The peer group is a dynamic context within which children and adolescents have a wide range of experiences, both positive and negative. Friendships provide support and a sense of belonging; however, friendships can also be contexts within which competition and aggression occur. During childhood and adolescence, aggression and victimization are likely to occur in the school context and in situations where several members of the peer group are present and sometimes actively (or passively) participating. In the seminal work related to bullying as a group process, Salmivalli and colleagues identified distinct roles that children take when enacting aggression (Salmivalli et al., 1996). Salmivalli's work, in the area of participant roles, however, has focused on overt bullying, a specific subtype of aggression which has a specific meaning within the peer relations literature. To date, the participant roles have not been measured within the context of overt and relational aggression. The purpose of the present study is to examine the psychometric properties of the Overt Aggression Participant Role Scale (OAPRS) and the Relational Aggression Participant Role Scale (RAPRS), two new scales designed by the author, to measure the aggressor, assistant, reinforcer, defender, outsider, and victim roles during acts aggression, as opposed to bullying. Additional goals include: 1) exploring the associations among the roles, 2) examining measurement equivalence across gender and grade level, and 3) exploring associations of the participant roles with measures of sociometric status and depressive symptoms. Findings point toward the psychometric properties of the two scales being quite robust. The data fit the 12 factor model and the scales measure the constructs equivalently across gender and three grade groups. The aggressor, assistant, and reinforcer roles were strongly associated as were the aggressor and victim roles. Several relational roles were highly overlapping, suggesting reciprocity of roles. Few meaningful gender or grade level differences were found resulting in more similarity in the overt and relational roles than differences. The outsider role was the only role not associated with depressive symptoms. Implications for prevention and intervention are discussed.

Researchers must consider the role of context when examining the behavior and characteristics of an individual. An individual must alter development, characteristics, and behavior, to adequately meet the challenges presented within their ecology. The following dissertation presents three manuscripts that examine individual differences while considering the role ecological (spatial) and developmental (temporal) context plays on the individual. Each paper utilizes Life History Theory to examine and to integrate the study findings into a cohesive framework. Life history theory is an evolutionary-developmental theory that focuses on how allocation of bioenergetic and material resources to different developmental facets will have long-term implications for behavior, traits, and health. Each paper collectively highlights key contextual factors throughout the lifespan and seeks to understand how life history strategies emerge. Study I examined the role mother's behavior had on the development of the child unpredictability schema (i.e., worldview where children view their environment and others as unreliable). The study included 65 children and their mothers. Results revealed that child unpredictability schema was predicted by mother's mating and parental effort. A quadratic effect was also found, whereby child unpredictability schema became constant at lower levels of parental effort. Study II utilized retrospective reports of childhood parental effort from extended kin family, positive emotional environment, and traditional social values from a sample of 200 Mexican and Costa Rican college students. High levels of childcare assistance from patrilineal and matrilineal kin were associated with more positive family environment, and the association was partially mediated between kin care and slow life history. Positive associations were also found between matrilineal kin childcare and traditional Latin social values. Study III utilized a nationally-representative, all-female sample to test whether higher reproductive effort increases physical/mental deterioration in women. Results reveal that reproductive effort and illness were mediated by both antioxidant defenses and inflammation. The results of the three studies broadly support hypotheses generated from Life History Theory. Contextual factors during key developmental stages have an impact on how an individual will allocate time and bioenergetic resources - thus contributing to specific behavioral life history strategies.

The goal of this dissertation is to examine minority stress in the lives of gay and lesbian individuals and couples. To do this I conducted three separate, but empirically and conceptually related studies using data from 68 self-identified gay men and lesbians. Of these, 38 participants were coupled (n = 19 couples). All three studies were informed by minority stress theory. In the first study I examined individual (N = 68) and partner (n = 38) correlates and associations with concern for safety because of sexual orientation and harassment because of sexual orientation. Comfort with homosexuality was the strongest negative predictor of concern for safety because of sexual orientation. Further, involvement with gay related activities was found to be the strongest positive predictor of harassment because of sexual orientation. In the next two studies I examined the daily influence of minority stress for same-sex couples (n = 19). In the second study I examined how daily public displays (PDA) of affection are associated with daily relationship satisfaction, daily concern for safety because of sexual orientation, and daily harassment because of sexual orientation. I found daily PDA to be positively associated with concurrent and lagged relationship satisfaction, positively associated with concurrent and lagged concern for safety, and concurrent, lagged, and prospective increases in harassment because of sexual orientation. In the third and final study I examined the moderating effect of daily relationship satisfaction on the relationships between daily concern for safety and harassment in predicting daily physical health and well-being. I find that daily concern for safety and harassment are not associated with daily physical health suggesting that the negative effects of minority stress on physical health are more cumulative and do not fluctuate from day-to-day. I also find that daily relationship satisfaction does moderate the relationship between daily concern for safety and harassment and their daily well-being in unexpected ways. Collectively, this dissertation illustrates the complex influence of minority stress in the lives of gay and lesbian individuals and couples in two ways: first, as it pertains to how personal characteristics and behaviors (e.g. involvement with gay related activities and engagement in PDA) are associated with minority stress overall and on a daily basis; second, by illustrating the daily influence of minority stress on daily physical health and well-being. In conclusion, in these studies I highlight the complexity of life and how minority stress, stress that is unique to gay men and lesbian individuals and couples, complicates otherwise beneficial behaviors. Further, I illustrate the long and short term ramifications minority stress has on gay men and lesbian individuals and couples.

Estimates suggest that 40% of the food grown in the United States ends up in landfills. Household losses are the highest contributor to volume of waste overall, and individual households are estimated to discard around 15% of their total acquired food inventory. Consumers are generally waste averse and a vast majority have been shown to object to wasting food in particular, yet almost all consumers discard a substantial volume of potentially edible food each year. This exploratory qualitative study sought to uncover underlying psychological mechanisms behind this discrepancy between attitude and behavior by exploring the decision-making processes that consumers engage in as they acquire, prepare, consume and discard food. By exploring the patterns of thinking that shape household provisioning practices through an initial in-depth interview, a two-week long household food diary and a follow-up interview with 17 diverse consumers, a grounded theory emerged to explain this counter-intuitive behavior pattern. Extending research from behavioral economics and decision making literature, data from this study suggests the following: 1) people evaluate cost of goods based on incomplete value estimations that fail to account for the costs associated with discarding potentially edible foods; 2) costs associated with the act of shopping are salient and encourage less frequent provisioning trips; 3) people do not adequately account for costs associated with overbuying and storing food; and 4) consumer strategies aimed at maximize efficiency in food acquisition through less frequent shopping trips may actually result in increased inefficiency in the form of greater waste and higher overall cost of goods. Based on emergent findings, a strategy for waste avoidance is presented along with managerial implications.

Counterfeit consumption is becoming widespread, developing into a problem of international significance. In an attempt to develop a refined understanding of the motivations and decision-making processes of consumers' deliberate counterfeit-consumption behavior, this empirical study not only integrates the theory of planned behavior and insights from self-regulatory theories, but also extends these theories by re-conceptualizing the relationships among key constructs with the inclusion of action desire. This research also introduces and integrates a new construct, namely consumers' Perceived Counterfeit Detection (PCD) by important others.Using a combination of qualitative and quantitative methods consisting of in-depth interviews and a self-administered paper questionnaire, this research empirically tested a proposed goal-striving model for deliberate counterfeit-consumption behavior, using structural equations modeling. Results demonstrated PCD's existence and supported a refined goal-striving model, based upon which effective strategies to decrease consumer's counterfeit consumption are discussed.

During adolescence many youth spend increasing amounts of time gaining new knowledge and skills outside of their home in environments such as structured afterschool activities. In these settings, youth have meaningful opportunities to explore new interests, develop varied competencies, and seek social support from peers and adults. As youth get older rates of participation in structured activities decline. Given the role that structured activities can play in nurturing positive youth development, gaining a better understanding of how peers may affect youth's choice to participate in structured activities is important. This study used logistic regression to examine the role of peer influence and how the perceptions of close friends (direct peer influence) and other peers (social norms) impact a youth's decision to participate in structured activities as well as use alcohol and marijuana. Additionally, the association between youth participation in structured activities and reported use of alcohol and marijuana was examined. Study results indicated that youth who reported engaging in specific types of structured activities, specifically performing arts and volunteering, reported lower rates of alcohol and marijuana use respectively. Direct peer influence was an important factor in substance use whereby for each additional best friend a youth had that participated in school activities, students were less likely to have used alcohol or marijuana. Findings are interpreted using an ecological systems perspective and demonstrate that gaining a better understanding of the influence that direct peers and social norms exert on youth behavior has important implications for promoting the positive development of youth.

Science, technology, engineering and mathematics (STEM) education concepts are naturally contextualized in the study of food and nutrition. In 2014 a pilot group of Utah high school Career and Technical Education Family and Consumer Sciences teachers rewrote the Food and Nutrition Sciences curriculum to add and enhance the STEM-related content. This study is an online needs assessment by Utah Food and Nutrition 1 teachers on the implementation of the STEM-enhanced curriculum after its first year of use in 2015-2016. A Borich needs assessment model was used to create mean weighted discrepancy scores between teacher-perceived levels of importance and teacher-perceived competence for each objective in the new curriculum in order to prioritize professional development needs felt by the teachers. The survey also gathered data on educational backgrounds, teaching experience, demographics, and recommendations from the teachers about barriers and aids to implementation. While it was found that teachers felt moderately competent to teach the new curriculum, the most needed areas of professional development were in the objectives with the highest concentration of STEM-related concepts. In order bring teacher feelings of competence up to the levels of teacher perceptions of the importance of these STEM-related objectives, teachers need to deepen their own knowledge of STEM education concepts through substantive, on-going professional development. Focused webinars and facilitated online collaborations for the teachers would call attention to new and previously missed resources and help the teachers apply them in the classroom.

The study's purpose was to identify the perceived needs and concerns of three generations in a family with an older adult aging in place in Mississippi. This mixed-methods study used snowball sampling in addition to recruitment by community leaders such as Extension agents to collect data through semi-structured interviews and structured questionnaires that asked about current and future problems among aging adults in rural communities in Mississippi. Three generations of Mississippians participated in the study, including older adults (G1; n = 22), adult children (G2; n = 23), and young adult grandchildren (G3; n = 19). Quantitative data were analyzed using SPSS Statistics, while qualitative data were managed with MaxQDA. Physical and mental health concerns were identified across all three generations. Financial concerns, including paying for basics such as food, medical and health care costs, and transportation issues, were most often reported by the two younger generations rather than the older adults. Services that assist with caregiving of older adults, including respite care, home health, and adult daycare options, were identified as services G2 and G3 family members reported as families currently needed or anticipated to need soon. Implications of the findings for families, community leaders, policymakers, non-profit organizations, and for-profit businesses are provided.

No description available.

Extensive research has clearly revealed that people of all ages can enhance their health by simply incorporating moderate levels of physical activity into their daily routine. Physical activity significantly reduces the risk of morbidity and mortality from coronary heart disease while providing protective benefits from hypertension, diabetes mellitus, osteoporosis, and colon cancer. Physical activity can lead to positive psychological improvements by decreasing levels of anxiety and depression, and enhancing self-esteem. However, despite the tremendous physical and mental health benefits, 60% of American adults do not regularly engage in physical activity and 25% are completely inactive. Moreover, only 34 % of Virginians engage in regular physical activity. Immense progress has been made in terms of understanding physical activity behavior. Many techniques based on theoretical models have been developed for intervening with physical activity behaviors and designing of programs. The Transtheoretical model is considered one of the most promising approaches for enhancing physical activity behavior. This model integrates current behavioral status with a person's intention to change his/her behavior and suggests that individuals attempting to adopt a health behavior progress through five stages of change: precontemplation, contemplation, preparation, action, and maintenance. The concepts of self-efficacy (degree of confidence) and decisional balance (perceived benefits and barriers) are often used in conjunction with the stages of change for physical activity interventions to help individuals progress through the five stages of change. A survey was conducted among 243 Family and Consumer Sciences educators and clientele in Virginia's Cooperative Extension program. Attitudes, preferences, stages of change, perceived incentives and barriers, along with desired education channels and activities were analyzed to provide a basis for development of effective Extension publications and programs aimed to increase and improve levels of physical activity. Results from this study indicate that almost half of the respondents are not regularly engaging in physical activity and 31% are not engaging in any activity. Data revealed significant relationships between the stages of exercise change with respondents' levels of confidence (p<.0001) and with decisional balance scores (p<.0001). Participants who lead sedentary lifestyles or participate occasionally in physical activity (precontemplation contemplation, and preparation stages) viewed the barriers of physical activity to surpass the benefits. Consequently, these participants had low confidence in their ability to participate in physical activity. On the other hand, participants who exercised on a regular basis (action and maintenance stages) perceive the benefits for physical activity to outweigh the barriers. Furthermore, these participants had high confidence in their ability to exercise in challenging situations. Results from this study also suggest that stage of exercise change may be related to an individual's educational level. Regardless of age and gender, educational channels in which respondents selected to receive physical activity information were brochures and newsletters. In addition, activities in which respondents were most frequently engaging were walking and yard work. The activity that subjects selected as a means to increase physical activity levels was also walking. The results from this study can help Extension agents and specialists develop appealing physical activity educational materials and programs that meet the needs of FCS clients. These programs may help FCS clients incorporate regular physical activity in their daily lives, moving closer to achieving the State's objective for increasing physical activity among Virginia adults and, thus, leading to improved quality of life. / Master of Science