Methodology, Amanda Brown

Dissertations

Purity culture, rooted in Christian teachings, has profoundly shaped individuals’ identities, relationships, and perceptions of sexuality, gender, and faith. While popular culture is talking about the effects of purity culture, scholarly literature is lacking. This study employed photovoice methodology to center the voices of those who grew up in purity culture, using photography and personal narratives to explore its long-term effects. The study focused on how individuals who have experienced purity culture articulate and visualize their stories, revealing nuanced insights across seven thematic domains: gender expectations, romantic relationships, faith, mental health, identity formation, sex and sexuality, and healing and …

Narratives Of Jewish American Public School Educators Amid Rising Antisemitism Post October 7, 2023, Cassandra Schwartz

Dissertations

This study investigated how Jewish American public school educators are responding to rising antisemitism post-October 7, 2023. While research exists on global antisemitism, the experiences of Jewish educators within the unique context of American public schools represent a significant and under-explored gap in academic literature. A qualitative narrative research approach, grounded in critical theory, was employed. Data were collected through semi-structured interviews with eight Jewish American public school educators and analyzed thematically. The findings revealed participants’ experiences of a heightened sense of fear and silence from colleagues and institutions, leading to feelings of isolation and being unsupported. Critically, this study …

Comparative Genotoxicological Analysis Of Occupational Pesticide Exposures: An Experimental Approach And Systematic Review, Moustafa Samy Sherif

Dissertations

This dissertation investigates the genotoxic and cytotoxic effects of pesticide exposure through three complementary research components: a systematic review of occupational pesticide exposure in Arab countries (AraSys), a systematic review on encapsulated versus conventional pesticide formulations (Encap-Sys), and experimental toxicological assessments of various pesticide formulations in human cell lines (Pyr-Ex). This experimental component includes cytotoxicity assays using propidium iodide and DNA damage assessments via alkaline comet assays in HL60 and HepG2 cell lines exposed to pyrethroid insecticides and glyphosate-based formulations.

The AraSys systematic review revealed a critical positive association between occupational pesticide exposure and DNA damage in agricultural workers in …

Building Bridges: Union Efforts To Address Stress Among Educational Staff, Theodore Michael Hamilton

Dissertations

This mixed-methods study examines the relationship between administrative support and educator stress and burnout in a post-COVID unionized school district. Grounded in Bronfenbrenner’s Ecological Systems Theory, the Job Demands-Resources (JD-R) model, and the Transactional Model of Stress and Coping, the study surveyed 102 educational professionals and conducted semi-structured interviews with union delegates. Quantitative findings revealed that 75% of staff worked beyond contracted hours, and 63% assumed additional unpaid responsibilities. Lower levels of perceived administrative support were significantly correlated with higher burnout and greater intent to leave the profession. Qualitative thematic analysis identified key stressors, including inconsistent administrative communication, escalating student …

Through The Wire: Examining The Experiences Of Formerly Incarcerated Students In Prison Education Programs And The Wraparound Services Needed To Support Their Success, Isabel Castro

Dissertations

This qualitative study examines the experiences of formerly incarcerated individuals in Prison Education Programs (PEPs) and the wraparound services necessary to support their success. Through Schlossberg’s Transition Theory, this study explores how incarcerated students navigate educational transitions and how educators facilitate transformative learning. Using case study and narrative inquiry, interviews were conducted with fifteen formerly incarcerated PEP participants and seven educators.

Thematic analysis revealed six major themes: Access to Education in Carceral Settings, the Impact of Education on Incarcerated Individuals, Wraparound Services and Student Support, Experiences of Formerly Incarcerated Students, the Role of Educators and Program Facilitators, and Best Practices …

Investigating The Effects Of Brief Video Interventions On White Undergraduate Students’ Racial Attitudes, Alyssa Powers

Dissertations

In this experimental study, a pretest posttest between-groups design was utilized to investigate the efficacy of two brief multicultural educational video interventions in improving the colorblind and affective racial attitudes of White undergraduate students. Ninety-eight self-identified White undergraduate students from a large, Midwestern university were randomly assigned to one of three conditions: (a) viewing a video on the pervasiveness of individual racism and White privilege in the United States (True Colors); (b) viewing a video on institutional racism in the United States (Segregated by Design); (c) viewing a study tips video as the neutral control condition. Participants’ colorblind and affective …

Colloidal Quantum Dots: A Path Toward Making Mid-Wave Infrared Sensing A Ubiquitous Technology, Mohammad Mostafa Al Mahfuz

Dissertations

Reducing the size, weight, power consumption, and cost (SWaP-C) of infrared detectors could make infrared sensing more widely accessible. In the critical mid-wavelength infrared (MWIR) spectral range of 3-5 gm, commercially available detectors are limited by the high costs associated with epitaxial growth and hybridization, as well as the need for cryogenic cooling. These factors restrict their use to defense and space applications.

Colloidal quantum dots present a promising material for overcoming these challenges, with wafer-scale monolithic integration and Auger suppression being the key material capabilities to minimize the sensor's SWaP-C. Infrared sensors based on colloidal quantum dots have been …

Childhood Neuroanatomical Markers Of Familial And Nonfamilial Attention-Deficit/Hyperactivity Disorder, Rahman Baboli

Dissertations

Attention-deficit/hyperactivity disorder (ADHD) is a highly prevalent neurodevelopmental disorder, characterized by developmentally inappropriate levels of inattention, hyperactivity, and impulsivity. Children with family history of ADHD are at an elevated risk of having ADHD as well as a higher risk of persistent ADHD into adulthood, reflecting a source of etiological heterogeneity in ADHD. This heterogeneity in terms of both biological and environmental risk factors may explain differences in neural correlates, outcomes, cognitive, behavioral as well as developmental trajectories. It is therefore critical to understand the influence of having, or not having positive family risk factors on the neuroanatomical structures of the …

Machine Learning And Optimization For Intelligent Decision-Making, Elson Cibaku

Dissertations

This dissertation presents a series of innovative machine learning and optimization model designs that address complex operational challenges across logistics and power systems. By integrating advanced neural architectures with robust optimization techniques, the work delivers scalable solutions designed to improve efficiency, reliability, and decision-making in dynamic and real-world environments. The first study introduces a two-stage approach to effective vaccine distribution. This framework tackles the capacitated vehicle routing problem by combining adaptive clustering techniques with reinforcement learning and a simulated annealing pickup policy. Through extensive computational experiments, the approach demonstrates substantial improvements in routing efficiency, reducing both computational time and logistical …

The Interplay Of Accommodation And Oculomotor Vergence Within Young Adults With Binocularly Normal Vision And Typically-Occurring Convergence Insufficiency, Sebastian Fine

Dissertations

Concerted binocular coordination evoking oculomotor and refractive responses to visual stimuli are essential to daily function. Oculomotor dysfunctions can inhibit binocular responses to visually-near stimuli and have high comorbidities to accommodative dysfunctions. Three visual cues for inward (convergent) and outward (divergent) oculomotor movements, when presented concertedly create natural-viewing conditions: disparity- the binocular difference in light cast onto the fovea due to differing ocular perspectives, blur- the acuity of a visual target which stimulates accommodation, and proximal- the perceived distance of a visual stimuli based on size.

This study aims to quantitatively investigate oculomotor vergence and accommodation performances between individuals with …

The Role Of Excitatory Neuromodulation In Managing Variability Of Neural System Output, Omar Itani

Dissertations

Neural systems can generate consistent outputs across a population despite substantial variability in the underlying components of individuals. This dissertation aims to identify mechanisms through which neuromodulation influences the relationship between parametric and output variability in neural systems. Through a combination of theoretical analysis, computational modeling, and data-driven approaches, the research addresses how excitatory neuromodulation can shape population-level activity variability and identifies key patterns that govern the production of consistent neural population output despite underlying parameter variability.

The theoretical foundation is established by considering how excitatory neuromodulation affects population variability in simplified neuronal models. Two fundamental patterns of variability reduction …

Modulation Of Cerebellar Cells By Transcranial Ac Stimulation In Anesthetized Rats, Qi Kang

Dissertations

Noninvasive brain stimulation (NIBS) is increasingly utilized in clinical trials for the treatment of neurological disorders. Each NIBS technique offers distinct advantages. Transcranial electrical stimulation (tES) is easy to apply and requires only simple equipment, while transcranial magnetic stimulation (TMS) can penetrate deeper than tES into the brain and it is more focal. Transcranial focused ultrasound stimulation (FUS) is superior to both in terms of penetration and focal stimulation. This study focuses on the modulation of the cerebellum, traditionally believed to be associated with motor coordination but increasingly recognized for its role in cognition and emotion as well. While tES …

Fact-Checking As A Multi-Step Process: From Ambiguity Resolution To Claim Validation, Wenbo Wang

Dissertations

The spread of misinformation and disinformation has become a major concern, particularly with the rise of social media as a primary source of information for many people. Fact-checking—the process of verifying claims against credible evidence—has emerged as a critical safeguard against misinformation. Yet, the task is fraught with challenges: claims are often ambiguous, context-dependent, or composed of multiple intertwined assertions, while automated systems struggle to replicate the nuanced reasoning of human experts. This dissertation addresses these challenges by reimagining fact-checking as a multi-step, knowledge-guided process that systematically resolves ambiguity, decomposes complexity, and validates claims through structured reasoning. Additionally, the proposed …

Next-Generation Extended Reality Systems With Real-Time Edge Artificial Intelligence And Mobile Computing, Pedro H. Regalado

Dissertations

Mixed reality (MR) and augmented reality (AR) systems are reshaping digital experiences by seamlessly integrating physical and virtual environments. This dissertation presents a comprehensive framework for next-generation immersive systems, combining advances in real-time data processing, multi-user synchronization, and secure communication. The core contributions are structured around three interconnected systems: MediVerse, TeleAvatar, and MultiAvatarLink, each addressing critical challenges in mobile MR.

MediVerse is a secure and scalable framework for real-time health and performance monitoring, integrating intelligent IoT sensors, wearable technologies, and MR interfaces. It supports multi-camera fusion, adaptive compression, and real-time three-dimensional (3D) point cloud generation, enhancing data accuracy and responsiveness …

Reclaiming Data: A Participatory Action Research Study To Empower Educators, Diana Hammond

Dissertations

Abstract

Currently, the day-to-day data collection and analysis work of teachers is often only deemed valuable if it is easily observed and quantitatively recorded. Teachers are asked to produce results with an incomplete set of tools and are then personally blamed — instead of blame being placed on the structural system — when the desired results don’t manifest. This participatory action research (PAR) study challenged the status quo by asking: What if teachers were empowered to expand their definition of data to include the rich, qualitative data at their fingertips, and what if teachers’ experience and intuition were valued instead …

Building A Grounded Theory Of Resilience Among Survivors Of Chronic Ischemic Stroke, Erin Marie Tompkins Doan

Dissertations

Abstract

Stroke is disruptive with elusive recovery and adjustment. Beyond traditional aspects of stroke rehabilitation, literature suggests adjustment to stroke should also include intervention with focus on resilience. A gap exists between conceptualization, theoretical models, and strategies for supporting resilience in persons with chronic ischemic stroke. This three-manuscript dissertation research comprised a scoping literature review, a pilot study, and a phenomenological case study. We employed a convergent mixed methods design in which we implemented and studied outcomes of an adaptive mindfulness intervention. We implemented eight focus groups with eight adults and four individual interviews over 13 months. The Brief Resilience …

Parent’S Health Literacy And Stress Level In The Inpatient Pediatric Setting, Tina C. Smith

Dissertations

Purpose: This study examined the relationship between parent health literacy and stress levels during their child’s inpatient hospitalization.

Background: In 2019, over five million pediatric hospitalizations occurred in the United States. Parents are central to their child’s care, but stress and sociodemographic factors may hinder their ability to understand and apply health information. This study explored how stress and other variables impact parent health literacy during hospitalization.

Methods: A cross-sectional design included a demographic survey, the Perceived Stress Scale (PSS-10), and the Newest Vital Sign (NVS). Bivariate analyses (Chi-square, t-tests) and logistic regression were used to assess …