UNT Theses and Dissertations - 1,839 Matching Results

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How Much Does Sleep Vary from Night to Night? A Quantitative Summary of Intraindividual Variability in Sleep by Age, Gender, and Racial/Ethnic Identity

Description: Habitual (i.e., average or typical) sleep duration and sleep efficiency vary widely by demographic characteristics, including age, gender, and racial/ethnic identity. Despite a wealth of studies on demographic patterns in habitual sleep, these results are often based on cross-sectional surveys, which ask participants to retrospectively recall their "typical" or "recent" sleep. Yet, sleep is a highly dynamic behavior and may fluctuate substantially from night-to-night. This intraindividual varia… more
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Date: May 2022
Creator: Messman, Brett A
Item Type: Refine your search to only Thesis or Dissertation
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open access

Human Learned Helplessness: Uncontrollable Negative Feedback or Total Amount of Negative Feedback?

Description: To determine if learned helplessness results from lack of control over negative events or simply the number of negative events experienced, 60 university students were assigned to one of five treatments: controllable low negative, uncontrollable low negative, controllable high negative, uncontrollable high negative, and no treatment. Backward digit and letter span tasks served as test tasks. The generally nonsignificant results were discussed as possibly due to a procedural error. Further resea… more
Date: August 1980
Creator: Martin, Daniel Richard
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Humility and Attachment Style in Adult Romantic Relationships

Description: The goal of this study was to investigate the relationship between adult attachment style, humility, and relationship satisfaction in college student couples. Attachment style--given its significant role in predicting how individuals feel, think, and behave in relationships--was expected to be an important predictor of humility, although this possibility has rarely been studied empirically. The current study found that: (a) attachment anxiety and attachment avoidance were significant, negativ… more
Date: August 2018
Creator: Farrell, Jennifer Ellen
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Husband's and Daughter's Role Strain During Breast Cancer Hospice Patient Caregiving and Bereavement Adjustment

Description: Current literature regarding caregiver bereavement adjustment has advanced two competing models explaining adjustment in relation to caregiver interrole conflict: the Relief Model and Complicated Grief Model. This research has primarily focused on the experience of those providing care to dementia patients. This study tests these competing models of bereavement adjustment for husband and daughter caregivers of breast cancer hospice patients. For husbands, greater psychological strain and health… more
Date: May 2000
Creator: Bernard, Lori Lynn
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Hypothesis Testing Behaviors of Children with Attention-Deficit Hyperactivity Disorder

Description: The hypothesis testing behaviors of 50 boys with Attention-Deficit Hyperactivity Disorder (ADHD) were compared to those of 50 boys without ADHD. The two groups were randomly assigned to one of two feedback conditions: a) boys in the "instruction and rule" condition learned additional strategies to aid their performance on the Wisconsin Card Sorting Test (WCST); b) children in the "verbal only" condition learned no additional strategies. There were no significant group or condition differences b… more
Date: December 1992
Creator: Epperson, Sidney Reins
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Identification of Ego States and Early Parent-Child Relationships

Description: The purpose was to verify ego states as objectively identifiable phenomena and the influence of early parent-child relationships on their identification using an audio tape of recorded examples of ego states, Thompson's Ego State Tape (EST), and the Roe-Siegleman Parent-Child Relations Questionaire (PCR). No relationship was found between SAT scores and scores on the EST, nor between PCR and EST scores. It was concluded that possibly (1) no relationship existed between how children perceive the… more
Date: August 1974
Creator: Munday, Jim
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Identifying AD/HD subtypes using the cognitive assessment system and the NEPSY

Description: The purpose of this study was to examine the ability of the Cognitive Assessment System (CAS) and the NEPSY, A Developmental Neuropsychological Assessment, to differentiate between the subtypes of Attention Deficit/ Hyperactivity Disorder (AD/HD). The CAS and NEPSY are neuropsychological instruments which provide norms for AD/HD children in general. This study examined the performance of the two subtypes of AD/HD on the CAS and NEPSY. In addition, this study examined the performance of the tw… more
Date: August 2001
Creator: Pottinger, Lindy Sylvan
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Identifying the Level of Prognostic Information Desired by People with Cancer

Description: The study explored whether certain factors might be used to distinguish between people with cancer who do or do not want detailed information about their disease progress, do or do not want to be informed if their disease is no longer considered curable, and who do or do not want an estimation of life expectancy if their disease is no longer considered curable. The factors included whether an individual has an internal versus external locus of control, uses an active coping strategy or a planni… more
Date: August 2010
Creator: Mallory, Laurel J.
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Identity development across the lifespan.

Description: In an extension of Louden's work, this study investigated identity development across the lifespan by applying Erickson's and Marcia's identity constructs to two developmental models, the selective optimization and compensation model and a holistic wellness model. Data was gathered from traditionally aged college freshmen and adults older than 60 years of age. Uncommitted identity statuses and work and leisure wellness domains were endorsed across both groups, suggesting that identity for these… more
Date: August 2005
Creator: Louden, Linda L.
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Identity Status and Adjustment to Loss Among Adolescents

Description: The purpose of the present investigation was to explore the relationship of the adolescent experience of parental death to the variables of identity formation, adjustment, and coping. The inclusion of adolescents who had experienced parental divorce and those who had not experienced either loss condition allowed for group comparisons.
Date: August 1997
Creator: Servaty, Heather L.
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Idiographic Temporal Dynamics of Posttraumatic Stress Disorder (PTSD) Symptom Dimensions in Daily Life

Description: Understanding temporal relations among posttraumatic stress disorder (PTSD) symptom dimensions has received increasing attention in research. However, current findings in this area are limited by group-level approaches, which are based on inter-individual variation. PTSD is a heterogeneous syndrome and symptoms are likely to vary across individuals and time. Thus, it is important to examine temporal relations among PTSD symptom dimensions as dynamic processes and at the level of intra-individua… more
Date: December 2017
Creator: Schuler, Keke
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Imagery as a Skills Training Technique for Alcoholics

Description: Alcoholism is a major health problem, and current methods of treatment have been only partially successful. One treatment approach is to teach coping skills for dealing with problematic situations. This study was designed to investigate the effectiveness of imagery techniques in teaching coping skills. There were two major objectives of this study. The first objective was to determine whether covert skills training would produce positive changes in alcoholics in terms of their effectiveness in … more
Date: December 1980
Creator: Chadwell, Carrell Morgan
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Imagery/Mental Practice: A Cognitive Technique for Teaching Adaptive Movement to Postoperative Spinal Patients

Description: Postoperative spinal patients were randomly assigned to one of three treatment conditions and were taught five adaptive movements by occupational therapists. The Control group received routine hospital occupational therapy; the Placebo group participated in an imagery relaxation task unrelated to the mental practice task of the Imagery group, which was shown line drawings of the adaptive movements under study, provided movement instructions, and asked to mentally practice each movement in a fam… more
Date: December 1986
Creator: Ransom, Kay Johnson
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Imagery, Psychotherapy, and Directed Relaxation: Physiological Correlates

Description: Thirty outpatients being treated at Wilford Hall USAF Medical Center Department of Behavioral Health Psychology were randomly assigned to either a relaxation/imagery training class (R/I), a short-term psychotherapy group (P/G) or a no treatment control group. Subjects had psychological, physiological and immunological data taken before and after treatment. Results indicated that support for the hypothesis that relaxation/imagery training improves the psychological, physiological, and immunologi… more
Date: May 1992
Creator: Baldridge, Jeffrey T. (Jeffrey Turner)
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Imagery Technology: Effects on a Chronic Pain Population

Description: The effects of a computer program (Health Imagery Technology Systems, HITS) designed to promote attitude and cognitive changes through elicitation of evoked response potentials were evaluated with chronic pain patients. A treatment and control group were used for comparison (52 patients, 22 females, 32 males, mean ages 47). Wechsler Adult Intelligence Scale-Revised subtests, a Semantic Differential scale, the Health Attribution Test, an imagery protocol, the McCoy-Lawlis Pain Drawing, and the Z… more
Date: August 1986
Creator: Wright, Sharon G.
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Imaginal Response Events in Systematic Desensitization

Description: The present research was undertaken to investigate the effects of two independent variables considered potentially important to the reduction of fear through systematic desensitization. The first independent variable investigated was the importance of making covert motor responses when instructions were given to imagine motor behavior. Electromyographic measures were obtained on subjects' covert muscular activity as they imagined themselves raising their arms. The subjects were then classified,… more
Date: December 1977
Creator: Glenn, Sigrid S., 1939-
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Imaginative Involvement and Hypnotic Susceptibility

Description: J. Hilgard (1970, 1972, 1974, 1979), utilizing an interview format, asserted that a personality variable, namely, an individual's capacity to become imaginatively involved in experiences outside of hypnosis, was significantly correlated with his or her hypnotic susceptibility. Tellegen and Atkinson (1974) operationalized the imaginative involvement variable in a 37-item questionnaire, the Tellegen Absorption Scale (TAS) that correlated significantly with hypnotic susceptibility (e.g., Crawford,… more
Date: August 1987
Creator: Drake, Stephen Douglas
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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

Description: 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 membe… more
Date: August 2021
Creator: Caldas, Stephanie
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The Impact of Causative Genes on Neuropsychological Functioning in Familial Early-Onset Alzheimer's Disease: A Meta-Analysis

Description: Mutations of three genes encoding amyloid precursor protein (APP), presenilin-1 (PSEN1), and presenilin-2 (PSEN2) have been shown to reliably result in familial early-onset Alzheimer's disease (FAD); a rare, but catastrophic, subtype of Alzheimer's disease (AD) marked by symptom emergence before age 65 as well as accelerated cognitive deterioration. The current study represents the first known meta-analysis on the association of APP, PSEN1 or PSEN2 on neurocognitive variables. A total of 278 FA… more
Date: May 2017
Creator: Smotherman, Jesse M.
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Impact of Clinician Expectations on Termination Status and Therapeutic Outcome

Description: Given the high rates of premature termination in training clinics, research aimed at understanding client attrition is urgently needed. Recent investigations in this area have implicated expectations of psychotherapy as a strong predictor of premature termination; however, this phenomenon has only been studied from the perspective of client expectations to date. There is reason to believe clinician expectations for the duration and effectiveness of psychotherapy may further impact the likelihoo… more
Date: May 2013
Creator: Connor, Dana R.
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The Impact of Downsizing on Survivors' Career Development: A Test of Super's Theory

Description: The present study compared the career development concerns and other vocationally relevant variables of employees of organizations who have and have not engaged in downsizing within a one year timeframe. The sample consisted of 162 participants, 72 layoff survivors (those who remained in an organization after its downsizing) and 92 non-survivors (employees in organizations who have not downsized within 12 months). Significant results were found that differentiated the career related experiences… more
Date: August 2004
Creator: Lahner, Jessica M.
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Impact of Grit on Performance After Mastery- or Performance-Oriented Feedback

Description: Grit and achievement motivation have been predictors of behavior in academia and military settings (Duckworth, Matthews, Peterson, & Kelly, 2007), but to date, research on their effects on sport performance has been limited. Given grit's predictive role in other performance domains, grit may be influential in athletes' long-term goal attainment, interacting with their achievement motives and leading to better performances. Athletes' trait levels of grit may influence how they understand and res… more
Date: May 2016
Creator: Auerbach, Alex
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