Digital Commons Network^™

Machine Learning For Predictive Energy And Emissions Modeling Of Vehicles And Power Grids In The United States, S M Tanvir Faysal Alam Chowdhoury

Dissertations

The environmental benefits of electric vehicle (EV) adoption depend on more than replacing internal combustion engine vehicles with electric powertrains. EV adoption reshapes electricity demand, interacts with regional generation mixes, and influences travel behavior and congestion, creating a coupled transportation-energy system in which vehicle and power-plant emissions must be evaluated together. This dissertation develops machine-learning frameworks for predicting energy consumption and emissions from vehicles and power grids under rising EV adoption. The first component forecasts grid emissions from EV charging. Using simulation data from NREL's Cambium database, a Prophet-based time-series framework predicts carbon dioxide, nitrous oxide, and methane emission rates …

Listening To Fire: Using Passive Acoustic Monitoring To Detect And Explain Prescribed Fire Effects On Avian Communities In Oak-Hickory Forests Of The Central Hardwood Region, Wesley Petty

Dissertations

Prescribed fire is an increasingly important tool for restoring oak-hickory forests in the Central Hardwood Region, yet its effects on avian communities remain poorly understood because traditional monitoring methods cannot easily capture wildlife responses across the large spatial and fine temporal scales at which fire effects unfold. This dissertation develops and tests a framework for using passive acoustic monitoring (PAM) to detect prescribed fire effects on avian communities and to explain the ecological mechanisms behind them. Acoustic data were collected at Giant City State Park and Touch of Nature Environmental Center in southern Illinois across six recording sites for seven …

Knowledge, Physician Communication, And Psychological Predictors Of Willingness To Engage In Dementia Risk Reduction Across The Lifespan, Thomas Fisher

Dissertations

Dementia represents a growing global public health concern, with increasing evidence suggesting that a substantial portion of dementia risk may be attributable to modifiable lifestyle and health-related factors. However, relatively little is known about public knowledge of these risk factors, willingness to engage in dementia risk reducing behaviors, and psychological factors that may be associated with willingness. The present study examines these factors among adults living in the United States across the lifespan. Participants (N = 308) completed an anonymous online survey assessing dementia risk-factor knowledge, willingness to engage in dementia risk reducing behaviors, primary care provider communication regarding dementia …

Black Adolescents' Understanding Of Racial Trauma: An Interpretive Phenomenological Analysis, Winifred Wilson

Dissertations

Over the past two decades, scholars have increasingly recognized that chronic stress from racism can cause racial trauma in Black individuals. However, research on the impact of racial trauma on Black adolescents remains limited. Understanding the language and experiences of Black adolescents is essential for identifying and addressing the biopsychosocial effects of racial trauma. This study used interpretive phenomenological analysis to examine how 12 Black adolescents (9 boys, 3 girls, aged 14-17) from the Midwest conceptualize, experience, and cope with racial trauma. Participants completed two interviews: an initial session exploring their understanding and experiences, and a member-checking interview (completed by …

Analysis Of A Process-Based Approach To Case Formulation And Treatment With Acceptance And Commitment Therapy, Callum Smith

Dissertations

Process-Based Therapy (PBT) is a novel approach to clinical research and practice. PBT is proposed as an alternative model to classic diagnostic frameworks. It emphasizes conceptualizing psychological problems through adaptive and maladaptive processes of change. The aim of current PBT research is to develop reliable methods of organizing change processes into network models. In network models, change processes are presented in nodes connected by lines and arrows to represent the interacting relationships between those processes for a given individual. The present project aims to evaluate the inter-rater reliability and predictive validity of a novel semi-structured interview method to aid in …

A Qualitative Study Of Immigration Trauma, Posttraumatic Growth, And The College Experience Among Mena Immigrant Students, Braa A. Elkhidir

Dissertations

Middle Eastern and North African (MENA) immigrant students who are seeking to earn a higher education in the United States have to navigate acculturative stressors and systemic barriers. Prior research has focused primarily on the challenges MENA immigrant students experience without deeply exploring how these students adapt and grow. The focus in this qualitative study was to understand how MENA immigrant college students experience and make meaning of their academic journeys. Semi-structured interviews were used to explore the academic experiences of seven MENA immigrant college students in the United States and assess how acculturative stressors, personal strengths, coping strategies, and …

Love’S Dialects: Proposed Additions In Emotionally Focused Therapy For Intercultural Couples, Nicola Heurich

Dissertations

Intercultural romantic relationships have become an increasingly prominent feature of contemporary society due to globalization, migration, and cross-cultural exchange (Livingston & Brown, 2017). However, these partnerships are also associated with elevated levels of relational distress and higher rates of conflict, separation, and divorce, underscoring the need for culturally responsive approaches in couple therapy (Bustamante et al., 2011; Genç & Su, 2021).

Research on intercultural couples remains limited both within and beyond Emotionally Focused Therapy (EFT), and despite increased recognition of cultural factors, there is still insufficient guidance on navigating differing cultural contexts within a dyad (Linhof & Allan, 2018).

The …

Adverse Childhood Experiences And Juvenile Offending: Client-Factor Variations And A Novel Intervention Approach, Madison M. Dobreff

Dissertations

Adverse childhood experiences have consistently been identified as risk factors for juvenile offending. However, this relationship is complex and varies based on individual factors. This critical literature review not only examined the current research on the relationship between adverse childhood experiences and juvenile offending but also identified client factor variations that influence the relationship. Client factors examined throughout include race/ethnicity, gender, age, internalized and externalized mental health symptoms, positive internal factors, familial and external social support, educational engagement, environmental factors, and positive childhood experiences. The relationship is further complicated by examining the effects of multiple client-factor variations on the adverse …

A Primary Care Randomized Controlled Trial Investigating The Efficacy Of A Caregiver-Focused Prevention Program For Child Sexual Abuse, Cassandra Dukes

Dissertations

Child sexual abuse (CSA) affects 1 in 4 girls and 1 in 13 boys before the age of 18, resulting in significant long-term physical, emotional, and social consequences. Caregivers play a crucial role in preventing CSA by engaging in preventative behaviors with their children. Primary care settings may be an avenue through which to educate caregivers on their role in prevention of CSA. The present study used a randomized controlled trial (RCT) design to investigate the efficacy of a caregiver-focused educational program to prevent CSA, provided via integrated behavioral health (IBH) in a pediatric primary care setting. Participants (n=56) were …

Establishing And Validating Foundational Competencies In The Application Of Behavioral Gerontology Through Expert Consensus, Alexandra Doran

Dissertations

Behavioral gerontology continues to evolve and grow as an application of behavior analysis, but there remains a critical need to define competencies necessary for behavior analysts to provide ethical, effective care within their scope of competence. This study sought to establish and validate foundational competencies for Board Certified Behavior Analyst s® (BCBA s® ) working in this area. A mixed-methods design using three experiments was used. In Experiment 1, a review of discipline-specific competency frameworks and a job mapping process yielded a preliminary set of behavior-analytic competencies for behavioral gerontology. This produced a preliminary framework consisting of 142 competencies. Experiment …

The Impact Of Using History On Learning In Physics Laboratory Settings, Patrick W. Clouse

Dissertations

Integrating History of Science (HOS) into science courses has many benefits. Students demonstrate improved scientific content knowledge, develop their understanding of Nature of Science (NOS), and improve their attitudes towards science. However, barriers prevent instructors from effectively incorporating history into their teaching. The traditions and culture of science instruction, individual teacher attitudes and skills, existing institutional frameworks, and prevailing curricular materials all prevent HOS integration. Preservice teachers may never be exposed to HOS in their science or education courses, meaning they lack experience and knowledge surrounding the benefits of HOS. Therefore, alternative avenues for effective integration should be considered to …

Bridging The Gap: Action-Oriented Vs. Community-Minded Mentalities And Behaviors In Cold Case Investigation Units, Samantha Strine

Dissertations

One key group in policing that has seen an increase in public and media attention but not research is the cold case investigation unit. These units tend to be more “bureaucratic”, focusing on communication, community-engagement skills, and “desk work”. Thus, this is a potential area for learning techniques and policies that shift the mentalities within police culture to be more accepting of new community focused policies. This study also seeks to address a gap in current research related to studying specialized police units.

The purpose of this study is to describe the organizational dynamics and officers’ tactics, perceptions, and interactions …

Masculinity, Psychological Flexibility, And Machismo: An Initial Examination Of Relationships To Interpersonal Violence, Geraldine Granados Todd

Dissertations

Intimate Partner Violence (IPV) is a grave problem in many areas of the world. Latin American countries have some of the highest rates of IPV in the world. One factor potentially impacting these rates has been hypothesized to be traditional machismo. Machismo is a complex construct that has proven difficult to define. A substantial challenge lies in distinguishing the characteristics that are unique to machismo from broader masculine gender role norms. Additionally, machismo seems to have a more “positive” side to it, encompassing loyalty to family, honor, and responsibility. This has been coined caballerismo. Studies looking at the impact of …

Severity-Informed Analysis Of Staff-Worn Personal Protective Equipment Use In An Applied Behavior Analysis Clinical Setting, Trey Ximenez

Dissertations

Staff who provide care for individuals with autism spectrum disorder and intellectual disability experience high workplace injury rates, particularly in applied behavior analysis settings (Hardesty 2020; Hardesty et al., 2025; Romani et al., 2020). Despite these elevated risks, organizations lack evidence-based criteria for determining what protection to recommend to staff based on documented injury outcomes (Irwin Helvey et al. 2024). This study examined how staff injury characteristics are associated with staff-worn personal protective equipment (PPE) use in an inpatient neurobehavioral unit. A retrospective analysis of 1,998 staff injury incidents from 105 patients (2020-2024) tested whether injury severity, injury type relevance, …

Exploring Perceptions Of Self-Efficacy Among Newly Graduated Nurses In The Labor And Delivery Unit After The Use Of Rapid Cycle Deliberate Practice For Obstetric Emergencies, Amber L. Hulsey

Dissertations

Background: The average turnover rate among newly graduated nurses (NGNs) in the United States is 25-30% within their first year, with increased rates in high-stress units like obstetrics and critical care. Many risk factors contribute to the high turnover rate of NGNs, but one modifiable factor is feelings of self-efficacy. Studies have shown that simulation training can increase self-efficacy in obstetric emergencies. This study was conducted to explore feelings of self-efficacy among NGNs working in the labor and delivery unit after a rapid cycle deliberate practice (RCDP) simulation of an OB emergency.

Methods: The study used a descriptive …

The Use Of A Sepsis Escape Room Simulation To Enhance Undergraduate Nursing Student's Clinical Judgment, Alaina Peterson

Dissertations

Background: Less than 10% of new graduate registered nurses meet practice-ready expectations for clinical judgment competencies, and 52% of critical care nurses are unable to adequately define sepsis. Traditional clinical rotations offer inconsistent exposure to high-acuity, low-frequency events such as sepsis, leaving new graduates unprepared for independent practice. Escape room simulations use the proven effectiveness of high-fidelity simulations with gamification to develop clinical judgment through active learning, teamwork and problem-solving.

Objective: The purpose of this project was to determine the effectiveness of a sepsis escape room simulation to improve perceived clinical judgment skills of undergraduate nursing students. The intervention was …

Exercise Self-Efficacy And Physical Wellness In A Worksite Wellness Program: Exploring Factor Structure And Perceptions, Micah B. Mcglathery

Dissertations

Exploring Perceptions of Exercise Self-Efficacy and Physical Wellness in a Worksite Wellness Program

Abstract

Worksite wellness programs are increasingly adopted to address insufficient exercise participation and other health-related behaviors that put employees at risk of chronic disease. Although quantitative outcomes are well-documented, there is limited research exploring how employees perceive these programs' impact on personal behavior change, particularly in relation to exercise self-efficacy. Guided by the Social Cognitive Theory and the Exercise is Medicine initiative, this study qualitatively investigates employee perceptions of a worksite wellness program’s influence on physical wellness and confidence to exercise. A phenomenological approach using semi-structured interviews …

"Girl I'Ll Figure It Out": First-Generation Women Of Color Navigating Higher Education, Prisilla Cortez

Dissertations

This qualitative study focused on understanding the experiences of first-generation women of color at a California public four-year institution and how their intersecting identities shape their academic experiences and overall well-being. Women of Color Feminist (Crenshaw, 1991), and intersectionality frameworks guided this study. Semi-structured interviews were used to collect data, and thematic analysis was used to identify patterns in participants’ experiences. Findings revealed three central themes, collective orientation and familial expectations, faculty interactions and sense of belonging, and institutional resources and access. Participants described navigating higher education while balancing family responsibilities, financial pressures, and academic demands. Although they demonstrated resilience …

Selected California State University Cybersecurity Readiness Policies And Related Guidance For Staff: A Qualitative Document Analysis, Andrew Hung-Nguyen

Dissertations

This study examines the cybersecurity and data privacy policy guiding the staff in the following four California State University campuses: Long Beach, San Bernardino, Chico, and Northridge. The purpose is to evaluate how institutional policies communicate expectations for staff and support cybersecurity readiness. Using a qualitative document analysis approach, the study analyzes publicly available policy documents as primary data sources. The analysis is guided by three frameworks, as follows: Weidman’s framework (2018), which assesses the presence of key policy elements; Karakoç’s framework (2022), which evaluates the depth of policy content; and the Flesch Reading Ease and Flesch-Kincaid Grade Level formulas …

Rewriting The Plan: Environmental Justice, Community Resistance, And Governance Power In Hollister, California, Rolan Resendiz

Dissertations

This dissertation examines how community-led resistance in Hollister, California, challenged environmental injustice and infrastructure governance through grassroots civic action. Focusing on the Hollister Guardians, a coalition of primarily Latinx residents who organized in response to concerns about the city’s sewer system, this qualitative case study introduces the Critical Just Sustainability Policy Praxis (CJSPP) framework, developed by integrating Critical Policy Analysis and the Just Sustainability Paradigm with a praxis-oriented focus on community action. Using critical document analysis of city council meeting minutes, local media coverage, and community-authored texts mainly from 2023 to 2025, the study explores how policy discourse, institutional decision-making, …

Examining Beliefs Of State Department Of Education Directors Of Assessment Regarding Standardized Testing, Sara L. Kendallen

Dissertations

Directors of assessment in state departments of education are tasked with the planning and oversight, including development, field-testing, validation, and operationalization of statewide assessments. At the state level, directors of assessment are pivotal to a department of education’s ability to meet state and federal testing requirements. Directors of assessment hold their own opinions and beliefs, which may or may not be aligned with current adopted policies. The beliefs of those in state level educational bureaucracies about standardized testing has not been well-researched. It is hoped that this research will add to the greater understanding of statewide assessment. The goal of …

Ensuring Effective, Efficient, And Equitable Libraries In A Post-Pandemic Community College Environment, Jeffery M. Sundquist

Dissertations

Using a case study model, this dissertation investigated student needs regarding library support in a post-pandemic community college environment, using data from student focus group interviews. These needs were juxtaposed with perceived student needs using library employee survey data. Based on the interpretation of data grounded in a critical librarianship framework, the author created action items for college library leaders. To provide effective, efficient, and equitable onsite libraries and library services, the author recommends (a) designing for psychological safety and belonging, (b) embedding visible human support, and (c) conducting equity-oriented space audits. To provide effective, efficient, and equitable online libraries …

Out Of The Briar Patch: Storying Resistance Among Black Male Survivors Of Childhood Sexual Abuse And Its Impact On Their Educational Experiences, Anthony Animuntu

Dissertations

This study examines the lack of support within educational settings for Black boys who are survivors of childhood sexual abuse (CSA). Despite growing attention to trauma-informed practices, the experiences of Black male survivors remain largely absent from educational research. Using a qualitative, phenomenological approach informed by critical autoethnography, semi-structured interviews were conducted with five African American men reflecting on their schooling experiences as CSA survivors. Axial analysis revealed four central themes: silence as survival and strategic invisibility, shame and internalized distress, institutional misrecognition, and the transformative role of relational care and educational kinship. Findings indicate that participants’ trauma was often …

Can Curriculum Improve Confidence? Examining The Impact Of The Implementation Of The California Math Framework On Math Anxiety Levels Of Preservice Teachers In California, Amanda Lubbs

Dissertations

In 2010, the state of California adopted the Common Core State Standards (CCSS) as an effort to ensure students were graduating high school as college and career ready. Shortly after, in 2013, the California Board of Education adopted the California Math Framework (CMF) as a tool for schools to implement the CCSS for Mathematics (CCSSM). Its recommendations incorporated research-based techniques to alleviate math anxiety through the use of explorative learning experiences that help students understand math skills in applied contexts, and by de-emphasizing rote practice and memorization. This study inquires about the framework’s effectiveness in mitigating math anxiety among pre-service …

"A Door To The Future." A Case Study In Exploratory And Culturally Sustaining Theater Curriculum, Verónica Meza

Dissertations

This study addresses the persistent inequities in access to quality arts education for Latino immigrant and linguistically diverse communities in California. Despite progressive initiatives such as Proposition 28 (The Arts and Music in Schools Act) and the California Arts Council's Racial Equity Statement, systemic barriers prevent Latino and immigrant students from benefiting equitably from the arts. The central objective of this project is to understand how an exploratory, culturally sustaining theater curriculum can serve as a transformative and healing vehicle for adult immigrant Latino students, providing emotional protection, cultural affirmation, and language preservation within a U.S. educational context. This qualitative …

An Untouched Gem: Understanding Parental Perceptions On Community College Attendance, Harshdeep Singh Nanda

Dissertations

Community colleges serve as critical entry points into higher education, yet they continue to carry stigma, particularly within affluent communities where four-year institutions are often positioned as the expected pathway. While existing research has examined student and public perceptions, little attention has been given to how parents in affluent regions shape and transmit these narratives. This study investigated how parents in an affluent region of the San Francisco Bay Area perceive community college as a starting point for their children’s academic careers and how parents may contribute to shifting those perceptions. Using a convergent parallel mixed methods design, survey data …

Breaking The Glass Ceiling From The Ground Floor: Bipoc Women Classified Professionals’ Journey In California Community Colleges, Lusyna Kim Narvaez

Dissertations

This phenomenological study examined how women in classified professional positions navigate institutional barriers and access professional development within California community colleges. Using Critical Liberatory Feminist Pedagogy, Critical Race Feminist Theory, and Challenging Leadership Theory as analytical frameworks, the study explored the lived experiences of 18 participants across five Northern California community colleges through individual interviews and focus groups. Findings revealed three central themes: strategic communication as a survival mechanism, institutionalized exhaustion, and professional development as gatekeeping. Participants described employing calculated communication strategies to navigate workplace dynamics while minimizing personal and professional risk. The study illuminated how institutional structures create systemic …

Leadership, Identity, And Black Joy: The Career Trajectories And Experiences Of Black Administrators In The California State University System, Uchechukwu C. Ogamba

Dissertations

This study explores the experiences of Black mid- and upper-level administrators within the California State University (CSU) system, with a focus on career trajectories, institutional barriers, support systems, and mentorship. Black administrators are essential but continue to be underrepresented in higher education leadership and limited research focuses on their professional pathways and sustainability within the higher education systems. Guided by Black Joy Theory and Professional Identity Theory, this study uses survey data (n = 24) and semi-structured interviews (n = 8) to explore how Black administrators navigate leadership and create meaning within institutional environments. Quantitative findings highlight the importance of …

Understanding The Impact Of Transfer Orientation Leadership: Student Leader Perspectives At A Mid-Sized California University, Kaci Taylor Turpin

Dissertations

Community college transfer students represent a vital source of diversity for public four-year institutions; at the same time, declining enrollments heighten the need for stronger, more functional transfer pathways between community colleges and four-year universities, especially given the significant vertical transfer gap and the unique barriers transfer students face in student leadership roles. This semi-structured interview study explored the experiential knowledge of 14 first-generation transfer student orientation leaders to understand how they navigate institutional barriers in their on-campus employment. Findings reveal that these leaders navigated institutional barriers by relying on peer networks and drawing heavily on their navigational capital. Furthermore, …

The Primary Care Brief Intervention Competency Assessment Tool (Bi-Cat): Examining Reliability And Validity, Arielle Guillod

Dissertations

Within primary care, the Primary Care Behavioral Health (PCBH) model integrates behavioral health services into medical settings through brief, population‑based interventions delivered by behavioral health consultants (BHCs). Although effective performance in this role requires competencies distinct from traditional mental health practice, few psychometrically sound tools exist to assess clinical skills in primary care. The Brief Intervention Competency Assessment Tool (BICAT) is commonly used for this purpose but lacks published evidence supporting its reliability and validity. This dissertation examined the psychometric properties of the BICAT across two studies. Study 1 evaluated factor structure, internal consistency, and construct validity in a heterogeneous …