Psychology Commons^™

Utilizing Nonparametric Statistical Methods To Inform Equitable And Inclusive Mtss Models Of School Attendance/Problems, Victoria Bacon

UNLV Theses, Dissertations, Professional Papers, and Capstones

School attendance/problems are a key focus of educational policy. Critical approaches to educational policy stress the importance of nontraditional methods that are inclusive of the needs of students from marginalized or minoritized groups. Students in these groups are already at an increased risk for school attendance problems due to complex systems interactions, and bolstering protective factors at the school level may be one way to promote inclusivity and equity. MTSS models are well suited to address attendance, and bolstering protective factors on a large-scale would fall under Tier 1 preventative efforts. School climate is one such protective factor that could …

An In-Depth Examination Of The Literature On Early Pubertal Timing And Disordered Eating In Women And Girls: A Systematic Review And Meta-Analysis, Megan Marie Shope

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: Extant data indicate that earlier onset of puberty increases risk for disordered eating symptoms in girls and women. However, whether earlier pubertal timing is predictive of all disordered eating symptoms, or whether it exerts differential effects across distinct symptoms (e.g., body dissatisfaction versus binge eating), remains unclear given inconsistencies in the literature and the lack of a systematic analysis. A meta-analytic approach can overcome these limitations by providing pooled estimates of early pubertal timing on disordered eating symptoms and testing for methodological moderators (i.e., disordered eating outcome/symptom type, measurement of pubertal timing, age of sample, type of sample, study …

Awareness And Knowledge On Aging And Hiv-Associated Neurocognitive Disorder: Service User And Provider Perspectives In Southern Nevada, Brandon C. Ranuschio

UNLV Theses, Dissertations, Professional Papers, and Capstones

HIV-Associated Neurocognitive Disorder (HAND) is a condition that can affect up to 50% of people living with HIV/AIDS (PLWH) and present as a cluster of neurocognitive difficulties in domains such as attention, memory, concentration, language, information processing, decision-making, problem-solving, and even motor skills. The current study intended to identify awareness and knowledge of HAND among middle-aged and older PLWH and their healthcare or service providers in Southern Nevada. Using a Community-Based Participatory Research approach, participants from the community were recruited to complete a survey that assessed awareness and knowledge of HAND. The survey also assessed the personal experiences of PLWH …

Stability Of Neurocognitive Abilities In Heterogeneous Subgroups Of Schizophrenia, Megan L. Becker Wright

UNLV Theses, Dissertations, Professional Papers, and Capstones

Considerable work has been devoted to characterizing the latent structure of cognition in schizophrenia (SZ) to understand important clinical outcomes associated with generalized or specific deficits but findings are limited in a number of ways. Previous work has not assessed bifactor and other complex models of cognition in SZ, which might provide a better understanding of the structure of cognitive abilities. It is also unclear whether the latent structure of cognitive abilities is similar between men and women with SZ or whether the latent structure of cognitive abilities is stable over time with repeated assessment. These limitations must be addressed …

Evaluating The Scl-90-R For Use In Collegiate Athletes, Elena Gavrilova

UNLV Theses, Dissertations, Professional Papers, and Capstones

The present study examines psychometric properties of the Symptom Checklist 90 – Revised (SCL-90-R; Derogatis, 1994) in collegiate athletes. The SCL-90-R is one of the most widely utilized measures of broad psychiatric distress. Current literature, however, suggests its factor structure varies across populations (Ardakani et al., 2016; Bakhshaie et al., 2011; Olsen et al., 2004; Ronan et al., 2000; Sereda & Dembitskyi, 2016; Smits et al., 2014; Urbán et al., 2016). Although the SCL-90-R has been previously utilized in studies involving athletes, the psychometric properties of this scale have yet to be investigated in this population. This study examined the …

Cognitive Testing For Sport Concussion: The Immediate Post-Concussion Assessment And Cognitive Testing (Impact), Julia E. Maietta

UNLV Theses, Dissertations, Professional Papers, and Capstones

Sport concussion is among the most common injuries for an athlete to experience during sport participation. Because of the complex pathophysiological process that affects the brain during and after concussion, symptoms can be heterogeneous in presence and severity. Although most acute symptoms (e.g., headache, slowed processing speed, loss of consciousness, irritability, depression, anxiety) resolve within seven to 10 days for most athletes, there is evidence that higher initial symptom burden and other genetically based differences can lead to longer symptom duration and complicated recovery post-concussion. Because structural changes that commonly occur as a result of concussion (e.g., diffuse axonal injury) …

Understanding The Role Of Identity Salience In The Relationship Between Experience Of Ethnic/Racial Discrimination And Mental Health Symptomatology, Michelle Strong

UNLV Theses, Dissertations, Professional Papers, and Capstones

Ethnic identity salience is shown to be a protective factor in the negative impact of discrimination on mental well-being in BIPOC. However, the extent to which ethnic identity salience is a protective factor in specific BIPOC is unclear. The current study examined whether ethnic identity salience would be equally protective against the negative effects of discrimination on depression and anxiety symptoms in LatinX/Hispanic, Black/African American, and AAPI groups. It included N =168 ethno-racially diverse college students (e.g., AAPI n = 59, Hispanic/LatinX n = 72, and Black/African n = 37 American college students). Hierarchical regression analysis was used to determine …

Changes In Cognitive Networks As A Result Of Sport-Related Concussion, Grace J. Goodwin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Given the high prevalence of concussion in sports, assessment of cognition has become a standard part of athletics, and results are used to inform return to play decisions. Neurocognitive measures (e.g., ImPACT) generate cognitive composite scores from individual subtests, and these scores are compared at baseline and post-concussion. Declines in scores provide evidence for concussive injury, and athletes undergo repeated assessments until their scores and symptoms improve. Recent research suggests that changes in the associations between test scores may provide important information about cognitive recovery. A network framework may help identify post-concussive cognitive changes that may not be apparent when …

Psychometric Properties Of The Eating Disorder Examination Questionnaire: Factor Analysis And Measurement Invariance By The Intersection Of Race And Gender, Jessica H. Habashy

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Eating Disorder Examination Questionnaire (EDE-Q) was originally validated in non-Hispanic White women and over the past two decades has become widely used as an eating pathology screening measure in college students. However, the original factor structure has generally failed to replicate across most studies, particularly among culturally diverse samples. The current study examined the factor structure and measurement invariance of the EDE-Q in a large sample of gender and racially/ethnically diverse college students. Participants included a racially and ethnically diverse sample of men and women from two universities. I first conducted exploratory factory analysis (EFA) to examine the factor …

Attentional Focus And The Development Of Skilled Performance, Harjiv Singh

UNLV Theses, Dissertations, Professional Papers, and Capstones

A central question in the development of skilled movement is: how a performer should focus their attention while preparing for the execution of a motor skill? Considerable evidence has shown that directing attention towards an intended movement effect (i.e., external focus) results in performance benefits relative to focusing on body movements (i.e., internal focus). While most of the previous research has emphasized the effects of internal versus external foci, evidence also suggests that external foci located at greater distances from the body (distal foci) are more effective than external foci located in greater proximity to the body (proximal foci) and …

What Happens In Vegas: The Influence Of Las Vegas On High-Risk Attitudes And Behaviors, Marissa Tiemann

UNLV Theses, Dissertations, Professional Papers, and Capstones

The probability of victimization is affected by various factors, such as child abuse, a history of victimization, sexual assault, substance abuse, and risky behaviors. Previous research has attributed differences in victimization risk to differences in lifestyle. Overtly sexual cultures like Las Vegas, Nevada, could impact the adoption of risky behaviors (e.g., binge drinking, casual sex, and substance abuse) that could increase victimization risks. This study seeks to understand the impact of the city of Las Vegas on adopting high risk sexual attitudes and behaviors by examining the length of time an individual has spent in Las Vegas. This study used …

Family Functioning In Youth With Bipolar Disorder, Kayla Fobian

UNLV Theses, Dissertations, Professional Papers, and Capstones

Family functioning encompasses a family’s ability to maintain an environment that supports and benefits each member of the family. Among families of youth with a bipolar disorder (BD), family functioning is impaired compared to healthy controls. However, few studies have examined family functioning across psychopathology in youth. Additionally, few studies have examined which symptoms (depressive, manic, or externalizing) are most strongly associated with family functioning. Therefore, the purpose of this manuscript is to benchmark impairments in family functioning in youth with BD compared to youth with other psychiatric disorders and to examine the differential influence of depressive, manic, and comorbid …

The Occupational Therapy Approach To Pain Treatment: A Pain Curriculum, Rosalee Howell

UNLV Theses, Dissertations, Professional Papers, and Capstones

It is within the scope of the occupational therapy profession to treat patients experiencing pain. The holistic approach used to assess and treat patients to improve functional performance is vital in treating pain. The focus is to decrease the detrimental impact of pain on the patient’s mental health, enhancing their ability to function in social and vocational roles. However, education is not adequately addressed in occupational therapy programs and is vital in preparing clinicians to meet the patient’s needs effectively.

This Doctoral Capstone was developed to highlight the importance and the benefit of education in preparing clinicians to treat patients …

The Effects Of Executive Function Between Anxiety And Math Achievement In Adolescents, Mckenzie Hall

UNLV Theses, Dissertations, Professional Papers, and Capstones

Anxiety in Children can develop into pervasive disorders in adulthood if not treated. Research shows dysfunctional Executive Function (EF) and anxiety are both shown to have a negative impact on math achievement in children and adolescents (Trezise & Reeve, 2018; Kalaycioglu, 2015; Owens, Stevenson, Hadwin & Norgate, 2012). Chung, Weyandt, and Swentosky (2014) found biological and neuropsychological support for EF as a unitary and multifaceted processor for regulating our emotional states as well as our daily procedures. Anderson’s (2002) model of Executive Control System (ECS) allows the factors of EF to be examined using a developmental approach towards EF processes. …

First-Day Expositional Interviews, Iterative Training, And Participant Skill In Descriptive Experience Sampling, Cody Michio Kaneshiro

UNLV Theses, Dissertations, Professional Papers, and Capstones

Descriptive experience sampling (DES) is a method of describing inner experience (i.e., directly apprehended thoughts, feelings, sensations, etc.). DES includes “iterative” sequences of random, natural-environment, beeper-driven sampling of inner experiences followed by an expositional interview that seeks to apprehend and describe those inner experiences in high-fidelity. DES investigators claim that these iterative sequences increase the participant’s DES skills. The present study tests that claim by investigating whether participants demonstrate higher skills in their very-last-sample interviews than they exhibited in their own very-first-sample interviews. The very-last-sample and very-first-sample interviews of six participants were quantitatively and qualitatively examined. We found that participants …

Predicting And Mitigating Reactance Impact On Attitude And Behavioral Intention, Matthew Ryan

UNLV Theses, Dissertations, Professional Papers, and Capstones

At times messaging may be of an instructive nature that can be perceived as an attempt to threaten or limit an individual’s freedom. This freedom limitation can range from individual choice to physical requirements. How a message is framed, or positioned, is very important. In certain instances, even when the message has the best intentions, if framed incorrectly can have the opposite, or boomerang, effect on people. This state is known as psychological reactance. When invoked, consumers will act in a way that eliminates the threat of freedom to restore balance. Such a state can also lead to negative implications …

The Role Of Working Memory In Fraction Arithmetic: Eye Movements During A Dual Task, Krystal Kamekona-Mendoza

UNLV Theses, Dissertations, Professional Papers, and Capstones

Fractions are first introduced at the elementary school age, yet difficulty with fraction computation (i.e., adding, subtracting, multiplying, and dividing) continues to persist throughout adulthood. Research suggests that fraction knowledge is predictive of future math achievement and success in algebra. Given the early age at which this concept is introduced and the critical role that it plays in future mathematics success, it is important to better understand the cognitive mechanisms involved in fraction computation and why students continue to struggle with this concept. The role of executive function (e.g., attention, inhibition, working memory) in fraction arithmetic is complex. While working …

Multiple Approaches To Auditory Rhythm: Development Of Sustained Musical Beat And The Relation To Language, Development Of Rhythmic Categories Via Iterated Production, And A Meta-Analytic Study Of Neural Entrainment To Beat, Karli Marie Nave

UNLV Theses, Dissertations, Professional Papers, and Capstones

Rhythm is ubiquitous to human communication, coordination, and experience of music. In this dissertation, I address three empirical questions through three different methodologies, all of which contribute to the growing body of literature on human auditory rhythm processing. In Chapter 2, I present a registered report detailing the results of independent conceptual replications of Nozaradan, Peretz, Missal, & Mouraux (2011), all using the same vetted protocol. Listeners performed the same tasks as in Nozaradan et al. (2011), with the addition of behavioral measures of perception. In neuroscience, neural correlates to musical beat perception have been identified, yet little to no …

Identifying Risk Factors For Ptsd Symptom Clusters In Maltreated, Multiracial Youth Using Nonparametric Modeling, Mallory Constantine

UNLV Theses, Dissertations, Professional Papers, and Capstones

Multiracial youth are one of the most at-risk racial groups for child maltreatment. Multiracial individuals are also more likely to report mental health concerns than other racial or ethnic groups. This study aimed to identify demographic and psychological risk factors that are unique to multiracial, maltreated youth with respect to PTSD symptoms (i.e., re-experiencing, hyperarousal, avoidance) through classification and regression tree (CART) analyses. Participants included 99 multiracial, maltreated youth directly following their placement in an emergency group shelter due to substantiated maltreatment. The first hypothesis was that female gender, English first language, questions related to guilt and self-blame, and depressive …

The Experience Of Self-Coherence: Self-Coherence As The Hub Of All Needs, April Ursula Fox

UNLV Theses, Dissertations, Professional Papers, and Capstones

Self-coherence as the hub of all needs is a novel proposition made by Carol Dweck (2017), and not yet further explored. While supporting self-coherence with a comprehensive review of its presence within behavioral sciences, Dweck does not dive deeper into it, and offers an invitation for further research of its workings. In this study I respond to that invitation. I design a continuation to her theory. I also expand her theory to include what I have found to be missing, but essential, additional components that cannot be ignored within the context of self-coherence as a master sensor of needs. Finally, …

How Can We Reduce Racism? A Mixed Method Study Of Factors That Influence Attitudes Towards Social Change, Kindy Insouvanh

UNLV Theses, Dissertations, Professional Papers, and Capstones

The resurgence of social movements such as Black Lives Matter has provoked public discourse about racial inequality and efforts towards social change. The current study sought to better understand how young adults reason about racism reduction with a focus on racial allyship and collective action. The present study used mixed methods to identify strategies young adults believe different racial groups could do to reduce racism and investigate the influence that individual factors have on reasoning about social change. Here, I present emergent themes to describe racism reduction strategies from a large and racially diverse sample of undergraduate students (N= 428). …

The Optimum Performance Program In Sports - Youth: A Case Study, Karolyne Bastos Stucki

UNLV Theses, Dissertations, Professional Papers, and Capstones

Ethnically and racially diverse youth athletes underutilize mental health services, resulting in social and economic costs to society (Gudiño et al., 2008; Snowden & Yamada, 2005). Almost half of all children and adolescents participate in sport, and sport participation is especially common in youth from ethnically and racially diverse neighborhoods (Holt, 2008; NSCH, 2017). Therefore, sport may be an effective strategy to permit diverse youth to receive mental health services. The current case study examines The Optimum Performance Program in Sports (TOPPS; a sport-specific family behavior therapy) in an Asian American youth athlete evidencing Social Anxiety Disorder (DSM-5). A within …

Racial/Ethnic Disparities In Mental Health Diagnosis Of Maltreated Youth, Shadie Burke

UNLV Theses, Dissertations, Professional Papers, and Capstones

Racial/ethnic marginalized youth are more likely to receive a misdiagnosis of a mental health disorder than their White peers. Misdiagnosis contributes to existing disparities for racial/ethnic marginalized groups by leading to longer durations of untreated and worsening mental health symptoms. For maltreated youth, receiving a misdiagnosis can lead to a failure to connect with appropriate mental health services, medication regimens, therapeutic foster homes, and academic and developmental resources. To date, very few empirical studies have identified disparities in mental health diagnosis among racial/ethnic marginalized maltreated youth. The present study examined two key research questions: (1) what racial/ethnic disparities in diagnoses …

Feasibility And Efficacy Of Virtual Darkness In Reducing Intra-Individual Sleep Variability Among Young Adults With Insomnia, Samantha Nicole Sherwood

UNLV Theses, Dissertations, Professional Papers, and Capstones

BackgroundInsomnia impacts 30% of people and is associated with increased risk for medical and psychiatric illness. However, pharmacological treatments for sleep yield mixed results and often result in undesirable side effects indicating a need for novel insomnia interventions. Sleep patterns also demonstrate high intra-individual variability which may be associated with greater daytime impairment, and sleep-wake cycles are strongly affected by the timing of exposure to blue-green wavelength light. Virtual darkness, a novel intervention, blocks blue wavelength light from reaching the eye to simulate actual darkness on retinal cells sensitive to light. Therefore, the purpose of the current study is to …

It’S Not You, It’S Me: Measuring Erotic Self–Focus, Evan Fertel

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research suggests the presence of a non-relational aspect of women’s sexuality wherein a focus on oneself may be linked to elevations in sexual desire/arousal. Some theorists have even asserted that women may be, in some ways, their own sexual objects. Building on a previous exploration of what is now termed Erotic Self-Focus (ESF; Fertel, 2015), the present study developed a refined measure of ESF to further assess the validity and nature of this new construct. An exploratory factor analysis revealed four factors: Arousal to Own Body, Self/Own-Gender Focus vs. Partner/Other-Gender Focus, Self-Focused Arousal – Physical, Self-Focused Arousal – Mental. Although …

Presumed Illegal Microaggressive Experience (Prime): A Microaggression Targeting Latinx Individuals, Aldo M. Barrita

UNLV Theses, Dissertations, Professional Papers, and Capstones

In the US, people of color (PoC) are consistently the targets of microaggressions, a form of everyday racism (Pierce et al., 1977; Chavez, 2013) manifested in brief, commonplace, daily slights and indignities (Sue et al., 2007). After the 2016 elections, Americans immediately reported an increase in social tensions across racial groups (Pew Research, 2017). Latinxs, in particular, reported a steep rise in experiences with racial and ethnic discrimination (Gomez & Perez Huber, 2019; Jones et al., 2019), particularly around the context of immigration status (Santos et al., 2021). No previous research, however, has explored the experience of assumed illegality based …

Defining Problematic School Absenteeism: Identifying Youth At Risk, Mirae J. Fornander

UNLV Theses, Dissertations, Professional Papers, and Capstones

Study 1: School attendance is an important foundational competency for children and adolescents, and school absenteeism has been linked to myriad short- and long-term negative consequences, even into adulthood. Many efforts have been made to conceptualize and address this population across various categories and dimensions of functioning and across multiple disciplines, resulting in both a rich literature base and a splintered view regarding this population. This article (Part 1 of 2) reviews and critiques key categorical and dimensional approaches to conceptualizing school attendance and school absenteeism, with an eye toward reconciling these approaches (Part 2 of 2) to develop a …

Is Pristine Inner Experience Linked To Biology? An Examination Of Experience Across The Menstrual Cycle Among Women With Premenstrual Distress, Alek E. Krumm

UNLV Theses, Dissertations, Professional Papers, and Capstones

The link between mind and biology is intuitively known: We notice changes in our mood and behavior when hungry, in pain, or under the influence of substances. Yet, the specifics of this link—for example, how changes in biology affect directly apprehended conscious experience— are not well known. The present study was an exploratory attempt toward filling that gap by using a state-of-the-art, beeper-driven method for exploring directly apprehended conscious experience (Descriptive Experience Sampling; DES) across one of the most predictable and wellknown biological cycles: menstruation. We screened approximately 300 college women to identify those who reported clinically significant symptoms of …

Measures And Conceptualizations Of Symptoms In Schizophrenia, Nina B. Paul

UNLV Theses, Dissertations, Professional Papers, and Capstones

Schizophrenia presents as a heterogenous disorder characterized by diverse expression of symptoms between individuals. Thus, clinicians and researchers rely on comprehensive symptom measures for diagnosis and treatment. This dissertation investigated two symptom measures, the Positive and Negative Syndrome Scale (PANSS; Kay, Fiszbein, & Opler, 1987), a commonly used scale that assesses a broad range of symptoms of schizophrenia, as well as the Brief Negative Symptom Scale (BNSS; Kirkpatrick et al., 2011; Strauss et al., 2012), a novel scale that focuses on the assessment of five negative symptom domains (i.e., anhedonia, asociality, avolition, blunted affect, and alogia). The first study of …

Attention Bias In Irritability: A Social Information Processing Perspective, Breanna Garcia

UNLV Theses, Dissertations, Professional Papers, and Capstones

Social information processing (SIP) theory suggests a framework for understanding how individuals make sense of their world—from the cognitive tasks of perception and problem solving to the emotional tasks of integrating this information with one’s goals, motivational state, and arousal regulation. This framework has been integral for better understanding the etiology behind certain psychopathologies (such as depression or disruptive behavior disorders) as it is thought that bias early in attentional processes may have trickle down effects on later processing and decision making (Dodge, 1993). It is known that the attention biases early in the SIP model (e.g., encoding biases) differ …