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Personalized Persuasion In The Digital Age: A Data-Driven Approach To Effective Communication, Annye Braca

Doctoral

This thesis investigates the potential of Machine Learning (ML) to personalize persuasive marketing messages. It explores the identification of individuals receptive to specific persuasion techniques based on their psychometric profiles. By developing ML models that incorporate these profiles, the thesis aims to predict the impact of tailored messages and improve the effectiveness of marketing communication.

Decreasing Food Waste In Home Kitchens By Increasing Food Literacy, Thao Rich

Student Publications

In a world that produces enough food for all of its occupants, a staggering amount of it bypasses empty stomachs and goes into landfills every day. There it sits in a plastic bag, which delays decomposition and increases the harmful greenhouse gas emissions. There are numerous reasons for the inequitable distribution of food ranging from politics to logistics, but the fact is that each person can make a dent in reducing their carbon footprint by simply reducing the amount of food they place in the trash each week. Food waste reduction is a small goal that requires no additional spending, …

"We'll Never Get This Opportunity Again": Lived Experiences Of Platform-Based Gig Workers, Catey Hoehn

Cal Poly Humboldt theses and projects

Platform-based gig work has rapidly expanded in the United States, leading to growing concerns about economic precarity, algorithmic management, and the sustainability of labor performed through apps. Gig work has been accused of fostering exploitative conditions, masking control through the language of flexibility, and deepening cycles of debt and insecurity for workers. However, the lived experiences of gig workers often reveal complexities that differ from public narratives and company portrayals. This thesis builds on sociological studies of labor precarity to examine how platform-based gig workers experience, internalize, and resist algorithmic control. Utilizing qualitative semi-structured interviews, fifteen rideshare and delivery drivers …

Twice-Exceptionalism And The Complexity Of Supporting Students Who Are Both Gifted And Disabled, River Johnathon Taylor

Cal Poly Humboldt theses and projects

Drawing on ideas from disabilities studies about compulsory able-bodiedness as well as experiences of disability being fluid and context dependent, this study posits that giftedness, just like disability, is a complex multidimensional form of identity that is both context and temporally dependent. Twice-exceptionalism is defined as an identity in which an individual is gifted in at least one domain of human productivity and manifests at least one disability. Students with unique learning needs (students with disabilities, students with giftedness, and students with twice-exceptionalism) face many complex challenges within Humboldt County, California. Twenty-five educators from Humboldt County working across all grade …

"Gen Z Climate Being": Podcast Series On Youth, Climate Emotions, And Affective Climate Justice, Rachel Wynne Moszkowicz

Cal Poly Humboldt theses and projects

My project is a co-created 6 part podcast series with youth and the program lead from the Climate Mental Health Network’s Gen Z Advisory Board informed by affective climate justice, youth, mental health and education. This work foregrounds the embodied climate knowing and being of youth climate activists, offers ideas for a different relationship to climate change and climate education futures. In this podcast, Gen Zers speak to the youth mental health crisis as it relates to climate. My thesis project engages with and invites conversations that reflect the climate itself, which is non-linear, complex, porous, creative, expansive, and woven …

Resource Guide To Evidence Based Practices For Children With Autism Spectrum Disorder, Guadalupe Cruz

Cal Poly Humboldt theses and projects

This project seeks to support new teachers who are in their first five years of teaching in the special education field using engaging and visually stimulating infographic tools. Through the analysis and review of evidence-based practices literature and NPDC training. This series of teacher-accessible resources compiles introductory information about 10 most commonly seen Evidence Based practices in the elementary special education settings. Through these resources, the goal is to increase informed decision-making among the IEP team, strengthen teacher confidence, and facilitate EBP implementation in the real-world setting.

An Assessment Of The California Logging Workforce, Kendra Jean Gerstenberg

Cal Poly Humboldt theses and projects

There is limited literature describing the capacity and capabilities of the logging workforce in California. This study examines the logging workforce in California to quantify the number of logging crews, assess demographic diversity, and evaluate capacity and capabilities. The target population was California Licensed Timber Operators (LTOs) who have the legal right to harvest timber. A survey was developed and distributed to LTOs on the CAL FIRE database. Surveys were also distributed at regional logging conferences or collected by phone. Data were analyzed using Statistical Package for the Social Sciences (SPSS) and emergent coding for follow-up interviews was conducted. There …

An Exploratory Attempt To Incorporate Social Criteria Into Spent Nuclear Fuel Site Screening And Relocation, Julie M. Sorfleet

Cal Poly Humboldt theses and projects

Spent nuclear fuel, also known as nuclear waste, is the byproduct of nuclear power generation. The need for safe and responsible long-term storage and disposal of radioactive fuel presents significant technical and social challenges. These challenges are compounded by several factors, including the emerging nuclear renaissance in the United States, climate and coastal hazards, and the lack of consolidated interim or permanent storage. This research explores perceptions of risk, relocation, and siting spent nuclear fuel, predominantly focusing on Humboldt County, California. I used online surveys, the Analytic Hierarchy Process, and geographic information systems (GIS) analysis to inform how social and …

Comparison Of The Division And Fairness Of Household Labor Between The 1980s And Early 2000s, Madeline Rose Provins

Cal Poly Humboldt theses and projects

The purpose of this thesis is to examine change in the gendered division of household labor between the 1980s and early 2000s. The division of household labor has historically been inequitable reflecting parallel social hierarchies, power imbalances, and systemic inequalities outside the home.

I used a cohort sample of 1,157 respondents combined from the 1988 Wave 1 of the National Survey of Family and Households (NSFH) and the 2003 Wave 3 to test four hypotheses related to gender and household labor. I found that between 1988 and 2003, the gender gap closed in mean hours a week devoted to indoor …

All Red Inside: Embodied Metaphor In Clive Barker's Books Of Blood, Ian Vargas

Cal Poly Humboldt theses and projects

The collection Books of Blood is an anthology series of short stories written between 1984 and 1985. Only two, the very first and last, have any unifying story. For our purposes we will be looking at stories in particular that exemplify the themes I am speaking about. Barker's writing often heavily focuses on the ways that the body stands outside the control of the individual, something that a person resides in and must always rely upon, but is not actually in their control in most senses. His horror explores the ways in which the human body is both the first …

Housing Cal Poly Humboldt Students, Andrea Santamaria

Cal Poly Humboldt theses and projects

Student Housing & Residence Life at Cal Poly Humboldt has been consistently critiqued for the shortage of spaces available and unsuitable student placements. Student input from a 2024 survey is used to call for affordable and equity-based housing accommodations. Results showed that the first factor students consider when selecting between housing options is Cost. More incentives are needed to recruit a higher number of students living on campus. 33.88% (41 students) prefer to live on campus regardless of obstacles or challenges. 66.12% (80 students) would rather live off-campus. Improving housing experiences can decrease low retention, graduation, and recruitment rates, as …

Snag Failure And Fuel Recovery Following Stand-Replacing Fire In The Klamath Mountains, Joseph R. Nicholas

Cal Poly Humboldt theses and projects

High-severity wildfires can produce extensive patches of standing dead trees (snags), which later contribute to surface fuel loading and present a hazard as they decay and fall. In the Klamath Mountains of northwestern California and southwestern Oregon, recent increases in the occurrence of large stand-replacing wildfires have raised concerns about fuel and vegetation recovery trajectories, the likelihood of future fires, and resulting impacts to local communities. Nevertheless, the post-fire environment may offer opportunities to enhance ecological and community resilience. Estimates of snag failure and fuel loading can support land management planning and risk assessment following wildfire, though such work is …

Grieving In Doorways: A Critical Autoethnographic Exploration Of Embodied Knowledge Amid Shifting Reality And Radical Possibility, Holly Rae

Cal Poly Humboldt theses and projects

This thesis is a critical autoethnographic exploration of embodied knowledge amid shifting reality and radical possibility. Beginning and ending with my own body, I explore how grief, as an embodied companion, offers wisdom and power in moments of profound change. Rooted in a methodology of slowness, rest, walking, and active listening, this work resists the extractive pace of modernity and instead invites building a relationship with grief and discomfort. This research is an experiment in co-creating knowledge with bodies and their intersectionality within systems that would keep us separate from knowing our embodied knowledge. As a location of research for …

Investigating The Role Of Motivation In Open-Label Placebo Responses, Joshua Worthington

Cal Poly Humboldt theses and projects

Placebo effects occur when an individual receives an inactive treatment that should be unable to provide therapeutic benefits but still demonstrates meaningful improvements in health. Open-label placebos extend this phenomenon by providing full disclosure to individuals that they are receiving a placebo, as opposed to traditional placebo treatments that utilize deception. The role of expectancy as a mechanism of change in placebo has received some mixed results in open-label placebo studies. To the author’s knowledge, motivation for change has not been examined in open-label placebo. The current study examined the role of motivation as a mechanism of placebo responses. To …

Multi-Grade Classroom Professional Development And Curated Resources, Angie Marshall

Cal Poly Humboldt theses and projects

This project aims to provide educators and administrators with a comprehensive compendium of resources for effectively designing and implementing instruction in multi-grade classrooms. Limited research exists to support teachers who may struggle with the complexities of teaching multiple grade levels within a single classroom setting. Traditionally, educators obtain their teaching credentials, secure employment, and are expected to effectively instruct the students. However, when assigned to a multi-grade classroom, the instructional demands become significantly more intricate and potentially overwhelming.

The objective of this professional development and resource guide is to equip teachers and administrators with a structured resource to enhance the …

Empowering Former Hispanic Student-Athletes To Become Leaders In College Athletics: An Identity-Specific And Assets-Based Leadership Training Program For Career Advancement, Raquel Orozco

Cal Poly Humboldt theses and projects

This work examines the complexities of navigating dual identities as emerging Hispanic women leaders in the spectrum of college athletes, and how Hispanic women can face personal and societal challenges when it comes to transitioning from college and then into the professional world.

By examining multiple assets that are rooted in Hispanic women’s culture, this project presents a leadership workshop by utilizing the ADDIE instructional design model. Each module of the workshop is clearly described, offering community building activities, self-reflections, and the opportunity to complete a leadership profile portfolio.

First-Year College Transition: The Role Of Psychosocial Resources In Student Motivation, Hayley Weatherill

Cal Poly Humboldt theses and projects

First-year students transitioning to college culture have various areas of concern during this developmental period. Adolescents and young adults focus on creating and maintaining social connections while navigating a new environment and keeping up with their academics. With rising tuition costs, economic uncertainty, and pressing social challenges, many students enter college under significant stress. Navigating these challenges successfully requires motivation and support to persist through the first year and beyond. This project explored how college institutions support first-year students’ transition to higher education by helping students fulfill the three basic psychological needs of self-determination theory: autonomy, competency, and relatedness. When …

“Thanks For The [Land] Acknowledgement, Now What?”: Settler Histories And Decolonial Futures At Cal Poly Humboldt’S Schatz Tree Farm, Sangeeta Sarkar

Cal Poly Humboldt theses and projects

As California’s newest polytechnic university, Cal Poly Humboldt is often lauded for its Indigenous-facing programming and commitments to Indigenous peoples. In recent years, Native American Studies faculty, staff, and students, alongside Indigenous community partners, have led conversations about Cal Poly Humboldt meaningfully supporting tribal sovereignty by returning land to Native nations. As Cutcha Risling Baldy summarized in a research interview, “Thanks for the [land] acknowledgement, now what?” (2024, personal interview). However, though Cal Poly Humboldt has made various land acknowledgements and references to Indigenous peoples in its university policies, conversations about #LandBack have been met with resistance from the university. …

Can Dyslexia Diagnosis Induce A Stereotype Threat Effect? A Literature Review And Research Proposal, David H. Harris

Cal Poly Humboldt theses and projects

Dyslexia is a recognized psychiatric diagnosis in the DSM-5, categorized as a specific language disorder. Dyslexia is a hidden disability that affects how individuals process auditory and visual information. Many people have heard of dyslexia but it is largely misunderstood, even by educational professionals, and its general association with learning disability can be the basis for negative stereotyping and discrimination of people with dyslexia. The ‘Stereotype threat effect’ is a term from social psychology research referring to situations where one’s performance on a task is influenced by their identification with a social group that has a well-known stereotype about their …

Social Emotional Learning: Through A Culturally Relevant And Spiritual Lens, Albert Roman

Cal Poly Humboldt theses and projects

In today’s diverse educational landscape, the importance of integrating social-emotional learning (SEL) into secondary English language arts classrooms cannot be overstated. This master’s project endeavors to address this need by developing a series of innovative SEL lessons tailored specifically for secondary ELA teachers. Grounded in the principles of culturally relevant and sustaining pedagogy (CRSP) and enriched with insights from spiritual pedagogy (SP), the project aims to cultivate a holistic approach to education that nurtures students’ emotional well-being, cultural identity, and spiritual growth. The project is structured around the five pillars of SEL: self-awareness, self-management, social awareness, relationship skills, and responsible …

Testosterone Reactivity And Parental Care Motivation In Men As A Function Of Parental Status, Nathan Boone

Cal Poly Humboldt theses and projects

Paternal investment and caregiving quality have lasting impacts on children's well-being. Children with sensitive, involved fathers typically develop more secure attachments and have fewer behavioral and psychological problems than children with less sensitive and involved fathers. While the importance of fathers’ engagement with their children is well established, the biological mechanisms that underpin paternal behavior are not fully understood. Previous research has found that baseline testosterone levels and testosterone reactivity to infant stimuli are both relevant predictors of paternal sensitivity. Short-term decreases in testosterone in nurturant contexts, and short-term increases in testosterone in challenging contexts have both been linked to …

Goal Setting In Sleep And Nutrition To Improve Perceived Performance In Active College Students, Cameron F. Timmons

Cal Poly Humboldt theses and projects

This study looked at goal setting in sleep and nutrition on healthy active college students aimed to improve their perceived performance, resting metabolic rate, body composition, and overall well-being. The six-week-long intervention had two groups: a control (n=5) and intervention group (n=6). Both groups received an initial coaching session and guidance for self-motivated online goal setting, completed weekly check-ins asking about their sleep and nutrition quality and quantity, and perceived performance, then they would set small goals aimed at improving their sleep and nutrition. The control group set their own goals every week with their online weekly check-ins, and the …

Roosting Habits Of Male Silver-Haired Bats In The Willard Creek Drainage Of Northeastern California, Alexander Christopher Lewis

Cal Poly Humboldt theses and projects

Silver-haired bats (Lasionycteris noctivagans) are one of the most widely distributed forest bats in North America. Although wildfires have been increasing across their range, how they respond to wildfire is understudied. Previous studies on silver-haired bats and fire focused on roosting behavior in low-severity controlled burns or used acoustics to understand activity levels post-wildfire. Quantifying how silver-haired bats use the physical structures created by high-severity wildfires and the landscape features in which they occur is critical in the face of rapidly shifting fire regimes. During the summer of 2023 and 2024 I radio-tracked male silver-haired bats to 37 roosts …

True Crime Podcasts As A Scene Of Feminist Reckoning: A Comparative Analysis Of My Favorite Murder And Sistas Who Kill, Rachel C.C. Matteri

Cal Poly Humboldt theses and projects

This research examines the cultural impact and ethical implications of true crime podcasts (TCPs). In recent years, TCPs have become a powerful cultural force, with White women often emerging as the primary storytellers and most visible participants in the genre. Their dominance in this space is not neutral and it carries representational weight. It explores the potential for feminist activity made possible by the auditory, self-publishing genre of podcasting. This work focuses on the buddy-comedy subgenre of TCPs. The concerns of this text are that TCPs are dominated by White feminist values and are not an intersectional feminist project. Textual …

Effects Of Teacher Reinforcements On Student Outcomes In Adapted Physical Education: A Meta-Analysis, Yaxeny Moreno

Cal Poly Humboldt theses and projects

The primary goal is to review the influence of reinforcement strategies in Physical Education (PE) and Adapted Physical Education (APE) settings, focusing on students with disabilities with the ages of 3-22. Reinforcement strategies, such as positive reinforcement/feedback, token economies, verbal praise, tangible rewards, and additional strategies are essential for fostering engagement and skill development. Literature has provided evidence and results to highlight the importance of applying evidence-based reinforcement strategies to which support the behavioral, social, and physical development of students in both Physical Education and Adapted P.E. settings. The purpose of this study was to review and analyze existing literature …

Facilitating On-Task Behavior In Physical Education For Learners With Asd Through Special Interest Modified Materials: Antecedent-Based Intervention, Gary Smith

Cal Poly Humboldt theses and projects

Children with Autism Spectrum Disorder (ASD) are affected in the areas of social skills, communication, and restrictive and repetitive behaviors that can lead to barriers in accessing physical education (PE). School-based PE helps children learn how to develop the knowledge, skills, and confidence to live physically active lifestyles. The purpose of this current study is to implement an antecedent based intervention using special interest materials to increase on task and engagement in learners with ASD in PE activities. The intervention showed modest to minimal improvements in on-task behavior and performance for two of the three participants, with high variability and …

An Analysis Of Uv Disinfection Of Municipal Wastewater Following Natural Treatment Systems, Jonathan Andrew Kirchubel

Cal Poly Humboldt theses and projects

On January 30, 2024, the City of Arcata replaced chlorine with ultraviolet (UV) irradiation as its disinfection method for treating its wastewater prior to discharging to Humboldt Bay. The Arcata wastewater treatment facility (AWTF) utilizes natural treatment systems for treating its secondary effluent, which can provide issues for UV disinfection through variance in turbidity, total suspended solids (TSS), pH, humic acids, and color. This project aimed to identify whether the water quality characteristics of natural treatment systems in the AWTF would impact UV disinfection of municipal wastewater.

Thirty-one sampling periods occurred between June 8, 2024, and March 1, 2025, recording …

Breaking Barriers: The First-Generation Experience In Pursuit Of The American Dream, Milagros Ortega

Cal Poly Humboldt theses and projects

This project examines the common misconceptions surrounding First-Generation Latino college students and challenges the dominant narrative that portrays them as unprepared, unsupported, and unmotivated. Through narrative and content analysis of the short films, Ni de Aquí, Ni de Allá and Turns in the Road, this project explores the overlapping challenges that complicate their educational journeys. These challenges, financial instability, lack of guidance, and sociocultural dissonance, represent three core barriers commonly faced by first-generation Latino college students. Guided by theoretical frameworks such as the Immigrant Optimism Hypothesis, W.E.B Du Bois’ theory of double consciousness, Gloria Anzaldúa’s concept of Nepantla, and Yosso’s …

Bat Species Diversity In The Klamath Basin Prior To Dam Removals, Ryan Page Matilton

Cal Poly Humboldt theses and projects

River ecosystems make up a small percentage of the earth’s surface, but they support high levels of biodiversity and attract high levels of human use. Dams, for example, disrupt a river’s natural course and flow, alter water temperatures in the stream, redirect river channels, transform floodplains, and fragment river continuity, which affects ecological balance and food webs. The Klamath River in northern California, which has been dammed for the last century, experienced dramatic disruptions including a large fish die-off in 2002. With the negative impacts of the Klamath dams apparent, multiple entities negotiated to remove the dams and restore the …

Modeling Forest Stewardship In Goukdi’N: An Assessment Of Carbon, Wildlife Habitat, And Fire Resilience In A University Forest, Benjamin Stock

Cal Poly Humboldt theses and projects

This thesis presents a forest management plan for Goukdi’n (also known as the Jacoby Creek Forest University Tract), a coast redwood–tanoak–Douglas-fir forest within the ancestral homelands of the Wiyot Tribe. This project addresses the need for a forest stewardship approach that supports ecological resilience, cultural values, and long-term forest health in a landscape shaped by industrial logging, fire exclusion, and decades of under-management. To evaluate potential management pathways, forest growth modeling was conducted using the USFS Forest Vegetation Simulator (FVS) to compare three management prescriptions focused on carbon storage, fire resilience, and structural heterogeneity and a no-action alternative. Model outputs …