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The Relationship Between Neuroticism, Self-Esteem, And Disordered Eating Attitudes: Examining The Health At Every Size Theory, Liana Cho

Masters Theses

Background. In the modern day treatment of overweight/obesity, conflicting recommendations regarding treatment have been released by the Academy of Nutrition and Dietetics (AND) and advocates of the Health at Every Size (HAES) movement. While the AND have indicated their support for self-monitoring practices, such as keeping a food diary or tracking calories, HAES advocates have claimed that these restrictive practices may result in increased disordered eating tendencies and poor self-esteem.

Subjects. The participants for this study included 410 students at Grand Valley State University. Almost 80% of participants were female, and just over 85% of participants identified as white. …

The Passive Effects Of Full-Gateway, In-Street Signs On Vehicular Speed, De'lon Dixon

Masters Theses

Reducing motorist’s speed when approaching crosswalks is an important goal in reducing the number of collision between motorist and pedestrian in crosswalks. The current study addresses this goal. The effect of gateway installation of in-street signs (one in-street sign installed between the two travel lanes in each direction and one on both edges of the roadway in each direction) on vehicle speed was evaluated on nine roads. The results demonstrated that the Gateway in-street sign treatment produced large speed reductions as vehicles approached the crosswalk and at the crosswalk. The average speed reduction was 3.8 mph at the crosswalk and …

The Spark Of Recovery: Artistic Methods That Generate Dialogue And Reduce Stigma In Families Affected By Mood Disorders, Adara Jensen

Masters Theses

Mood disorders, such as major depression and bipolar disorder negatively affect family dynamics, often resulting in trauma, antipathy, mistrust, and the breakdown in communication between the individual suffering from mood disorder and members of his or her family. The impact of mood disorder on family members impedes recovery for the person suffering from the disorder as well as the health and well-being of the family as a whole. Even emotionally healthy families suffer from the subsequent pain, trauma, isolation, and stigma. The project proposes a solution to broken or inhibited family communication: the engagement of all family members in healing …

The Effects Of Reward And Risk Level Associated With Speeded Actions: Evidence From Behavior And Electroencephalography, Xingjie Chen

Masters Theses

Choosing a course of action in our daily lives requires an accurate assessment of the associated risks as well as the potential rewards. The present two studies investigated the mechanism of how reward and risk level influence the motor decisions of speeded actions (Chapter 2) and its neural dynamics (Chapter 3) by focusing on the beta band (15-30 Hz) oscillation patterns reflected in the EEG signals. Participants performed a modified version of the Go-NoGo task, in which they earned reward points based on the speed and accuracy of response. On each trial, the reward points at stake (120 vs. 6) …

Influence Of Household Chaos On Associations Between Physiology And Behavior, Sarah Mccormick

Masters Theses

Internalizing behaviors, or behaviors related to behavioral inhibition and the tendency to withdraw from novelty or uncertainty, are stable over time. There is substantial evidence indicating the association between greater resting right lateralized frontal EEG alpha asymmetry and negative affect as well as internalizing behaviors (Coan & Allen, 2003; Henderson, Fox, & Rubin, 2001; Fox, 1991). Further, right frontal asymmetry has been shown to be a stable marker of the presence of psychosocial risk (e.g. child maltreatment; see Peltola, Bakermans-Kranenburg, Alink, Huffmeijer, Biro, & van IJzendoorn, 2014 for meta-analyses). However, little is known about the influences of the home and …

The Effects Of Gateway Width On Driver Yielding To Pedestrians: A Systematic And Parametric Analysis, Jonathan M. Hochmuth

Masters Theses

The gateway in-street sign treatment has been demonstrated to be a cost-effective method for increasing driver yielding behavior at crosswalks. In the present study, wide and narrow gateway widths were compared at two sites to determine if there was a differential effect on driver yielding behavior. Then, the relationship between width and yielding was refined with a parametric analysis at one of these sites. Gateway width was varied in two-foot intervals from 12ft to 18ft. The results indicated an inverse relationship between gateway width and driver yielding behavior. There are likely two variables related to this effect. First, because drivers …

Application Of A Three-Lever Drug Discrimination Method To Differentiate The Interoceptive Stimulus Effects Of 3, 4-Methylenedioxypyrovalerone And 4-Methylmethcathinone In Male Sprague-Dawley Rats, Trent Bullock

Masters Theses

Psychoactive “bath salts” represent a continuing drug abuse problem. The synthetic cathinones, 3, 4-methylenedioxypyrovalerone (MDPV) and 4-methylmethcathinone (4-MMC) are popular constituents of “bath salts” in the United States and the United Kingdom, respectively. Addiction to these substances has proven difficult to treat, possibly requiring targeted therapeutics. Drug discrimination is a preclinical assay that may aid in treatment development. Thus far, two-lever (drug vs no drug) discrimination studies have exhibited asymmetrical substitution patterns between 4-MMC and MDPV. Therefore, a three-lever discrimination method was employed in which 12 male Sprague-Dawley rats were trained to discriminate 0.5 mg/kg MDPV, 2.0 mg/kg 4-MMC, and …

Contribution Of Monoaminergic Mechanisms To The Discriminative Stimulus Effects Of 3,4-Methylenedioxypyrovalerone (Mdpv) In Sprague-Dawley Rats, Harmony I. Risca

Masters Theses

3,4-Methylenedioxypyrovalerone (MDPV) is a popular synthetic cathinone reported to have a high abuse potential and comparable pharmacological actions to those of cocaine. The aim of this study was to evaluate a variety of monoaminergic agents for substitution, potentiation, or antagonism in rats trained to discriminate MDPV. Male Sprague-Dawley rats were trained to discriminate 0.5 mg/kg MDPV and a variety of monoaminergic drugs were tested for substitution and/or potentiation of the MDPV cue. In separate experiments, stimulus antagonism tests were conducted with selected dopamine antagonists or serotonin antagonists in rats trained to discriminate 1 mg/kg MDPV. Full substitution for MDPV was …

A Parametric Analysis Of Choice Under Risk, David W. Sottile

Masters Theses

Accurate assessment of risk propensity is important because risky choices underlie a broad range of behavioral problems. The Balloon Analogue Risk Task (BART) is an assessment that measures propensity to engage in risky choice. While this is a useful assessment, the BART changes two variables that affect risky choice simultaneously, probability of an undesirable outcome and stake size, which cannot be separated within the context of the BART. The goal of this study was to evaluate the separate and combined effects of key factors that are likely to risky choice (Magnitude of payoff, probability of an undesirable outcome, and stake …

Evaluation Of Generalized And Specific Token Reinforcement Using A Paired Stimulus Preference Assessment And Progressive Ratio Schedules, Haily K. Traxler

Masters Theses

Skinner (1953) stated that the effects of generalized conditioned reinforcers should maintain longer than specific conditioned reinforcers because their effects are not dependent on a particular motivating operation. Tokens easily model different levels of generality because tokens can be paired with one or more back-up reinforcers. In the current study, three types of tokens were assessed that could be exchanged for either salty snacks, food and drinks offered in a small marketplace, or money on a gift card. Token preferences were assessed using a Paired Stimulus preference assessment and a progressive ratio (PR) task. The results of the preference assessment …

Children's Self-Regulation During Reward Delay, Abigail Fontaine

Masters Theses

Individuals who display high levels of reward sensitivity are motivated by and respond to reward related cues, thus exhibiting more approach-motivated behaviors. A majority of the research on physiological indices of reward sensitivity in relation to self-regulatory abilities has focused on adults or adolescents, with relatively little work examining these associations in children. Thus, the current study sought to examine whether a common neural measure of reward sensitivity, left frontal electroencephalogram (EEG) asymmetry, assessed in early childhood was predictive of children’s later self-regulation abilities in the context of reward delay. Emerging inhibitory control skills were also examined as a potential …

Effort-Related Motivational Dysfunctions: Behavioral And Neurochemical Studies Of The Wistar-Kyoto Rat Model Of Depression, Brendan Abbott

Masters Theses

Depression and related disorders are characterized by motivational dysfunctions, including deficits in behavioral activation and exertion of effort. Animal models of relevance to depression represent a critical starting point in elucidating the neurobiological mechanisms underlying motivational dysfunctions. The present study explored the use of the Wistar-Kyoto (WKY) animal model of depression to examine effort-related functions as measured by voluntary wheel running and performance on a mixed fixed ratio 5/progressive ratio (FR5/PR) operant task. Given the known link between activational aspects of motivation and the mesocorticolimbic dopamine (DA) system, the behavioral effects of d-amphetamine (0.5 and 1.0 mg/kg, IP), a psychostimulant …

Peer Attention Modeling With Head Pose Trajectory Tracking Using Temporal Thermal Maps, Corey Michael Johnson

Masters Theses

Human head pose trajectories can represent a wealth of implicit information such as areas of attention, body language, potential future actions, and more. This signal is of high value for use in Human-Robot teams due to the implicit information encoded within it. Although team-based tasks require both explicit and implicit communication among peers, large team sizes, noisy environments, distance, and mission urgency can inhibit the frequency and quality of explicit communication. The goal for this thesis is to improve the capabilities of Human-Robot teams by making use of implicit communication. In support of this goal, the following hypotheses are investigated: …

Age Group Differences In Affect Responses To A Stressor, Molly Mather

Masters Theses

Older adults may be better able to modulate their emotional experiences than younger adults, and thus may recover more quickly from negative stressors. Additionally, older adults may be more likely to experience co-occurrence of negative and positive emotions in the setting of negative stressors, which may facilitate emotion recovery. To date, few studies have investigated the nature of age group differences in spontaneous emotional responses to a standardized stressor. The current study utilizes a laboratory mood manipulation to determine age group differences in emotion recovery in negative and positive affects, as well as age group differences in the co-occurrence of …

Borderline Personality And Risk-Taking: Examining The Role Of Impulsivity Across Domains, Colten Karnedy

Masters Theses

Individuals with borderline personality disorder (BPD) and high levels of BPD traits have demonstrated greater rates of engagement in risky, self-destructive behaviors compared to healthy controls. Specifically, impulsivity has been theorized to underlie many of these risky behaviors. Although existing self-report literature suggests that individuals with BPD are more impulsive than controls, evidence from behavioral measures remains inconclusive. Likewise, there is scant research examining specific domains of impulsivity associated with risky behaviors in BPD, which is problematic given that impulsivity is a diagnostic criterion for BPD. Thus, the proposed research aims to bridge this gap in the literature by examining …

Understanding Relational Competence In Emerging Adult Adoptees: A New Way To Conceptualize Competence In Close Relationships, Krystal K. Cashen

Masters Theses

Relatively little research has focused on the positive adjustment of emerging adult adoptees (Palacios & Brodzinsky, 2010). Given the developmental context of emerging adulthood (Arnett, 2000), it is important to select a measure of adjustment that reflects the increased ambiguity seen in this time period. The present study aims to develop and validate a measure of relational competence, or competence in one’s closest relationship regardless of relationship type (i.e., romantic vs. nonromantic). This measure will be created by adapting the Romantic Competence Interview, a measure of romantic competence previously used with emerging adults (Shulman, Davila, & Shachar-Shapira, 2011). Participants …

Loss Of Trust: The Negative Effects Of Leader Discrimination And The Mitigating Effects Of Organizational Response, Andrew Wade Pepper

Masters Theses

"This thesis focuses on how perceptions of leader discriminatory behavior influence trust in the leader and, subsequently, attitudes about the organization which the leader represents. This study builds on previous research findings by creating a 2 (discriminatory interaction) X 2 (procedural response) X 2 (distributive response) experimental design model with vignettes that focused a leader's discriminatory or non-discriminatory behaviors and how the organization responds to accusations of such behavior. Participants (N = 293) were recruited from Amazon Mechanical Turk and randomly assigned to read one of the two vignettes describing a supervisor's discriminatory or non-discriminatory behavior. After reporting perceptions shaped …

Is A Measure Of Observed Engagement As Valid As Self-Reported Engagement Measure?, Debarati Majumdar

Masters Theses

"The present study attempted to investigate a never explored research question, i.e., whether an observed engagement measure would be as valid as self-reported engagement measure. Data were collected from the employees of an academic institute. Minimum of 110 self-ratings from subordinate employees (i.e. the self-raters) and 110 observer-ratings from those subordinates' respective supervisor employees (i.e. the other raters) were supposed to be collected to robustly test the formulated hypotheses of the present study. However, due to some sudden structural changes within the organization (i.e. the academic institute from where data were collected), only 32 observer-ratings and 32 self-ratings (i.e. 32 …

The Effects Of Privacy Violation Abstractness On Privacy Attitudes And Behaviors, Delicia Anceisao Vaz

Masters Theses

"This research investigates new methods to present privacy policy information to consumers. It makes the argument that current privacy policies do not present consumers with information in a manner that helps align their privacy attitudes with their privacy behaviors. With the introduction of smart appliances to the market, it is critical that appropriate privacy policies are created to equip consumers with information that is easy to understand. Neutral Examples and Risk Examples were created along with the Traditional Content of a privacy policy. These three components were used in different combinations to provide privacy information about smart appliances. Additionally, it …

Social Anxiety And Problematic Drinking In College Students: Examining Potential Mediators, Carissa Gutsmiedl

Masters Theses

Social anxiety and problematic drinking are among the most prevalent disorders present in the college population. Having one or both of these disorders while in college can be detrimental to academic performance and can increase dropout rates. Social anxiety has been found to precede problematic drinking in previous research. The purpose of this study was to help determine what variables may explain this relationship (i.e., mediators). The current study tested whether emotion regulation difficulties, drinking motives, alcohol outcome expectancies, and self-discrepancy mediated the relationship between social anxiety and problematic drinking among college undergraduates (N = 135). Results indicated that emotion …

Art Majors' Perceptions Of Their Self-Concept, Academic Self-Efficacy, And Social Identity, Sara E. Triplett

Masters Theses

This study utilized a qualitative approach was used to provide insight into students' perspectives on their self-concept, academic self-efficacy, and social identity in relation to their majors at a mid-size Midwestern university. Two undergraduate students majoring in 2D Studio Art and three undergraduate students majoring in Theater Performance were interviewed. Through individual interviews several themes emerged such as: 1) using art to have a meaningful impact on the audience, communicating a message, and clarifying their understanding of the world was important; 2) clear professional support strengthened art majors' self-efficacy; and 3) peer groups play a large part in art majors' …

Factors Influencing Teacher And Adminstrators' Knowledge And Attitudes About Adolescent Depression, Suicide, And Prevention, Kayla N. Quick

Masters Theses

To date, research has yet to be conducted that examines U.S. secondary school teachers' and administrators' attitudes toward intervening with potentially depressed and/or suicidal students. Additionally, research is needed to identify the demographic characteristics of educators that are associated with general knowledge of adolescent suicide and the risk factors and warning signs that often accompany it. The purpose of the present study was to examine the following hypotheses: 1) certain characteristics (e.g. gender, years of experience with educating children, the amount of training received on adolescent depression/suicide, and knowledge of adolescent suicide and depression) are better predictors of attitudes toward …

Linguistic Correlates Of The Quiet Ego In Narratives About The Self, Katherine Maurer

Masters Theses

Increasingly, research has shown that the drive to elevate the self and the excessive pursuit of self-esteem have negative effects on well-being and mental health. In addition, many of the defensive and aggressive tendencies seen in psychological research can be seen as efforts to defend and elevate the self. In contrast to these tendencies, the quiet ego construct describes a state of ego balance characterized by an inclusive sense of identity, perspective-taking, detached awareness (mindfulness), and growth orientation. The quiet ego and related qualities have been associated with many positive outcomes. A body of research using the Linguistic Inquiry and …

The Relationship Between Stress, Preventive Coping Resources, And Burnout Among Elementary Teachers, Joseph Michael Mooney

Masters Theses

This study explored the relationship between stress outcomes, preventive coping, and burnout in a sample of 68 elementary teachers. Teacher training in behavioral modification was also examined due to its established role in teacher stress. Results showed that teachers who had greater demands relative to coping resources were more likely to experience two aspects of burnout; emotional exhaustion and depersonalization. A significant relationship was not found with the third component of burnout, personal accomplishment. Preventive coping resources were found to be associated in the expected direction with all three components of burnout. Those individuals with fewer preventive coping resources exhibited …

A Photo Illicit Study Of Black Women's Sense Of Belonging At A Predominately White Institution, Kayla Alexandria Slusher

Masters Theses

This qualitative study sought to examine how Black women define and create their sense of belonging while attending a predominately White institution using a photovoice approach. The women took photographs of spaces that they frequently occupy and then engaged in a face-to-face interview to discuss the photographs. The researcher also investigated four Black women, ranging from junior to graduate level, to identify how they developed a sense of belonging at the research site institution. Results of the study showed that a feeling of comfort was most important when identifying belongingness in a space. The participants were able to create a …

The Development Of Serial Killers: A Grounded Theory Study, Meher Sharma

Masters Theses

The worldview that portrays a serial killer as being a white male, an evil monster with unusual appearance, having dysfunctional relationships (Yaksic, 2015), engaging in animal torture or being sexually or physical abused in childhood, and therefore, sadistically killing for sexual gratification should be challenged (Beasley, 2004). Leyton (1996) and Skrapec (2001) suggested researchers should approach with open minds while searching for knowledge relating to this phenomenon without preconceived assumptions or hypotheses. Furthermore, every serial killers' drive to kill multiple victims may be unique, dependent on his/her history and experiences, and is therefore difficult to quantify (Yaksic, 2015). The current …

Digit Ratio As A Predictor Of Risk Taking And Sensation Seeking Personality Traits And Behaviors, Hanna Elizabeth Hobson

Masters Theses

Digit ratio is the difference in length between the pointer finger and the ring finger on either hand. Commonly referred to as the 2D:4D ratio, this ratio is determined prior to birth, and serves as an indicator of prenatal hormone exposure. Digit ratio has been found to correlate with fundamental personality and behavior characteristics in adulthood. Digit ratio is also thought to be a determinate of sexual orientation in both men and women, but has been debated in the literature. This study examined multiple 2D:4D relationships. Men who were found to have a more masculinized (ie. lower) digit ratio had …

Students Perspective Of Healthy Living In College, Andrea Coxey

Masters Theses

Using qualitative methodology, the researcher studied what participants definition of a healthy lifestyle as compared to how they actually live. Through conducting six one on one interviews with participants, it was found that physical health was the most widely recognized aspect of health, and that each participant had a unique definition of health. Mental health was not initially recognized by participants but was shown to be an important connection to all aspects of health including physical health, emotional health, sleep and nutrition. Participants recognized the importance of involvement and their transition to college as impacting their definition of health and …

Why A Negative Body Image? A Study On Gender, Social Media, And Mass Media, Taryn Bland Teeters

Masters Theses

This study was designed to identify the contributors to body image (BI) dissatisfaction. The factors affecting the adult body image and the extent of their consequences were examined. This study attempted to determine the extent to which these individual's peers, the mass media, and social media affect their BI, body shaming, and the individual's shame of others.

An anonymous online questionnaire was utilized and sent to participants by snowballing through the use of Facebook and email. Participants were asked to identify their age, gender, pleasing and displeasing body parts, their use of social media, and an overall rating of their …

The Role Of Contact And Empathy In Stigma Toward Individuals With Mental Illness Among Mental Health And Non-Mental Health Professionals, Quincy A. Knolhoff

Masters Theses

This study was designed to help identify the factors that predict people's stigmatized attitudes toward individuals with mental illness. Corrigan (2002) suggested that stigmatized beliefs about individuals with mental illness may be detrimental to the potential recovery of these individuals, their self-esteem, empowerment, and their integration into society. One factor that has been found to reduce this stigma is personal contact with mentally ill individuals (Corrigan et al., 2002). Additionally, research has shown that empathy and principled moral reasoning are negatively correlated with prejudice, or stigma (McFarland, 2010). The current study examined level of contact, employment in a mental health …