Executive functioning (EF) is the cognitive processing of goal-oriented actions that are predictive of important life functioning skills. Middle childhood is an important time for academic achievement and social development. Positive and negative parenting practices were examined in the prediction of several child executive functioning outcomes in middle childhood, this thesis further examined whether early life socioeconomic status moderated such associations. This sample consisted of 708 twins (32% monozygotic, 36% same-sex dizygotic, and 32% opposite-sex dizygotic) with ethnically and socioeconomically diverse backgrounds at two age points, 12 months old (M = 12.5 months, SD = 1.06) and 8 years old (M = 8.41, SD = .40).There was a significant negative main effect between negative parenting and CPT. Further, positive parenting interacted with SES to predict CPT and Digit Span Forward. A significant positive effect was identified between positive parenting and CPT in low SES families, but not high SES families. Interestingly, greater positive parenting was associated with lower Digit Span Forward in high SES families, but not low SES families. These findings suggest that while negative parenting was associated with worse EF across the entire sample, the relationship between positive parenting practices and executive functioning outcomes differed based on early life socioeconomic status. Future research should examine whether various domains of executive functioning may follow different developmental patterns.

This study sought to determine if perceived neighborhood danger impacted children's sleep. The current study asks: how does perceived neighborhood danger impact children’s sleep both quantity and quality (duration and efficiency), could children’s physical activity mediate these associations, and how do genetic and environmental factors play into these relationships? Questionnaires, biological measurements, and actigraphy watch data were collected from 709 8-year-old Arizonan twins and their parents in order to calculate neighborhood safety, sedentary physical activity, moderate to vigorous physical activity, sleep duration, and sleep efficiency as well as covariates. It was concluded that perceived neighborhood danger does not directly impact children’s sleep duration and efficiency, children’s physical activity does not mediate the relation of perceived neighborhood danger and children’s sleep, but rather, perceived neighborhood danger indirectly impacts children’s sleep duration and efficiency through moderate to vigorous activity, and finally, that both sedentary and moderate to vigorous activity are heavily influenced by genetics.

The COVID-19 pandemic has generated alarming increases in psychological distress and alcohol use behaviors and has caused the greatest increases in depression and anxiety symptoms among college students. Prior studies have examined the impact of COVID-19 broadly on mental health and alcohol use outcomes; however, few studies have examined these impacts in college students. Previous studies have examined individual factors that could moderate the relation between COVID-19 related stressors and mental health and alcohol use outcomes, but knowledge is lacking regarding the role of emotion regulation. The present study aimed to examine the role of emotion regulation in the relation between both COVID-19 stressful experiences and COVID-19 related worry and mental health and alcohol use outcomes, and to explore racial/ethnic differences in their associations. Four hierarchical multiple regression models were conducted to assess main effects of COVID-19 stressors and emotion regulation, as well as moderation of the effect of emotion regulation on depression symptoms, anxiety symptoms, alcohol consumption, and alcohol use disorder (AUD) symptoms during the past year. COVID-19 related worry was associated with greater symptoms of both mental health outcomes, whereas COVID-19 related stressful experiences were associated with both mental health outcomes, more alcohol consumption, and more AUD symptoms. Difficulties in emotion regulation had significant main effects on mental health outcomes and AUD symptoms, but not alcohol consumption. Hispanic/Latinx students reported higher experiences of both COVID-19 related stressors, but consumed less alcohol than did White/European students. This study provides further insight into the nature of COVID-19 related stressors and their subsequent impacts. Implications for prevention and intervention on college campuses are discussed.

Stress is common, and potentially adverse, for individuals transitioning to college. The purpose of the present study was to describe and understand first year college students’ experiences of stress. Specifically, the goals of this study were twofold: (1) to describe the types of stressors experienced by students transitioning into college and (2) to understand the predictors of students’ experiences of the different forms of stressors. Ecological Momentary Assessments were collected over the course of the first semester of the participants’ (N = 194, 56% female) first semester of college. Stressors were coded into 8 categories: academic, global interpersonal (family, peer, other interpersonal), obligational, health, and finances. It was found that (aim 1) academic stressors were endorsed the most frequently, followed by global interpersonal stressors and obligational stressors. Results also showed that (aim 2) males reported more frequent academic stressors than females, and females reported more frequent interpersonal stressors than males. In addition, higher GPA was positively related to obligational stressors and family support was positively correlated with academic stress. These findings suggest a need for increased awareness of stressors that students within differing contexts experience in a university setting.

College students are exposed to stress accumulating from daily challenges, personal relationships, financial struggles, and academic pressure. Stressors can challenge an individual to perform better or serve as a hindrance to academic achievement, depending on the individual’s perception of stressors and capacity to overcome them (Lepine et al., 2004). Optimal levels of stress are beneficial to managing responsibilities in a timely manner, while unmanageable levels of stress can negatively impact motivation and achievement. Higher levels of negatively perceived stress could have measurable consequences on academic outcomes, including lower motivation and lower achievement. This study focuses on examining the prospective relationship between levels of college stress and the academic outcomes, accounting for individual differences in vulnerability to stress. Specifically, I examined whether the associations between stress (T2) and academic outcomes (T3) were moderated by earlier (T1) levels of economic hardship and effortful control as risk and resilience factors, respectively. I predicted that higher levels of college stress would be associated with lower academic motivation and performance. I expected that higher effortful control would show a stronger association between higher academic motivation and achievement with lower college stress levels. I also predicted that higher levels of familial economic hardship would exacerbate the influence of college stress on lower academic motivation and achievement. This study utilized data collected from survey measures administered to students during the transition from high school to college. Results demonstrated a significant negative association between increased college stress and higher academic outcomes. A lack of significant interactions propose that economic hardship does not have negative effects on academic outcomes. The findings of this study will help universities to support students experiencing detrimental levels of stress to improve later academic outcomes.

The neighborhood context is an important predicator of developmental outcomes, as it is where children spend much of their time. Especially when it comes to urban, low-income areas, high neighbor danger and crime have been considered a developmental risk. Research has documented the links between neighborhood environments and academic achievement, but less is known regarding the holistic view that considers contexts in conjunction with the neighborhood, despite these being important levels of influence. Thus, this study examined: 1) the direct associations between parent report of neighborhood danger and objectively measured neighborhood crime and academic achievement (e.g., Woodcock-Johnson IV), 2) family level stress as a potential mediator in these links, and 3) the teacher-child relationship as a potential moderator of these associations. Participants were from the ethnically and socioeconomically diverse Arizona Twin Project study (N=707 twin children, Mage = 8.44 years; SD = 0.69; 28.0% Hispanic/Latino, 57.7% Non-Hispanic White, 3.4% Asian American, 3.8% African American, 2.6% Native American, and 2.8% multiethnic or other; 53.5% middle to upper class, 15.6% lower middle class, 21.6% living near the poverty line, and 7.4% living in poverty as calculated by an income to needs ratio). There were no direct effects between subjective neighborhood danger and indicators of academic achievement, but there was a positive association between objective crime and scores on applied problems (an indicator of math achievement). Family- level stress was a significant mediator of perceptions of neighborhood danger and scores on passage comprehension (an indicator of reading achievement) but did not play a mediating role in the relation between objective crime and academic achievement. Specifically, higher levels of danger and crime were associated with greater levels of family stress, and lower levels of academic achievement scores. The teacher-child relationship was not a moderator in the relation between neighborhood danger/crime and academic achievement. Study findings provide additional evidence regarding the differences in subjectively versus objectively obtained data on the neighborhood environment and can inform future intervention (e.g., in the home and at schools) that support student’s academic achievement by addressing multiple levels of contextual influence.

Many studies indicate a positive relationship between fundamentalism and sexual and racial prejudice. Many of these studies use the Religious Fundamentalism Scale (RFS), the Attitudes Towards Homosexuals Scale (ATHS) and the Manitoba Scale. However, there appears to be overlap between RFS and both ATHS and the Manitoba Scale, unaddressed by the literature. This study looked at possible overlaps between RFS and ATHS and between RFS and the Manitoba Scale that could inflate the correlation statistic of fundamentalism and sexual and racial prejudice. The Intratextual Fundamentalism Scale (IFS), a study without authoritarian or apparent prejudice-overlapping items, was also tested for overlap. Results showed two-factor structures—namely fundamentalism and prejudice—with only two items loading to the opposite factor. However, there were many near-zero item loadings. The discussion suggests ways to change these items to increase factor loadings and to change overall measures construct validity. The correlations between fundamentalism and sexual prejudice were not significant before modifying the measures and were small and negative after modifying (modifying measures means removing all crossloaded and near-zero loaded items). The modified fundamentalism and sexual prejudice measures correlations do not follow the literature. This may be due to the sample including sexual orientation minorities and a majority of atheist, agnostic, or ‘nothing in particular’ affiliations. The correlations between fundamentalism and racial prejudice were medium and positive before modifying and were small and positive after modifying. This falls in line with the literature of small and medium positive correlation statistics.

I studied how hostile and benevolent language influences one’s ability to change their misconceptions. Participants were less likely to revise their misconceptions when reading tweets with hostile language than those exposed to benevolent language, which stresses adopting a neutral or benevolent tone to increase the likelihood of successful revision. This may be due to a shift of memory resources from the less engaging Tweet information to the more engaging, evocative hostile language.