Matching Items (1,034)
Filtering by

Clear all filters

149671-Thumbnail Image.png
Description
In this dissertation Mexican American (MA) youths environmental risk contexts, HPA axis functioning and mental health symptomatology were investigated in two separate studies. In the first study, environmental risk contexts were examined utilizing a person-centered approach and focusing on MA adolescents' family, peer, and cultural risk factors in fifth grade

In this dissertation Mexican American (MA) youths environmental risk contexts, HPA axis functioning and mental health symptomatology were investigated in two separate studies. In the first study, environmental risk contexts were examined utilizing a person-centered approach and focusing on MA adolescents' family, peer, and cultural risk factors in fifth grade (N = 750). Environmental contexts were then linked to mental health symptomatology in seventh grade. Results revealed three distinct environmental contexts: Low risk, Moderate risk-language, and High risk-peer. Youth in the High-risk peer context reported the highest levels of symptomatology; greater major depressive disorder (MDD), anxiety, conduct disorder (CD)/oppositional defiant disorder (ODD), and attention deficit hyperactive disorder (ADHD) symptoms than youth experiencing Low risk or Moderate risk-language context. Females, in particular, experiencing the High risk peer context appeared at greatest risk for MDD symptoms. Finally, adolescents in the Moderate risk-language context displayed similar levels of symptoms to the individuals in the Low risk context, with the exception of higher anxiety. This study suggested that MA youth live in unique environmental contexts and these contexts are differentially related to mental health symptomatology. In the second study, 98 MA youth participated in a three-day diurnal cortisol protocol in hopes of linking perceptions of discrimination and HPA diurnal cortisol rhythms. Results revealed that discrimination was related to greater overall cortisol output and marginally related to the cortisol awakening response and evening levels of cortisol. Results suggest that important physiological processes underlie the experiences of discrimination.
ContributorsZeiders, Katharine H (Author) / Roosa, Mark W. (Thesis advisor) / Doane, Leah D. (Committee member) / Dumka, Larry (Committee member) / Enders, Craig E. (Committee member) / Updegraff, Kimberly A. (Committee member) / Arizona State University (Publisher)
Created2011
150308-Thumbnail Image.png
Description
During adolescence, friends are a central part of adolescents' daily lives, they serve as significant sources of emotional support and companionship (Keefe & Berndt, 1996; Way & Robinson, 2003) as well as provide opportunities to negotiate interpersonal conflicts and disagreements (Laursen & Pursell, 2009). This study was designed to examine

During adolescence, friends are a central part of adolescents' daily lives, they serve as significant sources of emotional support and companionship (Keefe & Berndt, 1996; Way & Robinson, 2003) as well as provide opportunities to negotiate interpersonal conflicts and disagreements (Laursen & Pursell, 2009). This study was designed to examine the nature and correlates of friendships, capturing the multidimensional nature of these relationships. Specifically, three goals were proposed: (a) to use a pattern-analytic approach to identify different profiles of adolescents' friendships along three dimensions: intimacy, negativity, and involvement; (b) to examine linkages between profile membership and adolescents' cultural orientations and values; and (c) to explore the relation between profile membership and adolescent well-being. Participants were 246 Mexican-origin adolescents (M = 12.50 years; SD = 0.58) who participated in home interviews and a series of nightly phone calls. Adolescents reported on their friendship qualities, their cultural orientations and values, as well as their depressive symptoms, risky behaviors, and on their current grades (GPA). Adolescents' time spent with best friends was calculated from the seven nightly phone calls. Results revealed three distinct latent profiles: Positive Engagement, Moderate Engagement, and Low Involvement. Profile membership was not linked to adolescents' cultural orientations and values. Further, associations emerged between profile membership and adolescents' GPA, but not their risky behaviors and depressive symptoms.
ContributorsRodriguez, Sue Annie (Author) / Updegraff, Kimberly (Thesis advisor) / Umana-Taylor, Adriana (Committee member) / Bradley, Robert (Committee member) / Arizona State University (Publisher)
Created2011
137869-Thumbnail Image.png
Description
Meteorology is an uncommon term rarely resonating through elementary classrooms. However, it is a concept found in both fourth and sixth grade Arizona science standards. As issues involving the environment are becoming more pertinent, it is important to study and understand atmospheric processes along with fulfilling the standards for each

Meteorology is an uncommon term rarely resonating through elementary classrooms. However, it is a concept found in both fourth and sixth grade Arizona science standards. As issues involving the environment are becoming more pertinent, it is important to study and understand atmospheric processes along with fulfilling the standards for each grade level. This thesis project teaches the practical skills of weather map reading and weather forecasting through the creation and execution of an after school lesson with the aide of seven teen assistants.
ContributorsChoulet, Shayna (Author) / Walters, Debra (Thesis director) / Oliver, Jill (Committee member) / Balling, Robert (Committee member) / Barrett, The Honors College (Contributor) / College of Liberal Arts and Sciences (Contributor)
Created2012-12
137870-Thumbnail Image.png
Description
Plants are essential to human life. They release oxygen into the atmosphere for us to breathe. They also provide shelter, medicine, clothing, tools, and food. For many people, the food that is on their tables and in their supermarkets isn't given much thought. Where did it come from? What part

Plants are essential to human life. They release oxygen into the atmosphere for us to breathe. They also provide shelter, medicine, clothing, tools, and food. For many people, the food that is on their tables and in their supermarkets isn't given much thought. Where did it come from? What part of the plant is it? How does it relate to others in the plant kingdom? How do other cultures use this plant? The most many of us know about them is that they are at the supermarket when we need them for dinner (Nabhan, 2009) (Vileisis, 2008).
ContributorsBarron, Kara (Author) / Landrum, Leslie (Thesis director) / Swanson, Tod (Committee member) / Pigg, Kathleen (Committee member) / Barrett, The Honors College (Contributor) / College of Liberal Arts and Sciences (Contributor)
Created2012-12
137871-Thumbnail Image.png
DescriptionBased on previous research and findings it is proven that a non-profit class to create awareness will be beneficial in the prevention of eating disorders. This analysis will provide significant research to defend the proposed class.
ContributorsAllen, Brittany (Author) / Chung, Deborah (Author) / Fey, Richard (Thesis director) / Peck, Sidnee (Committee member) / Mazurkiewicz, Milena (Committee member) / Barrett, The Honors College (Contributor) / W. P. Carey School of Business (Contributor) / College of Liberal Arts and Sciences (Contributor)
Created2012-12
Description
Restraint stress is the most commonly used laboratory stressor. It is difficult to characterize as psychological or physical, because past studies show psychological features, but the nature of confinement adds a physical dimension. This was the first study to investigate how experience with restraint stress affects brain response to the

Restraint stress is the most commonly used laboratory stressor. It is difficult to characterize as psychological or physical, because past studies show psychological features, but the nature of confinement adds a physical dimension. This was the first study to investigate how experience with restraint stress affects brain response to the next stress without a physical burden. Pair-housed adult male rats were transported to a novel context and restrained or left undisturbed (6hr). The next day, rats were returned to the same context and were either restrained or left undisturbed in the context (n=8/group). After 90min, rats were euthanized to determine functional activation in limbic structures using Fos immunohistochemistry and to measure HPA axis reactivity through blood serum corticosterone levels. Regardless of day 1 experience, context exposure on day 2 enhanced Fos expression in CA1 and CA3 of the hippocampus, basolateral amygdala, and central amygdala. Conversely, other regions and corticosterone levels demonstrated modulation from the previous day's experience. Specifically, rats that were placed back into the restraint context but not restrained on day 2 showed enhanced Fos expression in the dentate gyrus suprapyramidal blade (DGSup), and infralimbic cortex (IL). Also Fos expression was attenuated in rats that received two restraint exposures in the IL and medial amygdala (MEA), suggesting habituation. Only the DG infrapyramidal blade (DGInf) showed enhanced Fos expression to restraint on day 2 without influence of the previous day. While context predominately directed Fos activation, prior experience with restraint influenced Fos expression in the DGSup, IL, MEA and corticosterone levels to support restraint having psychological components.
ContributorsAnouti, P. Danya (Author) / Conrad, D. Cheryl (Thesis director) / Hammer, Ronald (Committee member) / Hoffman, N. Ann (Committee member) / Barrett, The Honors College (Contributor) / College of Liberal Arts and Sciences (Contributor)
Created2012-12
137204-Thumbnail Image.png
Description
The issue of adolescent dating violence is a relatively new field of research, but several studies have shown that adolescent dating violence is distinct from adult domestic violence and has its own implications and patterns. Many studies have shown that both males and females appear to be the victims and

The issue of adolescent dating violence is a relatively new field of research, but several studies have shown that adolescent dating violence is distinct from adult domestic violence and has its own implications and patterns. Many studies have shown that both males and females appear to be the victims and perpetrators of dating violence, and often times in abusive dating relationships, the perpetration is mutual. Involvement with adolescent dating violence has serious physical and psychological health consequences, and in order to combat this social phenomenon, effective prevention programs are needed. The present study discusses key characteristics of school-based prevention programs that have been shown to be effective, as well as looks specifically at one such prevention program called BLOOM for Healthy Relationships™. The researcher in this study originally set out to conduct a program evaluation of BLOOM, but encountered several obstacles with the approval process that prevented the evaluation from being completed in the available time frame. This report is now framed as a case study that will discuss the necessary resources for preparing to conduct a program evaluation, describe the obstacles encountered in the approval process and make suggestions for future strategies to complete program evaluations of BLOOM.
ContributorsKellums, Megan Marie (Author) / Updegraff, Kimberly (Thesis director) / Dumka, Larry (Committee member) / Barrett, The Honors College (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Department of Psychology (Contributor)
Created2014-05
151461-Thumbnail Image.png
Description
Time adolescents spend in organized or informal skill based activities after school is associated with a variety of positive developmental outcomes. Little is known about how siblings might shape adolescents' motivation to participate in after-school activities. The current study applied the expectancy value model and ecological theory to understand if

Time adolescents spend in organized or informal skill based activities after school is associated with a variety of positive developmental outcomes. Little is known about how siblings might shape adolescents' motivation to participate in after-school activities. The current study applied the expectancy value model and ecological theory to understand if sibling behaviors were related to adolescents' after-school activities for 34 Mexican origin families. Qualitative and quantitative results suggested siblings engaged in five promoting behaviors (i.e., support, provider of information, role modeling, comparison, co-participation) and three inhibiting behaviors (i.e., babysitting, transportation, and negativity) towards adolescent activity participation. Furthermore, sibling behaviors differed by adolescent characteristics (i.e., cultural orientation, familism, and neighborhood) and sibling characteristics (i.e., gender, age). The results provide evidence of the various promoting and inhibiting socialization behaviors sibling might use to influence adolescents' activity motivation.
ContributorsPrice, Chara Dale (Author) / Simpkins, Sandra (Thesis advisor) / Updegraff, Kimberly (Committee member) / Menjivar, Cecilia (Committee member) / Arizona State University (Publisher)
Created2012
151420-Thumbnail Image.png
Description
The study of tomboys offers useful insights for the field of gender development. Tomboys have been the focus of several studies aimed at defining what a tomboy is (Bailey, Bechtold, & Berenbaum, 2002; Plumb & Cowan, 1984; Williams, Goodman, & Green, 1985) and what it means for children and adults

The study of tomboys offers useful insights for the field of gender development. Tomboys have been the focus of several studies aimed at defining what a tomboy is (Bailey, Bechtold, & Berenbaum, 2002; Plumb & Cowan, 1984; Williams, Goodman, & Green, 1985) and what it means for children and adults who are tomboys (Morgan, 1998; Williams et al., 1985). These and further questions necessitate understanding the correlates and consequences for children exhibiting tomboy behaviors. This study aims to address these gaps in the literature as part of a longitudinal study assessing children's gendered attitudes, relationships, and beliefs. A group of 4th grade girls (N=98), were administered questionnaires asking them about their tomboy gender identity and related behaviors and beliefs. The first research question concerns how we identify tomboys through parent, teacher, and child self-report, and the application of groupings of tomboys as never, sometimes, and always tomboys. It was found that children who fall into different classifications of tomboyism differ on their similarity to own- and other-sex peers on a number of dimensions (e.g. similarity, peer preference, activity preference). Never tomboys had the most similarity and interest to own-sex peers, always tomboys, to other-sex peers, and sometimes tomboys exhibited the most flexibility with interest similar to both own- and other-sex peers. Peer-related adjustment consequences and experiences were considered for the different groups of tomboys, with always tomboys being the most efficacious with other-sex peers, never tomboys being the most efficacious with own-sex peers, and sometimes tomboys showing both own- and other-sex peer interactions and the least exclusion of any group.
ContributorsEngland, Dawn (Author) / Martin, Carol L (Thesis advisor) / Zosuls, Kristina (Committee member) / Updegraff, Kimberly (Committee member) / Arizona State University (Publisher)
Created2012
151529-Thumbnail Image.png
Description
This dissertation used an evolutionary approach to examine the antecedents and outcomes to early pubertal development in girls in four major ethnic groups (i.e., European American, African American, Hispanic American, and Asian American). In the first study, logistic regressions were conducted to investigate the links between socioeconomic status (SES), parenting

This dissertation used an evolutionary approach to examine the antecedents and outcomes to early pubertal development in girls in four major ethnic groups (i.e., European American, African American, Hispanic American, and Asian American). In the first study, logistic regressions were conducted to investigate the links between socioeconomic status (SES), parenting behaviors, and father absence to pubertal development across and within ethnic groups. SES and father absence predicted earlier pubertal development among European, African, and Hispanic Americans but not for Asian Americans. In the second study, growth curves were estimated for sexual outcomes across ethnic groups. Early developing European and African American girls had higher levels of sexual risk and pregnancy into adulthood. Puberty did not predict outcomes for Hispanic and Asian American girls. Overall, the findings from both studies revealed the importance of investigating childhood environmental contexts, puberty, and sexual health outcomes using an evolutionary perspective.
ContributorsBecnel, Jennifer (Author) / Simpkins, Sandra (Thesis advisor) / Christopher, Scott (Thesis advisor) / Dumka, Larry (Committee member) / Updegraph, Kim (Committee member) / Arizona State University (Publisher)
Created2013