Christian Wolff's alternatively notated scores grant the performer several interpretive choices. These pieces feature symbols (known as "coordination neumes") that instruct performers when to begin and end a sound event in relation to the sounds being made around them, thereby generating a reactive improvisation between the musicians. Among these scores are five compositions that form the basis of this project: For 5 or 10 People (1962), In Between Pieces (1963), For 1, 2, or 3 People (1964), Septet (1964), and Edges (1968). Focusing on these pieces specifically, this dissertation explores the unique performance practices required by Wolff's indeterminate music and contextualizes that music within his career in classics and comparative literature, particularly with regard to the concept of translation, and within his creative communities. These creative communities include his fellow New York School composers, New York's wider downtown artistic scenes in the 1950s and 60s, and the experimental music scenes at Cologne and Darmstadt. While scholars such as David Behrman, Thomas DeLio, and Mark Nelson have addressed the interactive quality of Wolff's notation and the technical skills needed to execute his pieces, I argue that there are deeper processes at work in these compositions that go beyond typical discussions of …

This research study examined the implementation of an extended reality (XR) lab on a community college campus to facilitate student and faculty access to immersive learning resources. The study, conducted during one skills day, involved 46 students and was designed to understand if integrating immersive VR into emergency medical technician (EMT) education could enhance learner confidence and motivation, develop problem-solving and analytical thinking skills, and thus connecting the classroom learning with real-world application. The majority of participants reported increased motivation and engagement, alongside improvements in learning outcomes like knowledge retention and skill development. Applying the unified theory of acceptance and use of technology (UTAUT) model revealed performance expectancy, effort expectancy, social influence, and facilitating conditions as key determinants of VR adoption in EMT education. While no significant overall performance enhancement was observed, VR training showed potential to boost motivation, confidence, and specific performance aspects. Furthermore, student perceptions towards VR in EMT education were largely positive, thereby suggesting its utility in immersive scenario training, skill acquisition in a risk-free environment, enhancing learner engagement, and real-world situational preparedness. VR demonstrated promise as a transformative tool in EMT education, necessitating further research to fully exploit its potential in diverse learning environments.

Alcohol-related motor vehicle crashes are a major preventable cause of death in the United States. One potential factor that may modulate the influence of alcohol intoxication on driving-related decision-making is posttraumatic stress. The current study evaluated the influence of induction of acute trauma-related stress (via script-driven imagery) during alcohol intoxication (.06% BrAC) on driving-related risky decision-making – willingness to drive, driving-related decision-making (i.e., attempted red light runs), and driving-related reaction time (i.e., braking latency) – among 56 trauma-exposed (currently symptomatic) adult drinkers from the community (M = 25.32; 46.4% female). Results indicated that trauma-related stress may exacerbate willingness to drive during a state of acute alcohol intoxication, but, alternatively, may have only a minimal-to-moderate effect on performance-based, driving-related decision-making (i.e., red light runs), and a potentially mitigating impact on driving-related reaction time (i.e., braking latency) under the influence of alcohol. Generally, results suggest that trauma-related stress may differentially impact varying aspects of driving-related risky decision-making, above and beyond the influence of alcohol. Implications for theoretical modeling for driving-related decision-making during acute intoxication and for the advancement of education and intervention efforts, as well as suggestions for future directions, including methodological and procedural improvements, are discussed.

Students' self-determination (SD) can positively influence their ability to make choices in planning for their future. The current study is a preliminary validity study on the most recent 21-item version of Shogren and Wehmeyer's Self-Determination Inventory: Student Report (SDI-SR). The SDI-SR was administered to 316 students (ages 13-22) and results were examined with exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Results of the EFA on a 7-factor solution (TLI = 0.97; RMSEA = 0.04; SRMR = 0.02) aligned with the theoretical basis for the SDI:SR as well as results for the 7-factor CFA using simulated data (TLI = 0.913; RMSEA = 0.047; SRMR = 0.072 and CFI = 0.931); however, the CFA 7-factor solution results on the present study data were slightly lower than what is considered acceptable model fit (TLI = 0.883; RMSEA = 0.04; RMSR = 0.047). These results combined suggest that theory-based 7-factor solution does capture seven latent constructs in this data. A CFA was also conducted with a 5-factor structure based on factor loading from an EFA using the present research data resulting in a better model fit (TLI = 0.912; RMSEA = .075; SRMR = 0.046; and CFI = 0.940) as well as …

The transgender community in India, commonly known as hijras, consists of people who were born as males but address themselves as females. They have been considered as the third gender in India for millennia and have had specific religious and sociocultural values and roles, but are forced to live in shadows in this day and age. Isolation of this community is also reflected in the way transgender characters are represented in Indian entertainment media. The study analyses two transgender themed films semiotically and the audience reception of those representations by 20 members of the transgender community. Semiotics is a helpful tool to understand the ways signs communicate ideas to viewers. This study applies syntagmatic and paradigmatic analyses to understand how images are used to represent and relay information to the audience. Reception theory along with double colonization has been incorporated in this study to analyse the ways in which the transgender community interprets the representations in entertainment media.

The age-cutoff regression discontinuity design (RDD) has emerged as one of the most rigorous quasi-experimental approaches to determining program effects of prekindergarten on literacy and numeracy outcomes for children at kindergarten entry. However, few pre-K meta-analyses have focused attention on validity threats. The current random-effects meta-regression tests the moderating effects of prominent threats to validity, selection bias and sensitivity, on impact estimates generated from age-cutoff regression discontinuity studies from large-scale programs. Results from averaging dependent standardized mean difference effects suggested small positive moderating effects of total attrition and robust 3-month bandwidths on reading effects, but not on math. However, these results were not statistically significant. In contrast, results generated from robust variance estimation yielded a small statistically significant association between total attrition and math effects. These mixed results may warrant further research on prekindergarten evaluation methodology, evaluation estimation methods, and the totality of evidence used to inform policy.

This dissertation is organized in a traditional format while including three essays that address specific research questions. Essay 1 examined the relationship between physical activity and community engagement and their effect on mental well-being among older men and women. Data from National Health and Aging Trends Study (NHATS) from 2018 to 2020 were explored and the posited relationships were tested. This essay provides empirical support that older adults who are reasonably active and involved in the community have greater mental well-being than those who isolate themselves. Essay 2 provides insight into older adults' motivation to improve their physical activity through the use of a fitness tracker. The key finding from this study is that wearables, especially fitness trackers, can significantly facilitate increased physical activity. Essay 3 is a mixed-methods study to understand older adults' perception of the usefulness of fitness trackers and interaction with such devices. Findings suggest that to increase the adoption of fitness trackers among older adults, makers could improve the esthetics and quality of the wristband in addition to the battery life of the tracker.

Research has identified job context, specific attributes of professional development (PD), and perceived teacher input as factors that contribute to teachers' attitudes. This sequential mixed methods study tested those findings together and further investigated teachers' beliefs and attitudes about their own professional learning. The first phase of data collection included a 5-item attitude survey, demographic information, and two short-answer questions. Multiple regression analysis of the sample (N = 328) showed four statistically significant contributors to teacher attitude: (i) socioeconomic status of the school, (ii) teacher years of experience at the campus, (iii) content area taught, and (iv) degree attained by the teacher. During the second phase, six focus groups were conducted which confirmed earlier findings and revealed four themes in teachers' attitudes: (1) a need and desire for collaborative, engaging PD; (2) perceived interference from outside forces that supplant teachers' own PD goals and wishes; (3) a need to establish a context and a cohesive plan for long-term career and campus goals; and (4) a subgroup of teachers who believe that PD has little inherent value. Limitations and implications are included.

Mental health is an intrinsic capability that constitute an essential component of healthy aging. Mental health is constituted by positive constructs such as happiness and negative constructs (mental disorders) such as depression. As people grow older, they become more prone to developing mental disorders which are linked to poorer quality of life, increased disability, increased utilization and cost of health services, and higher rates of suicide. This dissertation involved three studies that focused on factors that predict change in mental disorders and happiness of older Americans over a period of five years. Two waves of publicly available national representative data from the National Social Life Health and Aging Project (NSHAP) collected in 2010 and 2015 were used. A total of 2210 older adults within the ages 62-90 years were used in the analyses. Mental health measures were CES-Depression scale, HADS anxiety scale, and self-rated happiness. Essay 1 aimed to identify the important aspects of older adults' interaction with their neighborhood that predict the presence of mental disorder and happiness. Essay 2 evaluated the psychosocial factors that predict change in mental disorder and happiness of older adults, whereas essay 3 investigated the multifactorial determinants of change in mental disorder and happiness …

Texas is the leading producer of renewable energy in the U.S, and Dallas-Fort Worth (DFW) is the largest metropolitan area in the state. Texas has a deregulated energy market, with three types of providers: privatized, public-owned, and co-operatives. Privatized providers compete in the deregulated market, and consumers choose between hundreds of electricity retailers. Public-owned providers are owned by the municipality, and electricity consumers that live within the city limits must use the municipal provider. Electric co-operatives operate similarly where customers within the region must use the co-operative, but instead of being owned by the city, co-ops are owned by the members (customers). To date, the availability, cost, accessibility, and outreach of renewable electricity among these provider types remains unclear. For this reason, my research examines the renewable energy market in DFW by asking: (1) Who has access to renewable energy and how do they understand it? (2) How do electricity retailers distribute and make renewable energy available? and (3) If consumers can choose their provider, why do they select certain electricity plans over others? My findings suggest that while many consumers want or are open to using renewable energy, uncertainties surrounding how to find or choose a provider, price, and …

Elevated social anxiety is a well-documented risk factor for developing problematic alcohol use behaviors. Adolescents with high social anxiety often report drinking for coping-related reasons, and drinking to cope has been linked to both acute and chronic alcohol use problems. Research further suggests that parenting is a primary socialization domain in terms of adolescent alcohol use onset and trajectory; however, no work has yet examined the role of parenting factors in the relation between social anxiety and coping motives for drinking. The current study investigated the role of two parenting dimensions, rejection/warmth and psychological control, on the link between social anxiety and problematic drinking motives. Drawing from an ongoing assessment of an inpatient program, the sample consisted of 94 girls and boys (ages 11-17 years). Regression analyses evaluated main effects of social anxiety, rejection, psychological control, the interactive effects of the parenting dimensions, and the three-way interaction of both parenting dimensions with social anxiety on coping motives for alcohol use. As expected, social anxiety was positively and statistically significantly related to coping motives when examined via raw scores, proportional values, and in the final model. Further, zero-order correlations indicated a positive, statistically significant relation between proportional coping motives and both …

This dissertation includes background on influences of mathematics, mathematics education, and who is viewed as a mathematician leading into three articles exploring students' and teachers' perceptions of mathematics through their lived experiences in both mathematics classrooms and their communities. Using interpretative phenomenological analysis for the methodology, all three articles analyze mathematics autobiographies and semi-structured interviews with five student participants enrolled in the same Algebra I course; Paper 3 also includes the Algebra I teacher. Paper 1 focuses on how students describe their lived experiences in mathematics classrooms. Three themes emerged from the participant data: 1) lack of autonomy and access, 2) feelings hinge on performance in mathematics, and 3) the need for support in mathematics. Each participant shared different experiences, but these experiences can help inform educators how to improve students' experiences in the classroom. Paper 2 sought to understand how middle grade students make sense of what it means to do mathematics in their community. The three themes include: 1) navigating the usefulness of mathematics outside of school, 2) who directs mathematics outside of school, and 3) the need for mathematics in future plans. Connections students made between mathematics and the lives outside of school varied suggesting how broad …

This dissertation extends our understanding of how rivalries are formed, what their antecedents are, and how and why they influence consumer choices. Furthermore, the psychological processes underlying the rivalry effects and the moderating effects of temporal focus are uncovered.

My thesis focuses on the conservation consequences of the hybridization of Lesser Prairie-Chickens in Kansas. Specifically, examining how past land management practices altering the species ranges impact the distinctiveness of Lesser Prairie-Chickens. Each chapter is an individual publication that addresses if the Greater and Lesser Prairie-Chicken are distinct when applying the morphological and biological species concepts. Chapter 2 compares the evolutionary history and morphological construct of Lesser Prairie-Chickens and other Galliformes using morphometric analysis. Chapter 3 uses low-resolution microsatellite data to reflect recent changes at the population level. This study aims to observe the Greater and Lesser Prairie-Chicken using the morphological and biological species concepts, two of the many species concepts, to determine the distinctiveness and rate of hybridization for these closely related species.

Secondary students with specific learning disabilities often have challenges with academic engagement and performance within the general education setting. Opportunity to respond strategies, such as student response systems, have shown promise in supporting academic engagement for students without disabilities. However, there are few studies examining the relationship between student response systems and academic engagement for older students with specific learning disabilities. The purpose of this study was to pilot the use of Google classroom as a student response system on academic participation and disruptive behavior for high school students with specific learning disability. While the study began as a multiple baseline across participants single-subject research design, the design was changed due to school closures as a result of COVID-19. A high-school student with specific learning disability participated in a study using an AB non-experimental design. The student response system resulted in an abrupt change in academic participation for the participant. The student and teacher perceived the intervention to be effective and appropriate for increasing participation and decreasing disruptive behavior. This study contributes to a limited body of research on student response systems for secondary students with specific learning disabilities.

Using an exploratory case study approach, this study examined the school leadership factors that contribute to building Latinx student social capital as well as the best practices for creating a more equitable AP program. Through this qualitative study, the organizational and leadership factors of the AP program at Stripes High School (pseudonym) were examined, and how these factors contributed toward closing the opportunity gap. This study used semi-structured interviews with district and campus leaders and an AP teachers focus group to determine leadership beliefs and actions that were successful in building an accessible and equitable advanced academics program for Latinx students, as well as an AP student focus group to triangulate the findings. The results of this study showed Latinx students, already lacking social capital, also face many barriers of different forms: systemic, structural and cultural in their educational opportunities for AP courses and exams. The case study campus overcame these barriers and increased equity by allowing Latinx students more access to AP courses and exams through district- and campus-level administrators working to remove barriers and hire and support the most capable and socially aware AP teachers who aim to grow and nurture the students who they serve. Based on …

Using queer and Afrofuturist frameworks, this Black feminist qualitative study explored queer Black pre-and in-service teachers' cultural and intersectional practices as they navigated traditional heteronormative educational spaces. This research study relied on counternarratives and storytelling and drew from Afrofuturism to understand the use of their lived experiences to counter monolithic queer narratives. The queer Black teachers in this study examined and negotiated how their Blackness and queerness showed up in teacher preparation programs (TPP) and K-12 classrooms. Moreover, they eventually refused to hide or censure their authentic selves. An analysis of the narratives and counternarratives showed that queer Black teachers drew from ancestral traditions to create queer Afrofuturist spaces in TPPs and educational places. Furthermore, due to their queer Black intersectional approaches, their classrooms, assignments, curriculum, and pedagogy disrupted normative teaching practices. Implications, recommendations, and future research are discussed.

Using a strong invariance structural equation modeling approach, the current study explored the role of parental styles, along with age and IQ, on the expression of psychopathic personality facets in a large (N = 734) male sample of Hispanic and non-Hispanic offenders. Multiple group confirmatory factor analyses revealed evidence of strong invariance across ethnic groups for the psychopathy and parenting scales (CFI = .95; RMSEA .03). Person-centered analyses examining psychopathic versus non-psychopathic cases demonstrated that the former reported greater levels of dysfunctional parenting, particularly abuse. Structural equation modeling results highlighted differential relationships between the variables of interest as a function of race/ethnicity.

Graduate education can be psychologically taxing, and the academic tasks that graduate students are required to perform can cause a great level of stress, insecurity, and uncertainty. The unique experiences that female students of color face at the intersections of gender, race, and class may have negative effects on their academic performance and attainment. This research explored the experiences of discrimination among the female African American/Black and Hispanic/Latina graduate students and their coping strategies to survive in the program of study at the University of North Texas (UNT), as a minority serving institution (MSI). A narrative research method was applied and 13 in-depth interviews were conducted using a semi-structured interview protocol. The findings showed the participants experienced various types of intragroup and intergroup discrimination based on the intersections of their multiple identities, especially race, gender, and socioeconomic status. The findings of this study revealed structural discrimination that participants experienced through their education; starting with their low income neighborhood where they were raised and the discrimination at the university. They perceived that minorities are not represented in the management and faculty positions, and there is an inadequacy of support resources and lack of racially sensitive advising services for female graduate students …

In this dissertation, I explored the effects of developmental hypoxia on heart contractility in three separate species of ectotherms: the common snapping turtle (Chelydra serpentina), the American alligator (Alligator mississippiensis), and the zebrafish (Danio rerio). I began with the common snapping turtle and tested whether the utilization of the sarcoplasmic reticulum was altered in response to developmental hypoxia. In the next two chapters, developmental hypoxia of the American alligator was explored studying how the cardiac tissue was affected, specifically in physiological stressors, sarcoplasmic reticulum utilization and sensitivity to pharmacological increases in contractility. The last chapter explored how zebrafish heart contractility was altered in response to chronic hypoxia from egg to adult. Findings from these chapters suggest that while developmental hypoxia did alter cardiac contractility, it did not alter the response of the heart to physiological stressors such as increased heart rate or under hypoxia. Overall, these findings contribute to increasing the current understanding of how developmental hypoxia alters the cardiovascular system but with an emphasis on the cardiac tissue level.

The primary focus of this research is explicating the role of emotion in IT post-adoption behavior. Studied in the context of intelligent personal assistants (IPA), a class of conversational artificial intelligence (AI), the first study integrates elements from computer science, communications, and IS disciplines. The research identifies two constructs vital for speech-based technologies, natural language understanding, and feedback, and examines their role in use decisions. This work provides guidance to practice on how best to allocate R&D investments in conversational AI. The second essay examines the IT continuance through the theoretical lens of the expectation-confirmation model (ECM), incorportating cognitive and emotional satisfaction into the ECM framework. Empirical testing of the model suggests that it offers additional clarity on IT continuance phenomena and provides a significant improvement to the explanatory power of ECM in the context of an emerging technology. The third essay is one of the earliest efforts to conceptualize and test a theoretical model that considers emotional attachment in IT continuance behavior. This essay develops a novel model to investigate this phenomenon based on emotional attachment theory, and empirically validates the proposed model in the context of conversational artificial intelligence systems. While the existing theories of IT continuance focus …

Drawing attention to an under-examined process during organizational socialization, we develop theory to explain how newcomers' new organizational roles and social identities become embedded. The process of identities becoming embedded is influenced by how an individual's preexisting identities interact with new organizational identities during socialization. Perceived harmony relationships among identities indicate if newcomers experience identities interacting in a positive or negative manner generally. Using a network perspective, we suggest that the identity embeddedness of new roles and identities are indicated by: degree centrality in an intrapersonal identity harmony network, perceived harmony with the network itself, and the perceived cost of lacking harmony with a focal identity. Newcomers are likely to be more satisfied and engaged with identities with greater embeddedness as well as find such identities more salient. Organizations can work to embed their employees' new identities through initiating identity work directed towards increasing harmony perceptions among the newcomers' new organizational identities and preexisting identities. Through helping individuals create harmony relationships among identities, organizations can improve socialization outcomes.

Many religious/spiritual (R/S) individuals receive meaning from R/S and utilize R/S to help them cope with stressful life events. However, natural disasters can disrupt the R/S meaning-making process (e.g., positive R/S coping strategies) because natural disasters can elicit cognitive dissonance between one's core R/S beliefs and personal disaster experience. R/S individuals suffering from a disaster experience could benefit from interventions that allow them to process their R/S experiences. The purpose of this dissertation is to fill a gap in the literature by exploring the effectiveness of a spiritually-oriented expressive writing intervention on positive psychological outcomes (e.g., meaning in life, satisfaction with life) in 132 R/S individuals that have experienced a natural disaster (i.e., survivors of the 2016 Baton Rouge, Louisiana flood). Quantitative results indicated the spiritually-oriented intervention was effective in promoting increased meaning in life but not life satisfaction. Survivors with lower pre-intervention positive attitudes toward God evidenced the strongest positive impact on their meaning in life. Qualitative analyses, using the constant comparative method from Corbin and Strauss's grounded theory approach, revealed six themes in the experimental group's written responses: (a) R/S growth, (b) R/S struggle, (c) R/S cognitive dissonance, (d) R/S reappraisals, (e) R/S proximity-seeking, and (f) spiritual support …

There remains a dearth of literature that explains with no ambiguity, the complex relationships that exist between adverse childhood experiences (ACEs) and resilience, as well as school engagement and school in individuals with a co-occurring diagnosis of autism spectrum disorder (ASD) and attention deficit hyperactive disorder (ADHD). This study seeks to fill this missing gap in the literature. These research questions were answered using a retrospective cross-sectional study design of national secondary data from the National Survey of Children's Health (NSCH). The findings revealed that the more ACEs an individual had, the less they were likely to engage and succeed in school. A similar finding was obtained for resilience as individuals with more ACEs showed less resilience. However, counterintuitively to the hypothesis of the project, having both ASD and ADHD does not necessarily make these outcomes worse compared to having a singular diagnosis of either ASD or ADHD. The significance of this study is that it informs rehabilitation counselors as well as educators on the need for early identification of individuals with ASD and ADHD with a background of ACEs and commence interventions early enough to ensure they are more resilient and obtain improved success in school-related activities as well …