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Conceptual Concerns Regarding The Content Validity Of The Construct Of Gender Dysphoria In The Diagnostic And Statistical Manual Of Mental Disorders, Fifth Edition, Text Revision, Waverley Vesely

Theses and Dissertations

The diagnostic classification of gender dysphoria in the DSM-5-TR elicits a number of clinical, political, and philosophical concerns, ranging from those that are diagnostic and taxonomical in nature to those that fall within the domains of ontology, phenomenology, and hermeneutics. Part of the reason for the complexity of studying the diagnostic and nosological validity of gender dysphoria as an extant diagnostic classification is that, unlike many disorders, gender dysphoria is inextricably tethered to identity. While the recent change from gender identity disorder to gender dysphoria has nominally removed the status of disorder, in practice, both clinicians and the general population …

Generating Synthetic Ct From Mri Data, Foysal Ahmed

Theses and Dissertations

Magnetic resonance imaging (MRI) provides excellent soft tissue contrast without ionizing radiation, making it a strong alternative to computed tomography (CT) in medical imaging workflows. However, CT remains essential for applications requiring electron density information, such as radiation therapy treatment planning. This study investigated the feasibility of generating synthetic CT (sCT) images from MRI using a deep learning-based U-Net architecture. A two-dimensional U-Net was trained on paired MRI-CT data from the SynthRAD 2025 dataset, consisting of 120 T1-weighted (T1W) and 60 T2-weighted (T2W) axial cases, including deformed CT (dCT) aligned to MRI. Model testing used an independent dataset of 30 …

Pathways Through Barriers: A Qualitative Study Of Career Advancement Among International Graduates Of Illinois Public Higher Education Institutions, Tieola Lambey Requena

Theses and Dissertations

International students represented an important sector of the United States higher education and labor force ecosystem, contributing significantly to academic innovation, institutional diversity, and economic growth. Illinois, which is a major educational and industrial hub, attracted thousands of international students annually and played a critical role in the development of global talent essential to both the state and the national economy. Despite these contributions, international students faced persistent challenges when navigating career advancement in the United States. Recent immigration policy shifts intensified national security concerns and employer reluctance to sponsor visas, reframing international students from valued contributors to perceived labor …

Exploring Excessive Absences In An Urban School Setting: Implications For Student Academic Success And High School Graduation, Tamieka Mclaughlin

Theses and Dissertations

This qualitative phenomenological study explored the perspectives of parents and teachers regarding excessive student absenteeism in an urban high school setting and the implications of persistent absences for students' academic success and high school graduation. Excessive absenteeism remains a major challenge for schools in urban communities where children experience multiple personal, family, school and community factors that may influence attendance. Understanding how parents and teachers perceive these factors can provide insight into the experiences and challenges associated with chronic absenteeism, as well as the strategies they believe may support improved student attendance, academic success, and progress towards high school graduation. …

Low Early Reading Skills In Children Entering Kindergarten In An Urban K-8 Center, Shelly D. Smith-Harding

Theses and Dissertations

This applied dissertation was designed to investigate the preparedness of kindergarten children in early reading skills, drawing comparisons from their experiences in comparable preschool programs and to gain insight about how to address the problem of low early reading skills among children entering kindergarten. Using archival data from i-Ready reading diagnostic tests over a 4-year period (2021-2022 to 2024-2025), the researcher compared students who attended an urban K-8 Center Head Start program (n=47) with students from other preschools (n=33).

The researcher conducted an independent t-test with SPSS, version 30 software, to analyze differences at the baseline (Assessment Period 1) and …

Mixed-Methods Study Of High School Teachers’ Perceived Training, Self-Efficacy, And Assessment Competencies In Online Courses, Chantell Radford

Theses and Dissertations

The problem in this study was that, in a large urban school district in South Florida, the online high school teachers’ training, self-efficacy, and assessment competencies in courses required enhancement. The purpose of this study was to examine the perceptions of high school teachers on their training, self-efficacy, and assessment competency in online courses.

Twenty high school online teachers participated in the study. Recruitment occurred through a link posted on Facebook and LinkedIn. The design (sequential explanatory mixed-methods design) aligned with the five research questions. Two instruments (survey and questionnaire) were used to collect data. Quantitative data analyis occurred with …

A Qualitative Study Of Teacher Perceptions Of Reading Proficiency, Latia Tyler

Theses and Dissertations

This applied qualitative dissertation was constructed to provide insight into the experiences of teachers who provide reading instruction for third grade students at the target school. Seven teachers engaged in semi structured interviews that sought to examine their perceptions on their abilities in teaching reading instruction, their perception on school supports, their perceptions on reading proficiency and factors that contribute to it. Additionally, comprehensive reading plans, published by the state of Florida, were examined to further understand the perceptions of teachers alongside district intended approach for reading instruction.

Thematic analysis of data revealed eight key themes including gaps in foundational …

Improving Middle School Students’ Scores On Math Word Problems Through Reading Comprehension, Diane M. Burgess

Theses and Dissertations

This applied dissertation was designed to address the poor performance of middle school students on math word problems attributed to the lack of reading comprehension skills. A review of standardized math assessments for middle school students confirmed that the greater proportion of questions is made up of word problems. Despite having strong mathematical skills, middle school students are likely to fail to find the correct solutions for math word problems. In the middle school classroom, the development of reading comprehension skills and mathematical abilities are tasks required of different teachers. Math teachers at a middle school in Florida did not …

The Implementation Of Small Group Direct Instruction For Reading Domains Of Second- Grade Students, Tarmeka Smith-Bennett

Theses and Dissertations

This applied dissertation explored how implementing small-group direct instruction in an elementary school setting affected the reading performance of second-grade students. The study examined how organized small-group direct instruction can elevate students’ reading achievement in phonics, vocabulary, and reading comprehension. Over a six week instructional period, a mixed-methods research design was used to collect quantitative and qualitative data.

Pretest and posttest students’ reading assessments were collected using quantitative data, while teachers' weekly reflections and surveys were collected using qualitative data. A total of 30 students identified as struggling readers, and three second-grade teachers who implemented small-group direct instruction participated in …

Teachers’ Perceptions Of The Decline In Reading Scores Among Fourth- And Fifth-Grade Students, Brigetta Foules-Sims

Theses and Dissertations

The purpose of this qualitative instrumental case study was to explore teachers’ perceptions of the factors contributing to the decline in reading achievement among fourth- and fifth-grade students in a rural elementary school in a southern state. The study explored teachers’ perceptions of the causes of declining reading performance, the instructional challenges they encounter when addressing reading difficulties, and the resources and supports they believe are necessary to improve student outcomes.

Data were collected through semi structured interviews with eight certified fourth- and fifth-grade teachers. Five themes emerged from the data: (a) increasing academic demands reveal foundational reading gaps, (b) …

High-Resolution Mapping Of Soil Moisture Variation Using Uas Thermal And Multispectral Imagery, Jackline Amma Timah

Theses and Dissertations

In agricultural landscapes, soil moisture regulates hydrologic partitioning, nutrient transport and water quality, land-atmosphere energy exchange that shapes local climate, and ecosystem resilience. However, traditional monitoring approaches, such as in-situ sensors and satellite imagery, often lack the spatial resolution required to capture fine-scale soil moisture variability. This study evaluated whether unmanned aerial system (UAS)-derived thermal, multispectral, and terrain variables can capture fine-scale spatial variability in volumetric water content (VWC) within an SRB in central Illinois.

High-resolution imagery was collected and paired with 50 field-measured VWC observations. Land surface temperature (LST), vegetation indices (NDVI and NDRE), spectral bands, and slope were …

Advancing Cybersecurity Through Userland Memory Forensics: From Runtime Analysis To Security Applications, Hala Ali

Theses and Dissertations

Memory forensics has become a crucial component of digital investigations, particularly for detecting malware operating solely in system memory. As operating system vendors implemented kernel access restrictions, malware authors shifted to userland malware. However, existing memory forensics techniques have largely focused on kernel-level analysis, leaving userland runtimes insufficiently covered. This dissertation addresses this gap by expanding memory analysis capabilities across two distinct paradigms: interpreted and compiled runtimes. The first phase targets the Python runtime, developing automated recovery techniques that enable several security applications. For malware detection, these techniques extract critical forensic artifacts such as encryption keys and command-and-control configurations. For …

The Interaction Between Academic Self-Efficacy And Social Support: Exploring Moderation Effects On Academic Performance And Emotional Well-Being During The Transition To Secondary School, Luis Josué Ortiz Martes

Theses and Dissertations

The transition to secondary school can intensify academic demands and emotional strain, making it a critical context for examining students’ psychological and social resources. This applied dissertation examined whether perceived social support (SS) moderates the association among academic self-efficacy (ASE), academic performance (AP) and emotional well-being (EWB) among seventh-grade students at a private, multilingual school in Puerto Rico. Using a time-lagged, nonexperimental correlational design, 14 students completed the academic subscale of the Self-Efficacy Questionnaire for Children (SEQ-C) and the Social Support Appraisals Scale (SS-A) at the start of the academic year; EWB was assessed at midyear with the Negative and …

Elementary Teachers’ Perceptions Of Differentiating Tier 1 Reading Instruction Within A Multi-Tiered System Of Support Framework, Ivonne Ciresi

Theses and Dissertations

This generic qualitative dissertation explored elementary teachers’ perceptions and experiences of implementing Tier 1 differentiated reading instruction within a Multi- Tiered System of Support (MTSS) framework. Establishing effective systems and supports for comprehensive reading instruction in the Tier 1 classroom is a critical component of MTSS. Given the range of structures required, including instructional routines, resources, and ongoing professional development, it is important to understand how teachers navigate the challenges of differentiating reading instruction. The purpose of this study was to examine how teachers implement differentiation during core reading instruction, the challenges they encounter, and the role of professional learning …

Perceptions And Experiences Of Teachers Regarding How Their Students’ Attendance Rate Impacts Their Academic Achievement, John Logan Jr.

Theses and Dissertations

Chronic absenteeism has emerged as a critical educational concern nationwide, particularly following the COVID-19 pandemic. National data indicate that chronic absence rates increased from 15% in 2019 to 28% in 2022, and in the targeted rural South Carolina district, 25% of students were chronically absent in 2022–2023, rising to 28% in 2023–2024. Persistent absenteeism is associated with lower academic performance, widened achievement gaps, and diminished long-term educational and workforce outcomes, especially among socioeconomically disadvantaged and minority students.

The purpose of this qualitative phenomenological study was to examine teachers’ perceptions and experiences regarding how students’ attendance rates influence academic achievement in …

Culturally Responsive Pedagogy: Its Role In Maximizing Students’ Performance On Standardized Tests, Keisha Ricketts-Martin

Theses and Dissertations

This applied dissertation was designed to highlight the importance of pedagogy for cultural responsiveness, and to explore the relationship between such pedagogy and middle school students’ performance on state or standardized tests. Therefore, this study explores the educational or academic values that students will gain from being engaged in a learning environment that recognizes their culture and uses it as a tool to maximizing their educational outcomes.

This research employed convergent parallel mixed method design. Therefore, it implemented the qualitative and quantitative approach at the same time and placed equivalent worth to the information collected by each approach. Therefore, the …

Implementación De Estrategias En La Enseñanza De Los Números Reales A Estudiantes Con Formación Deficiente En Matemática, En Un Instituto Técnico Superior Comunitario De La República Dominicana, Antonio Manuel Rojas Taveras

Theses and Dissertations

Este estudio abordó la problemática del bajo rendimiento en la enseñanza y aprendizaje del conjunto de los números reales en estudiantes de un instituto técnico superior de la República Dominicana que presentaron una formación deficiente en matemáticas. Se observó que los métodos de enseñanza tradicionales, basados en la memorización y la repetición, no son efectivos para abordar las necesidades de estos estudiantes, lo que genera desmotivación y un serio obstáculo para la finalización de sus carreras. Además, factores como el contexto sociocultural, la falta de recursos didácticos, la escasa capacitación docente y los desafíos estructurales del sistema educativo dominicano contribuyeron …

First-Year Academic Success Strategies For Student Veterans, Vincent Ciarla

Theses and Dissertations

This qualitative case study explored the perceptions and experiences of student veterans regarding academic success strategies during their first year of college. The study was guided by three research questions examining perceived difficulties, needed support systems, and overall transition experiences. Five student veterans who had successfully completed their first year at a community college participated in semi-structured interviews. Data were analyzed using multi-cycle coding procedures, including open coding, pattern coding, and cross-case analysis, resulting in the identification of recurring themes.

Findings indicated that participants experienced initial confusion related to institutional processes, challenges navigating educational benefits, and difficulty adjusting to differences …

Impact Of Single-Gender Education On Academic Performance, Stacey Wilcher

Theses and Dissertations

This dissertation examines the performance of middle school students Grades 6–8 in single-gender versus coeducational schools in a large urban district in the southeastern United States. It evaluates whether single-gender education leads to better academic outcomes and higher engagement, offering important insights for educational leaders and policymakers.

The study utilized Social Cognitive Theory and gender segregation theory through a mixed-methods approach, collecting quantitative data from standardized assessments (2021-2025) like the GMAS and MAP. Statistical analyses, including t-tests and ANOVA, were used to assess academic performance. Qualitative data from interviews and focus groups explored classroom engagement and teaching practices.

Participants included …

From Bias To Bottleneck: A Quantitative Analysis Of Gender Preferences In Tech Hiring, Uma Chidambaram

Theses and Dissertations

This applied dissertation examined whether gender preferences influence hiring decisions in the information technology (IT) sector, and whether such preferences contribute to the ongoing labor shortage in the field. Despite national and international initiatives to close the gender gap, women continue to represent only 28% of the United States IT workforce and remain significantly underrepresented in technical and leadership roles. Grounded in the Eagly and Karau (2002) Role Congruity Theory of Prejudice, this study investigated whether evaluator gender and candidate gender alignment affect interview selection outcomes at the résumé screening stage for both leadership and non-leadership IT positions.

A quantitative, …

Increasing Reading Comprehension Of Middle School Students With Hearing Disabilities, Abbis Bivins

Theses and Dissertations

In this study, the effectiveness of researcher-created training sessions for teachers designed to improve reading comprehension in class for students who are deaf or hard of hearing was examined. The training was focused on key instructional components, including morphology, syntax, vocabulary, phonology, explicit feedback, and activation of prior knowledge. Additionally, parent-focused strategies such as collaboration with professionals, reading routines, summarization, interactive reading, and the use of home language were taught. A qualitative research design was used to explore the perceptions for both teacher and parent groups following participation in six 1-hour training sessions.

Teachers’ findings indicated increased confidence, intentional instructional …

Usage Behavior Of Hispanic English Learners With Bilingual Homework Resources In Developmental Mathematics At Community College, Debra Krieg

Theses and Dissertations

This applied dissertation, grounded in the theoretical framework of metalinguistic awareness, was designed to understand how six Hispanic English learners (ELs) were utilizing homework help resources when offered in both English and Spanish. Specifically, the study was conducted at a mid-Atlantic community college with students enrolled in a developmental mathematics course. Homework has long been established as a tool that increases the probability of academic success. The shift to web-based assignments in developmental mathematics from traditional pencil and paper homework has yielded positive results yet little is known regarding how learners utilize bilingual digital assessment tools to achieve mastery of …

The Continuity And Fluidity Between Emergent Literacy Skills And Literacy Acquisition, Shiesha D. Otokina

Theses and Dissertations

This research study was undertaken because emergent literacy skills are crucial in helping children develop their reading abilities. Research suggests that early intervention is a key strategy for closing the achievement gap, and that early literacy skills develop as early as when children begin to communicate verbally and nonverbally. Studies show that the larger a child's vocabulary is, the quicker they learn to read.This study examined the significance of reading development and a child’s ability to acquire reading skills across the stages of reading acquisition.

This study compared student scores in the experimental and control groups to determine whether the …

Higher-Level Questioning In Elementary English Language Arts, Charity Zawatski

Theses and Dissertations

This exploratory case study addressed the difficulty with higher-level metacognition and questioning in a primary level elementary English Language Arts. This case study was determined as a need based on underperforming scores from the state assessment in ELA.

The research method look at the social phenomenon through inquiry around the rigor in higher-level questioning and the use of hand signals to support connections in learning. The researcher applied a semi-structured interview, an observation checklist, and a random sample of student artifacts as instruments for data collection. The researcher analyzed teachers’ lesson plans for a unit, observed a virtual classroom lesson …

General And Special Education Teachers’ Collaboration And Co-Teaching Experience In Inclusive High School Classrooms, Pascale Atouriste

Theses and Dissertations

This qualitative descriptive study explored the collaboration and co-teaching experiences of general and special education high school teachers in inclusive high school classrooms in Florida. Guided by Pratt's achieving symbiosis theory, the study addressed three re-search questions concerning teachers' perceptions of (a) the benefits of co-teaching and collaboration, (b) the challenges they encounter, and (c) the strategies they find most helpful. Data were collected through semi-structured interviews with 10 general and special education teachers at a public high school in Florida and analyzed using Braun and Clarke's six-step reflexive thematic analysis procedure.

Six themes emerged from the data. For RQ1, …

Estudio De Necesidades De Formación Continua Del Maestro En Las Áreas De Matemáticas Y Lectoescritura Para La Enseñanza De Estudiantes De Preescolar En Head Start, Briseida Benítez González

Theses and Dissertations

La presente disertación aplicada fue diseñada con el propósito de identificar las necesidades de formación continua del maestro preescolar en la enseñanza de matemáticas y lectoescritura en el programa Head Start en el Municipio de Humacao en Puerto Rico. La investigación respondió a tres preguntas de investigación donde se identificaron los componentes metodológicos de alfabetización temprana, así como en matemáticas, necesarios para mejorar la calidad de la enseñanza en preescolar. Para el diseño de esta investigación se utilizó el método cuantitativo con un enfoque descriptivo experimental de carácter exploratorio transversal. La muestra estuvo constituida por 33 educadores y los datos …

Reading Achievement And Response To Intervention Participation Among Socially Promoted Elementary Students In Grades 3 To 5: A Comparative And Predictive Analysis, Paige Griffin

Theses and Dissertations

This applied dissertation examined reading achievement among socially promoted elementary students in Grades 3 to 5 by investigating the relationship between Response to Intervention (RTI) participation and Spring I-Ready Reading Diagnostic scaled scores. Although RTI is widely implemented as a multi-tiered framework to provide targeted instructional support for struggling readers, limited research has examined reading outcomes among socially promoted students in rural elementary schools using standardized reading assessment measures.

This quantitative, non-experimental, causal-comparative study analyzed secure, de-identified archival student data obtained following approval from the Nova Southeastern University Institutional Review Board and authorization from school district personnel. The study included …

The Influence Of Haitian Immigrants’ Culture On Academic Outcomes At Elementary Level, Tonnette Samuels

Theses and Dissertations

This qualitative study explored how teachers, parents, and administrators perceived the influence of Haitian cultural values and practices on the organizational culture and academic outcomes of elementary students in a southern United States county. Guided by the resource-based view theory, which frames culture as an intangible organizational asset, the study used interpretative phenomenological analysis to examine the lived experiences of five participants, including three teachers, one parent, and one school administrator. Data were collected through semi structured interviews and analyzed to develop personal experiential themes for each participant and group experiential themes across cases.

The study’s findings generated four group …

Structural Framework And Tectonic Implications From Field Investigations In The Ramelau Mountains, Timor-Leste, Tanner A. Nielsen

Theses and Dissertations

Recent advances in petroleum exploration off the southern coast of Timor-Leste and emerging mineral discoveries onshore have underscored the need for a more comprehensive structural understanding of the nation's geology. Although new structural models have been proposed for other parts of Timor, limited progress has been made toward developing detailed models for the Ramelau Mountains, which presents the highest structural relief of the Timor Ranges. Previous mapping in this area has been largely reconnaissance in nature and focused primarily on surface bedrock geology. This study presents a new 1:62,500-scale geologic map and a geometric structural analysis of the Ramelau region …

Perron Theorem Application To A Second-Order Differential Equation With Small Advances, Jason Hendrix

Theses and Dissertations

We analyze a delayed second order differential equation with small delay parameters, proving spectral stability via the characteristic quasi-polynomial and establishing uniform bounds on derivatives of the Green’s function to ensure sign preservation under perturbation, providing a foundation for monotone iteration methods. These results aim to advance the functional-analytic framework for traveling wave solutions in delayed reaction-diffusion systems.