Digital Commons Network^™

Assessing Alexithymia In Law Enforcement: The Role Of Service Tenure And Sex, Elfego J. Gallardo Jr

Dissertations

ABSTRACT

Alexithymia, characterized by difficulties in identifying and expressing emotions, has significant implications for professions requiring emotional intelligence and trauma-informed response. Law enforcement officers routinely navigate high-stress encounters that demand emotional regulation, clear communication, and empathy, yet those with alexithymic traits may struggle in these areas, potentially affecting interactions with victims, suspects, and the community. This study examined the prevalence of alexithymia among front-line police officers in suburban municipal agencies within the Chicago metropolitan area, using the Toronto Alexithymia Scale-20 (TAS-20) as a standardized assessment. The research addressed three questions: (1) What proportion of officers exhibited normative or elevated levels …

A Comparison Of The Factors That Affect Graduation Rates Of Students Enrolled In Dropout Prevention Programs, Catina R. Thomason

Dissertations

The purpose of this study was to compare the factors that affected the graduation rates of students enrolled in five charter high school dropout prevention programs that utilized the same online accelerated curriculum model. The overarching research question was: what factors affected the graduation rates of students enrolled in dropout prevention programs? A mixed methods design was employed to evaluate extant data on graduation rates and attendance rates surveys and semistructured interviews were completed by administrators and teachers to compare data across the five schools. This approach allowed for a comprehensive analysis of both quantitative and qualitative data, providing a …

Sustained Effects Of Reading Recovery®: Beyond The Intervention, Dr. Lisa A. Fisher

Dissertations

The purpose of this study was to conduct a longitudinal analysis of the sustained effects of Reading Recovery® on literacy achievement beyond the initial intervention period. It examines the program’s long-term effectiveness, assessing whether early literacy gains are maintained and identifying key factors that contribute to sustained progress. This study, titled “Sustained Effects of Reading Recovery®: Beyond the Intervention,” seeks to fill a critical gap in existing research by providing insights into the extended impact of this early literacy intervention.

A longitudinal, mixed-methods approach was employed, incorporating quantitative data analysis and qualitative insights from educators and administrators. The study was …

Assessing Psychologists’ Clinical Knowledge Of Geriatric Depression: A Validation Study Of The Later Life Depression Knowledge Questionnaire, Abigail J. Laine

Dissertations

Because the US population is rapidly aging, generalist clinicians will increasingly be called upon to provide mental health services to older adults. Unfortunately, most generalist clinicians do not possess the specialized knowledge to provide clinical services to this population and will require training. Professional training efforts are currently hindered by the lack of psychometrically supported scales of clinical disorders specific to aging. Without such scales, it is difficult to evaluate the impact of continuing education programs. The purpose of the present study was to investigate the psychometric properties and scale dimensionality of the Later Life Depression Knowledge Questionnaire (LLD-KQ), a …

Leadership Practices For High-Performing Teams: Insights From Senior Military General Officers And Flag Officers, Kimberly Mitchell

Dissertations

Purpose: The purpose of this mixed methods study was to identify and describe how senior military general officers and flag officers (GOFOs) used the three competencies of high-performance teams (HPTs; clarity, connection, and communication) to achieve objectives in their organizations. The second purpose of this study was to determine the degree of importance that senior military GOFOs perceived the three high-performance team effect (HPTE) core competencies impacted their leadership for creating HPTs.

Methodology: This mixed methods study identified and described nine senior military officers’ perceptions of strategies to lead HPTs while focusing on the three core competencies: clarity, connection, and …

Intimate Partner Violence Screening Education For Nurses In Emergency Department, Martha I. Wydra

Dissertations

This quality improvement project aims to increase nurses' knowledge, confidence, and skills in IPV assessment in the ER using an education program and the PREMIS tool.

The Experience Of Transition To Self-Management For Saudi Adolescents With Type I Diabetes, Aeshah M. Almulhim

Dissertations

In Saudi Arabia (SA), between 2011 and 2021, there has been a 108% increase in death rates due to diabetes. Every year, around 3,800 Saudi children and adolescents under the age of 19 are diagnosed with Type I Diabetes (TIDM). Saudi adolescents with TIDM have less glycemic control than adults and younger children. If left untreated, inadequate glycemic control may hasten the onset of diabetes complications and early death. As adolescents with TIDM grow older, they are expected to take on more independence in Self-Management (SM) of their diabetes. The poor clinical outcomes of adolescents with diabetes, the onset of …

Like Teacher, Like Student: An Exploration Of Racial Matching On Black Student Identity Development In Secondary Education, Crystal Gloria Lennix

Dissertations

Research on racially matching teachers of color with students of color has demonstrated a plethora of benefits, whether it is in West-Indian teachers with West-Indian students (Warikoo, 2004), Mexicana educators with Mexicana students (Sosa-Provencio, 2019), or Black students with Black teachers (Brooms, 2017). Black teachers are warrior spirits, acknowledging education as a “racial, cultural, linguistic, and spiritual reclamation” for Black students (Sosa-Provencio, 2018). In this study, I sought to understand how the racial matching between Black teachers and Black students can impact Black students’ identity and achievement. Numerous studies say racial matching helps students, but only a few focus on …

Embodied Freedom: Nietzsche On Agency, Health, And Value, Nathan University Berthiaume

Dissertations

This study examines Nietzsche’s views on freedom to show how they inform a notion of human flourishing. I argue that while Nietzsche denies the existence of a metaphysical freedom in which the self is an unconditioned cause of events, he affirms an embodied freedom in which our consciousness can function as part of the causal explanation for action in virtue of its ability to alter the expression of bodily drives. However, I demonstrate that agential power in this sense can only function in conjunction with other causal factors that constitute constraints on freedom. As such, I argue that there is …

Discerning The Role Of Microtubule Acetylation During Hiv-1 Infection, Drew Michael Lichon

Dissertations

The host-pathogen interactions underlying Human Immunodeficiency Virus type 1 (HIV-1) infection are complex and involve the exploitation of host cellular machinery. This thesis investigates the roles of dynein adaptors, microtubule acetylation, and TRIM69-mediated restriction in HIV-1 infection. Through a series of detailed experiments, we explore how HIV-1 utilizes multiple dynein adaptors, such as BICDR1 and Hook3, for intracellular transport, and reveal that these adaptors are critical for efficient viral trafficking. Conversely, the knockdown of Ninein surprisingly enhances HIV-1 infectivity, suggesting a nuanced regulatory role for this adaptor in viral transport. Further, this thesis challenges the prevailing paradigm that microtubule acetylation …

Investigating The Role Of The Nsp15 Amino-Terminal Domain In Nsp15 Function, Viral Replication, And Pathogenesis, Monika Evdokimova

Dissertations

Identifying conserved mechanisms used by viruses to delay host innate responses can reveal potential targets for antiviral therapeutics. Here, we investigated coronavirus nonstructural protein 15 (nsp15), which encodes a highly conserved endoribonuclease (EndoU). EndoU functions as an immune antagonist by limiting the accumulation of viral replication intermediates that would otherwise be sensed by the host. Despite being a promising antiviral target, it has been difficult to develop small molecule inhibitors that target the EndoU active site. We generated nsp15 mutants of SARS-CoV-2 and mouse coronavirus MHV-A59 and identified conserved residues within the amino-terminal domain that are required for EndoU activity. …

A Phenomenological Study Exploring Superintendent’S Perceptions On Four Servant Leadership Characteristics For Developing High-Performing Teams, Katie Chin-Berry

Dissertations

Purpose: The purpose of this phenomenological study was to explore and describe public school superintendents’ perceived impact of four servant leadership characteristics established by Spears (2010) on developing and maintaining high-performing teams. Methodology: This phenomenological research study explored and detailed how superintendents perceived the influence of four servant leadership characteristics on developing and maintaining high-performing teams. Eight participants were chosen using nonprobability purposeful and convenience sampling based on specific criteria, which required at least 4 years of experience in their district, a minimum of 10 years of experience in the K–12 public school system, and employed in a K–12 district …

Leadership’S Impact On Employees’ Perception Of Their Safety Culture In A Public Transportation Organization, Paul Hadley

Dissertations

Purpose: This nonexperimental quantitative study aimed to examine the relationship between various leadership styles using the Multifactor Leadership Questionnaire (MLQ; Bass & Avolio, 1995) and employees’ perceptions of their organization’s safety culture based on a developed Safety Perception Questionnaire (SPQ) within the context of a public transportation agency. Methodology: This study used a quantitative approach to collect data from employees in a public transportation agency. Leadership characteristics were assessed using the MLQ, which is a self-report tool designed to measure three distinct leadership styles. The employees’ MLQ scores were correlated with their results on the SPQ, which evaluates perceptions of …

Best Practices In Developing Self-Efficacy: A Case Study In Preparing Rural, Predominantly Disadvantaged, High School Students For College And Career Readiness, Rudy Cardona

Dissertations

Purpose: The purpose of this case study was to identify the best practices used by faculty and administrators at exemplary, rural, California high schools, with predominantly disadvantaged students, to develop self-efficacy in reaching college and career-readiness. A further purpose was to identify supports and barriers affecting student self-efficacy in stimulating expectations, interest, and choices in goals and actions toward college and career readiness.

Methodology: This case study examined the best practices for developing student self-efficacy in the top 13% of college- and career-ready, rural, socio-economically disadvantaged high schools in California. It also explored perceptions of supports and barriers to college …

The Impact Of Quality Management Principles On Army Aircraft Maintenance Outcomes, Matthew S. Caporossi

Dissertations

Purpose: The purpose of this qualitative phenomenological study was to identify and describe the perceptions of organizational managers on the impact of quality management principles on helicopter maintenance outcomes at the California Army National Guard’s Aviation Classification Repair Activity Depot (AVCRAD). This study also explored the perceptions on the organizational culture as it pertained to leadership and employee engagement of the International Organization for Standardization (ISO) 9001 quality management systems.

Methodology: This qualitative phenomenological research examined the perceptions of Army aviation managers regarding specific ISO principles of leadership and

improvement on AVCRAD maintenance outcomes. The researcher conducted open-ended qualitative interviews …

How Supervisors Can Help Their Subordinates Manage Stress Post-Covid-19: A Phenomenological Qualitative Research Approach Focused On The Lived Experiences Of Police Sergeants And Their Role In Helping Mitigate Stress Among Police Officers, Elvis Nti

Dissertations

Purpose: The purpose of this phenomenological qualitative research was to explore how police sergeants effectively lead their police officers in managing stress post-COVID-19 using the leadership traits of collective interest, moral purpose, personal temperament, and resilience (Fast, 2021).

Methodology: This phenomenological qualitative research approach focused on the lived experiences of police sergeants and aimed to explain how they reduce stress among police officers. Participants were selected using purposive and convenience sampling. Semistructured interviews were conducted with police sergeants from the Los Angeles Police Department. Interviews were recorded, transcribed, and coded. Themes naturally emerged and were compared across participants to identify …

Phenomenological Study Of Personality-Driven Leadership In Social Justice Nonprofits Of The Pioneer Valley, Kelvin Molina-Brantley

Dissertations

Purpose: The purpose of this phenomenological study was to examine how executive directors of nonprofit organizations leading social justice initiatives implement leadership styles shaped by their unique personality traits, and how these styles influence employee attitudes, team functioning, and organizational performance.Methodology: Guided by Hogan and Kaiser’s (2005) leadership model, which asserts that “who we are determines how we lead,” this qualitative study used semistructured interviews with 10 executive directors of social justice-focused nonprofits in the Pioneer Valley. Participants reflected on their leadership development, the role of personality in decision-making, and its influence on organizational life. Data were collected through virtual …

A Phenomenological Study: Implicit Bias In The Hiring Practices Of Health Care Organizations (Perception, Impact On Workforce Diversity, Mitigation Methods, And Implementation Assessment), Mohamed Boubrik

Dissertations

Purpose: The purpose of this phenomenological study was to explore how implicit bias influences hiring practices within health care organizations. Specifically, it investigated the perceptions of hiring professionals regarding implicit bias, its impact on workforce diversity, the strategies used to mitigate it, and the effectiveness of those strategies in real-world implementation.

Methodology: This qualitative study employed a phenomenological approach to capture the lived experiences of hiring professionals in Southern California health care organizations. A random sampling method was used to select participants across various health care facilities. Data collection was conducted through semistructured interviews, using a validated interview protocol as …

Resetting The Imposter Phenomenon Reality: A Mixed Methods Research Study Of An Immediate Cognitive Behavioral Intervention On Stem Practitioners, Peter D. Smith

Dissertations

Imposter Phenomenon (IP) remains an essential framework for understanding how professionals attribute success to chance or misconceptions rather than genuine abilities. IP is especially pertinent for individuals who feel like frauds when attaining higher positions, convinced the promotions resulted from luck rather than accomplishments and credibility. The misguided mindset cultivates feelings of inadequacy or deceit, even when accolades, experiences, and qualifications prove the contrary. The prevalence of IP is widespread, impacting numerous individuals who have faced or continue to endure episodes of varying intensity. The psychological state makes individuals vulnerable to feelings of inadequacy, leading to reduced productivity, increased procrastination, …

Bookmarked: A Study Of Reading Engagement, Miranda W. Dickson

Dissertations

In many Science of Reading programs, the focus on foundational skills like phonics and fluency can overshadow the importance of reading engagement in elementary classrooms. This dissertation investigates the effects of a balanced literacy intervention designed to incorporate purposeful engagement strategies across 12 lessons for at-risk third-grade readers. The six-week intervention integrated skills instruction with reading engagement strategies in the subcategories of social, cognitive, affective, and behavioral engagement. Grounded in Engagement Theory (Guthrie & Wigfield, 2000), the study's instructional framework and literature review explore foundational theories of reading engagement within these subcategories: behavioral, cognitive, affective, and social. The research was …

Assessing Best Practices Of Facilitation Of The Free Exercise Of Religion By Army Chaplains Utilizing The Success Case Method, Geoffrey N. Bailey Phd

Dissertations

This mixed-methods study examined how U.S. Army chaplains experience and facilitate the free exercise of religion. The research explored compelling narratives of best-case facilitation experiences, identified leadership qualities associated with successful religious support, and analyzed similarities and differences between best and worst-case scenarios. Using Brinkerhoff's Success Case Method, the study distributed a quantitative survey to 1,478 active-duty chaplains (achieving a 23% response rate) followed by twelve guided interviews with participants representing diverse ranks and faith traditions. The research revealed six major themes: significant gaps in education for pluralistic ministry, tension between personal religious convictions and professional duties, crucial impact of …

Leadership In Times Of Crisis: Motivating Employees Through The Challenges Of The Covid-19 Pandemic, Hanan Khamis

Dissertations

Purpose: This study explores the critical role of leadership and employee motivation in sustaining organizational effectiveness during times of disruption, focusing specifically on the challenges posed by the COVID-19 pandemic. It investigates how leadership styles and motivational theories evolve in response to heightened uncertainty, rapid operational changes, and emotional strain. Central to this purpose is understanding how adaptability, empathy, communication, and relational leadership practices help maintain employee engagement and ensure continuity within higher education institutions during crisis conditions.Methodology: A qualitative phenomenological methodology was used to capture the lived experiences of 10 human resource (HR) leaders representing public and private universities …

Spatial And Temporal Variability Of Dayside Magnetopause Reconnection, Krishna Khanal

Dissertations

The dissertation investigates the spatial and temporal variability of magnetopause reconnection, a central tenet of the solar wind-magnetosphere-ionosphere coupling. In the spatial sense, magnetopause reconnection occurs along X-lines of variable extent, which can be determined through remote sensing using ionospheric observations. Using in situ observations from Time History of Events and Macroscale Interactions during Substorms (THEMIS) in conjunction with ionospheric observations from the Super Dual Auroral Radar Network (SuperDARN), we conducted a statistical study to examine the variability and controlling factors of the spatial extent of magnetopause reconnection. Our findings indicate that the magnetopause X-lines can span from a few …

The Effect Of Inclusive Leadership By Pastoral Leaders On Catholic Parish Vitality, Matthew F. Manion

Dissertations

Catholic parish life in the United States has passed the point of decline where minor changes will enable it to grow again. Church leaders need a new missionary culture and outward-focused approaches to reach people today with the timeless truths of the faith. The old mindset of putting all the responsibility on the shoulders of the clergy to solve problems no longer works. Since heterogeneous groups make better decisions than homogeneous groups in complex, adaptive situations, this study explores the hypothesis that inclusive leadership by Catholic parish leaders leads to more innovation and better solutions to the challenges of church …

A Phenomenological Study Of Success Despite Barriers: How Leaders With Disabilities Experience Supervisory Leadership Through The Lens Of Adaptive Leadership, Ashley Oberlander Townsend

Dissertations

People with disabilities experience unemployment and underemployment more frequently than those without disabilities and encounter obstacles to becoming supervisory leaders (Harlan & Robert, 1998; Krzeminska et al., 2019; Roberson et al., 2021). The American workforce is significantly impacted by this problem, as more than one in four people have a disability (Centers for Disease Control and Prevention, 2024). This hermeneutic phenomenological research utilized interviews to collect data from three participants to answer the research question to explore the problem: what are leaders with disabilities’ lived experiences in overcoming barriers to achieving supervisory roles using an adaptive leadership lens? The research …

Correlated Unsteady Interactions Between A Normal Shock Wave, Lambda Foot, And Other Flow Events, Ward Manneschmidt

Dissertations

This dissertation considers interactive relationships between a normal shock wave and the downstream shock wave leg of the associated lambda foot, as well as between a normal shock wave, time-varying static pressure, surface temperature fluctuations, and surface heat flux variations as measured along the bottom surface of the test section. Such relationships are investigated as they vary with two different magnitudes of inlet unsteady Mach wave intensity and are characterized using shadowgraph flow visualization data, as well as power spectral density, magnitude squared coherence, and time lag data. Employed for the investigation is a specialty test section with an inlet …

Insights Into Female Urinary Microbiota Through Long-Read 16s Rrna Sequencing, Jerrin John

Dissertations

The human urinary microbiome—once thought to be sterile—is now recognized as a dynamic, low-biomass microbial community with potential implications for urinary tract health. Conventional short-read 16S rRNA gene sequencing targeting individual variable regions often lacks the taxonomic resolution needed to distinguish closely related species, while culture-based methods may miss fastidious or low-abundance taxa. We applied full-length 16S rRNA gene sequencing across all nine variable regions to daily urine samples collected from asymptomatic premenopausal female participants. Sequence data were processed with a modified DADA2 pipeline optimized for long reads to generate exact sequence variants. We compared species-level community profiles against both …

Skip-Level Meetings: Perspectives Of Skipped First-Tier U.S. Tech Leaders, Samuel Blacher

Dissertations

Although significant research exists on numerous intersecting theories, such as adaptive leadership, leadership communication, and employee voice, and although they are discussed in business publications and widely yet inconsistently implemented in industry, skip-level meetings are little scholarly studied. Such meetings offer benefits for employees, direct (skipped) managers, and skip-level leaders, and through them, to organizations, yet they also hold risks and pitfalls, and are influenced by various contextual factors, such as stakeholders’ national culture and age. This exploratory qualitative study employed elements of interpretive phenomenology, followed by thematic analysis, to examine the experiences, perceptions, and emotions of a diverse set …

Stories Of Seventh-Day Adventist Teachers Of Color And Their Voluntary Job Mobility During Their Early Years Of Teaching, Dollene Trott-Smith

Dissertations

Problem

Teachers of Color in the Seventh-day Adventist school system experience voluntary job mobility and attrition, contributing to increasing teacher turnover rates in the U.S. Since the 1954 federal mandate to desegregate U.S. public schools, this phenomenon has become more pressing. Despite racial and ethnic diversification in school staffing, the White teacher population remains around 80%, with Teachers of Color making up only 20%. While extensive research exists on public school teacher turnover, limited studies focus on private school educators, including those in the Seventh-day Adventist school system.

Method

This transcendental phenomenological qualitative study explored the voluntary job mobility of …

Predictors Of General Education Teachers' Self-Efficacy For Educating Autistic Students: Enactive Mastery Experiences, Vicarious Experiences, Verbal/Social Persuasions, And Physiological And Affective States, Renette Portecop-Prentice

Dissertations

Problem

Autism is a complex neurodevelopmental condition that presents challenges not only for autistic individuals, but also for their families, healthcare providers and school professionals. A significant number of children with autism spend most of their school day in general education classrooms with teachers who may lack autism-specific training and are unfamiliar with evidence-based practices for supporting autistic students. This lack of training or relevant resources specific to autism may impact teacher self-efficacy for educating autistic students, which in turn may affect instructional decisions and student outcomes. Guided by Bandura’s theoretical framework, this study examined the relationships among autism-specific training …