Degree Discipline

Assessment of Feigned Neurocognitive Impairment in Retired Athletes in a Monetarily Incentivized Forensic Setting

Compromised validity of test data due to exaggeration or fabrication of cognitive deficits inhibits the capacity to establish appropriate conclusions and recommendations in neuropsychological examinations. Detection of feigned neurocognitive impairment presents a formidable challenge, particularly for evaluations involving possibilities of significant secondary gain. Among specific populations examined in this domain, litigating mild traumatic brain injury (mTBI) samples are among the most researched. One subpopulation with potential to contribute significantly to this body of literature is that of retired athletes undergoing fixed-battery neuropsychological evaluations within an assessment program. Given the considerable prevalence of concussions sustained by athletes in this sport and the substantial monetary incentives within this program, a unique opportunity exists to establish rates of feigning within this population to be compared to similar forensic mTBI samples. Further, a fixed battery with multiple validity tests (VT) offers a chance to evaluate the classification accuracy of an aggregated VT failure paradigm, as uncertainty abounds regarding the optimal approach to the recommended use of multiple VTs for effort assessment. The current study seeks to examine rates of feigned neurocognitive impairment in this population, demonstrate prediction accuracy equivalence between models based on aggregated VT failures and logistic regression, and compare classification performance of …
Date: August 2020
Creator: Smotherman, Jesse M.
System: The UNT Digital Library
Examining the Clinical Utility and Predictive Validity of Dimensional Models of Psychopathology (open access)

Examining the Clinical Utility and Predictive Validity of Dimensional Models of Psychopathology

The Diagnostic and Statistical Manual of Mental Disorders arranges co-occurring clusters of symptoms into distinct disorder categories, which theoretically have specific etiologies, pathologies, and treatments. However, researchers and clinicians alike have consistently found DSM diagnoses to have high rates of comorbidity, low diagnostic specificity, and no disorder has proven to be a discrete category. There is mounting evidence that dimensional taxonomies more accurately capture the underlying structure of mental illness and clinical presentations. The recently proposed hierarchical taxonomy of psychopathology presumes to address the issues of categorical nosologies using a data driven approach to create a dimensional model of psychopathology. However, heretofore there are no empirical examinations of HiTOP's ability to predict psychotherapy treatment outcomes. This study compared the predictive validity DSM, RDoC, and HiTOP criteria using natural language processing on free text narrative notes. Of the three GMM run, only the model using DSM criteria as predictors had adequate model fit. Additionally, none of the nosologies significantly predicted treatment course. Implications for the application of RDoC and HiTOP are discussed.
Date: August 2021
Creator: Love, Patrick K.
System: The UNT Digital Library

Queer Resilience: A Mixed Methods Examination of LGBTQ+ Positive Identity, Community Connectedness, and Mental Health Outcomes in Sexual Minority Emerging Adults

Despite significant progress in the acceptance and celebration of LGBTQ+ individuals, there is overwhelming evidence that sexual minorities still face disproportionate levels of health inequity compared to their heterosexual peers. Relative to their heterosexual peers, LGBTQ+ emerging adults may encounter unique challenges with discrimination, stigma, and limited social support as they navigate changes in their educational and occupational environments. Additionally, within the broader public health and LGBTQ+ mental health literature, little is known about the mental health service utilization of sexual minority emerging adults. To address these empirical gaps, a sample of 98 LGBTQ+ emerging adults completed self-report measures of heterosexist discrimination experiences, mental health symptoms, LGBTQ+ positive identity, LGBTQ+ community connectedness, and mental health service utilization. The present study found that LGBTQ+ positive identity and LGBTQ+ community connectedness did not attenuate the significant positive relationship between discrimination and negative mental health outcomes. The present study also found that LGBTQ+ positive identity predicted greater likelihood of mental health service utilization, whereas LGBTQ+ community connectedness did not. Finally, exploratory qualitative analyses yielded deeper understanding of relationships between LGBTQ+ positive identity, LGBTQ+ community connectedness, mental health service utilization, and resilience among sexual minority emerging adults. Implications and future directions for empirical research …
Date: August 2022
Creator: Fondren, Alana Harrison
System: The UNT Digital Library

Intergenerational Differences in Barriers that Impede Mental Health Service Use among Latinos

Research has extensively documented the mental health disparities that exist for ethnic and racial minorities living in the United States. With respect to Latinos, such disparities are marked by less access to care and poorer quality of mental health treatment. Studies on Latino mental health have found differences in mental health service utilization among ethnic subgroups and among different generations of Latinos. However, empirical data examining specific attitudes and barriers to mental health treatment among different generations of Latinos are limited. This study explored the relationships between Latino generational status, mental health service utilization, psychological distress, and barriers to mental health treatment. An online survey (N = 218) included samples of first-generation (n = 67), second-generation (n = 86), and third-generation or beyond Latinos (n = 65). Results indicated first-generation Latinos had the lowest rate of mental health service utilization and reported greater linguistic and structural knowledge barriers, however, they had lower perceived social stigma of mental health services when age at migration was considered. Implications of these findings for research, mental health service providers and mental health policy are discussed.
Date: July 2023
Creator: Escobar-Galvez, Irene
System: The UNT Digital Library

Effects of Enculturation in Neuropsychological Test Performance on the African Neuropsychological Battery in African Americans and First-Generation Sub-Saharan African Immigrants to the United States

This study used an archival data set of 26 healthy adult immigrants from a sub-Saharan African country to the United States (Mage 39.0, SD = 11.36; Meducation 16.33, SD = 2.88; 40.7% male). Additional archival data was used for 32 healthy African American adults (Mage 34.06, SD = 11.18; Meducation 16.16, SD = 2.49; 53.1% male). A bivariate correlation indicated that acculturation to African culture, as measured by the mBIQ (M 49.29, SD = 8.66), was significantly positively correlated with ethnicity, r = .632, p = .000, ηp2 = 0.399. Two-way ANOVAs revealed that African Americans were able to name more animals than African immigrants (F(1, 54) = 4.82, p = 0.32, ηp2 = 0.82) and exhibited greater organizational skills during a task of cognitive set shifting and problem solving than African immigrants, regardless of level of acculturation (F(1, 54) = 4.47, p =.039, ηp2 = 0.078). In contrast, African immigrants scored higher than African Americans on indigenous fruit (F(1, 54) = 7.60, p =.008, ηp2 = 0.123) and object naming (F(1, 54) = 5.59, p =.022, ηp2 = 0.094). Results of the study concluded that there are small variance effects in language tasks as well as strategy-based approaches to …
Date: August 2022
Creator: Braggs, Princess S
System: The UNT Digital Library
Prediction is Not Enough: Towards the Development of a Multi-Faceted, Theoretical Model of Aggression and Violence (open access)

Prediction is Not Enough: Towards the Development of a Multi-Faceted, Theoretical Model of Aggression and Violence

Violence and aggression continue to be both public health and economic concerns. The field of violence prediction has undergone a series of changes in an attempt to best assess risk including using unstructured clinical judgment, actuarial measures, and structured professional judgment. Although prediction has become more accurate with improved measures, a new generation has recently emerged with an emphasis on understanding violence, as opposed to merely predicting it, to shift the focus towards violence prevention. In addition to the creation of measures, researchers have sought to identify specific risk factors for aggression and violence including static and dynamic risk factors. Despite research demonstrating associations between neuropsychological and social-cognitive factors, violence risk measures continue to omit these variables. The current study developed a multi-faceted, theoretical model of aggression including social-cognitive, neuropsychological, personality, and psychiatric factors. A community, male sample (N = 1,192) collected through Amazon's MTurk responded to a series of self-report measures and neuropsychological tasks. Utilizing structural equation modeling (SEM), I created a model predicting aggression. Several important paths were significant including from entity theory to aggression, mediated by hostile attribution bias, schizotypy to aggression, mediated by both hostile attribution bias and disinhibition, substance use to aggression mediated by disinhibition, …
Date: August 2022
Creator: Cohn, Jonathan Reed
System: The UNT Digital Library
Executive Functioning Processes in Simple and Complex Theory of Mind Tasks (open access)

Executive Functioning Processes in Simple and Complex Theory of Mind Tasks

Using a multimethod-multimodal approach, this study compared the contributions of executive function (EF) abilities (Go No-Go, Visual Search, 2-Back task, and Task Switching) to narrative comprehension tasks (False Belief, Strange Stories, Self-Reported Theory of Mind Inventory [TOMI-SR]) and a narrative production task (interpersonal decentering) in a sample of young adults. Separate regression models were conducted for each theory of mind (ToM) measure with EF measures as predictor variables and empirically selected demographic variables controlled. As expected, in this college student sample (N = 110), False Belief demonstrated a ceiling effect and was not associated with any EF ability. Task Switching and 2-Back accounted for significant variance in Strange Stories. No EF task significantly predicted performance on TOMI-SR or interpersonal decentering. Both story comprehension tasks (False Belief and Strange Stories) were significantly associated, but these tasks were not correlated with either self-reported ToM or interpersonal decentering. Several unanticipated demographic associations were found; having more siblings and English proficiency accounted for significant variability in Strange Stories; education, presence or absence of self-disclosed autism diagnosis and mental health diagnosis explained a large portion of variance in TOMI-SR; interpersonal decentering maturity differed significantly between cisgender men and cisgender women. Lastly, interpersonal decentering number of …
Date: August 2022
Creator: Shamji, Jabeen Fatima
System: The UNT Digital Library
The Impact of a Peer Mentor Intervention on Internalized Stigma, Mindfulness, and Adherence to Antiretroviral Medication among Adolescents Living with HIV in Zambia (open access)

The Impact of a Peer Mentor Intervention on Internalized Stigma, Mindfulness, and Adherence to Antiretroviral Medication among Adolescents Living with HIV in Zambia

Based on a step-wedge randomized control trial (intervention n = 136; comparison n = 137), this study investigated the impact of a peer mentor intervention for youth living with HIV aged 15-24 years in Ndola, Zambia. Using piecewise hierarchical linear modeling (HLM), change in internalized stigma predicted change in mindfulness, and mindfulness was a significant predictor of better self-reported adherence to antiretroviral therapy (ART) across both intervention groups. Intervention group membership did not predict rate of change in mindfulness, but predicted a reduction in internalized stigma and an increase in self-reported ART adherence. Following the peer mentor intervention, internalized stigma was significantly lower in the intervention group than the comparison group. Findings highlight the need to develop and implement interventions specific to adolescents living with HIV with a biopsychosocial approach that attends to both the physical and psychological needs specific to adolescents. Our findings support the inclusion of mindfulness-based components in interventions targeting ART adherence for adolescents living with HIV.
Date: August 2021
Creator: Caldas, Stephanie
System: The UNT Digital Library
The PICTS, Trauma, Experiential Avoidance, Criminal Thinking and Behavior in an Online Community Sample (open access)

The PICTS, Trauma, Experiential Avoidance, Criminal Thinking and Behavior in an Online Community Sample

This study sought to generalize the Psychological Inventory of Criminal Thinking Styles (PICTS) factor structure using the PICTS-Layperson (PICTS:L) in a community sample. The current study also sought to replicate previous findings that criminal thinking mediates the relationship between trauma and criminal behavior. Additionally, this study sought to explore if and/or how experiential avoidance (EA) contributes to the relationships between post-traumatic symptoms (PTS) and criminal thinking, and criminal thinking and criminal behavior. Community members recruited through Mturk, completed online measures of PTS, EA, criminal thinking, criminal behavior, and a demographics questionnaire. A confirmatory factor analysis (CFA), which was conducted to assess the PICTS:L factor structure in an online community sample, demonstrated the hierarchical second order factor structure was a good fit after problem items were removed. Mediation analyses results found that criminal thinking mediated the relationship between PTS and criminal behavior therefore replicating previous findings. Moderated mediation analyses were conducted to determine if EA moderates the relationships between PTS and criminal thinking, and criminal thinking and behavior. Findings suggest that EA plays a significant role, particularly for women who endorse relatively low EA. These and exploratory findings, limitations, implications, and future directions for work in these areas are discussed.
Date: August 2020
Creator: Hulsey, Teresa
System: The UNT Digital Library

The Examination for the Professional Practice of Psychology (EPPP): An Examination of Criterion Validity

The Examination for Professional Practice in Psychology (EPPP) is a requirement for licensure as a psychologist across the entire United States as well as in numerous territories and provinces. Despite many longstanding criticisms and findings of bias, the EPPP is being expanded (adding a second, putatively competency-based, portion to the overall exam) and rebranded as the Enhanced EPPP. A review of literature reveals strong skepticism surrounding these developments, particularly with respect to the issue of criterion validity. The current study sought to examine the criterion validity of the EPPP by (1) drawing archival competency assessment data from existing measures (convergent validity) and (2) gathering new neurocognitive and emotional intelligence data, along with demographic data (discriminant validity), with copies of EPPP score reports from individuals who have recently taken the EPPP. Competency ratings did not significantly positively correlate with EPPP scores and, instead, indicated the opposite trend. Analyses also revealed a significant relationship between ethnicity and exam scores, with White individuals scoring higher than other ethnicities. Finally, performance on neurocognitive tests significantly positively correlated with exam scores, indicating that general test taking abilities play a larger role than abilities and competencies unique to the psychology field. Given the gatekeeping role the …
Date: July 2023
Creator: Saldana, Samantha
System: The UNT Digital Library

Association of Trainee Psychotherapist Competency and Client Outcomes

Client outcomes in psychology training clinics have been shown to be generally worse than other outpatient settings. Although this finding has been repeatedly demonstrated, no consensus of cause has emerged in the literature. One possible explanation of such findings may relate to psychotherapist effects, a historically neglected variable that has received increased attention in more recent literature. Among psychotherapist effects researched, competency has emerged as a compelling factor worthy of more research. Given that most growth in competence occurs during graduate training, investigating the relationship between competency and client outcome offers great potential benefit for informing optimal training, nature of client symptom improvement, and a more accurate depiction of differences in psychotherapist effects across training and non-training settings. The purpose of this study was to explore the trajectory of competence development during doctoral training in health services psychology and to investigate the association of trainee competency to the psychotherapy outcomes evidenced by their clients. Practicum evaluations of 36 trainees and outcome data (using the Outcome Questionnaire-45.2) from 244 adult clients were included in analyses. Results of the study suggest there is a positive relationship between cumulative semesters of training and competency scores (rs[118]= .34, p < .001). Notably, there was …
Date: August 2020
Creator: Dziurzynski, Kristan
System: The UNT Digital Library
"They Understand the Lyrics, but Not the Music": Differences in Prosodic Output across Psychopathic Subtypes (open access)

"They Understand the Lyrics, but Not the Music": Differences in Prosodic Output across Psychopathic Subtypes

This person-centered analytic approach identifies homogeneous offender subtypes in terms of psychopathic trait profiles and facilitates examination of correlates that may be linked with specific subtypes. Prosody is an external correlate that contains a wealth of information relevant to disruptions in cognition and affect and may offer novel insight into different psychopathic subtypes. The current study examined prosodic output in a male offender sample (n = 469) within the context of the clinical Psychopathy Checklist – Revised interview (PCL-R; Hare, 2003). Audio recorded speech samples were drawn from offender responses to affectively-charged PCL-R interview questions representing differing levels of valence and arousal. Generally consistent with previous literature, LPA results indicated that a four-class solution yielded the best model fit for the allocation of individual cases to subtypes with high overall classification accuracy (85%). Results of external validation analyses using mixed effects multivariate analysis of variance revealed significant two- and three-way interactions (psychopathy subtype x valence x arousal) for both speech production and variability indices that helped differentiate the subtypes. Overall, the current study suggests that meaningful differences exist in terms of prosodic output within psychopathic offender subtypes, which may be related to dysfunction in underlying affective processes. Implications of these …
Date: August 2021
Creator: Walsh, Hannah C
System: The UNT Digital Library

Examining the Role of Emotion Dysregulation and Rumination in the Relationship between PTSD Symptom Severity and Sleep Disturbances

Emotion dysregulation and rumination are involved in the development, maintenance, and treatment of both posttraumatic stress disorder (PTSD) and sleep disturbances. We examined if and how these factors influenced the nature of the relationship between PTSD symptom severity and subjective sleep disturbances among trauma-exposed individuals. Using data gathered from a community sample of 199 trauma-exposed individuals (Mean age = 35.48; 59.80% female), we examined whether there were stronger significant associations between greater PTSD symptom severity and poorer sleep quality/lower sleep quantity at higher (vs. lower) levels of (1) negative emotion dysregulation and positive emotion dysregulation (both included in the same model) and (2) rumination. Participants recruited via Amazon's Mechanical Turk completed the PTSD Checklist for DSM-5, Brief Version of the Difficulties in Emotion Regulation Scale, Difficulties in Emotion Regulation Scale – Positive, Ruminative Thought Style Questionnaire, and sleep quality/quantity items from the Pittsburgh Sleep Quality Index. Results of simple and additive multiple moderation analyses showed that neither negative/positive emotion dysregulation nor rumination moderated the relationships between PTSD symptom severity and sleep quality/quantity. Exploratory analyses showed that negative emotion dysregulation (when examined independently) moderated the relationship between PTSD symptom severity and sleep quality. There were also significant associations between poorer sleep …
Date: August 2022
Creator: Dolan, Megan A.
System: The UNT Digital Library
Cross Validation of the Juror Questionnaire of Values and Viewpoints: Sentencing Decisions and Impression Management in Eligible Capital Jurors (open access)

Cross Validation of the Juror Questionnaire of Values and Viewpoints: Sentencing Decisions and Impression Management in Eligible Capital Jurors

The current dissertation had three primary objectives, categorized into two MTurk studies with capital juror-eligible community members: (a) cross-validate the psychometric properties of the JQVV, (b): explore the role of legal attitudes via the JQVV in mock capital sentencing decisions, and (c): examine the JQVV's ability to detect juror social desirability in capital voir dire. Impressively, Study 1 (N = 552) and Study 2 (N = 313) provided strong and consistent evidence for the JQVV's reliability and construct validity. In the mock juror paradigm, punitive legal attitudes on the JQVV (i.e., Crime-Neg, Convict, and Death-Pos), did not directly affect sentencing decisions, however they indirectly influenced the perception of nearly all other legally relevant variables (e.g., evidence type). For example, participants with more punitive criminal justice attitudes evaluated aggravating evidence more favorably which, in turn, increased death sentence verdicts. Study 1 also underscored the concerningly low levels of comprehension jurors have regarding judicial instructions and other relevant legal knowledge (e.g., the definition of aggravating). In Study 2, the support-life and support-death groups evidenced divergent patterns of social desirability, although support-death participants did not dramatically alter their scores between the genuine and social desirability condition. Additionally, the JQVV Pros-Cyn and Justice-Pos scales …
Date: August 2022
Creator: Hartigan, Sara E
System: The UNT Digital Library