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The purpose of this study was to determine the relationship between extracurricular activities and self-regulation in 400 five year old twin children. Extracurricular activities were assessed using the Health and Behavior Questionnaire, and self-regulation was assessed using the Children's Behavior Questionnaire. While there initially was a significant correlation between extracurricular

The purpose of this study was to determine the relationship between extracurricular activities and self-regulation in 400 five year old twin children. Extracurricular activities were assessed using the Health and Behavior Questionnaire, and self-regulation was assessed using the Children's Behavior Questionnaire. While there initially was a significant correlation between extracurricular activities and self-regulation, that correlation became non-significant when controlling for SES and sex in a mixed model regression model. Nearly all of the children who did not participate in extracurricular activities came from lower SES families, leading to a lack of a "control group" for the high SES families. When only taking into account the lower SES half of the sample, the correlation between extracurricular activities and self-regulation became stronger and the correlation between SES and self-regulation became non-significant. Extracurricular activities do appear to promote self-regulation in children coming from low SES families, yet their effects on children coming from high SES families is still unknown.
ContributorsMcdonald, Lauren Nicole (Author) / Lemery-Chalfant, Kathryn (Thesis director) / Doane, Leah (Committee member) / Chemical Engineering Program (Contributor) / W. P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
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The purpose of our study was to evaluate whether viewing videos of dogs had an effect on the stress response of college students. While there is strong support in the literature for demonstrating the beneficial effect of human-canine interactions on human stress indicators, there is very little to no literature

The purpose of our study was to evaluate whether viewing videos of dogs had an effect on the stress response of college students. While there is strong support in the literature for demonstrating the beneficial effect of human-canine interactions on human stress indicators, there is very little to no literature on whether or not this phenomenon translates across a digital medium. We hypothesized that when exposed to a video of golden retriever puppies after a stress-inducing task, an individual would experience an increase in blood pressure recovery rate and a decline in perceived stress. In order to study this, we put together several surveys to test our participants' perceived stress, and we measured blood pressure several times in order to obtain a physiological measure of stress. Additionally, in order to produce a guaranteed stress response in our participants, we gave them 2 minutes to prepare a 4 minute video-recorded speech that they were not made aware of prior to entering the testing facility. After the speech task, the experimental group quietly viewed a pleasant 4 minute video containing imagery of dogs, while the control group sat silently for the same duration of time. During this time, the control group was asked to mentally review their performance and to focus intently on the feelings they experienced while giving their speech. Through these measures we found a significant recovery rate in systolic blood pressure and a trending difference between groups for the decline in negative affect. The data demonstrated that the experimental group had blood pressure levels that were significantly closer to their baseline levels when compared to the control group, whose blood pressure did not decline at the same rate. Additionally, the experimental group experienced a higher level of change in negative affect when asked to self-report their level of stress before the speech task and after the conditional recovery period. Interestingly, these findings can be applied to recent literature suggesting that systolic blood pressure is the most important factor of cardiac health to consider when assessing an individual for risk of heart disease or cardiac arrest. While the sample size of this study was small, the significant reduction in systolic blood pressure within the experimental group could indicate the possible efficacy of utilizing digital media containing imagery of canines as a form of therapy for systolically-hypertensive individuals as a means of managing their condition.
ContributorsDiModugno, Maria (Co-author) / Barbera, Joseph (Co-author) / Luecken, Linda (Thesis director) / Lemery-Chalfant, Kathryn (Committee member) / Department of Psychology (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
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While previous research has investigated the influence parenting styles have on child behavior, there has not been consistent findings on how child behavior in return influences parenting. This study goes beyond the literature by examining bidirectional influences of combined dyad for emotional availability and early problem behaviors (composited across 12

While previous research has investigated the influence parenting styles have on child behavior, there has not been consistent findings on how child behavior in return influences parenting. This study goes beyond the literature by examining bidirectional influences of combined dyad for emotional availability and early problem behaviors (composited across 12 and 30 months) predicting parental warmth, authoritarian parenting, internalizing, externalizing and ADHD symptoms at age eight. This study also examined whether genetic or environmental factors were driving these behaviors. Participants were from the ongoing Arizona Twin Project (N=340 twin children). 25% of the twins were monozygotic, 35% were same-sex dizygotic, and 35% were opposite-sex dizygotic twins. Preliminary correlations showed bidirectional effects between early emotional availability, problem behaviors and parental warmth, authoritarian parenting, internalizing, externalizing and ADHD symptoms at age eight; however, once twin dependence and covariates were controlled for, the bidirectional effects were no longer significant. One important finding emerged: early problem behaviors were predictive of later problem behaviors at eight years. The study also found that externalizing and ADHD symptoms were more heritable than emotional availability, early problem behaviors, and internalizing symptoms. Therefore, interventions should be developed addressing the environmental influences that contribute to early problem behaviors.
ContributorsKaur, Navneet (Author) / Lemery-Chalfant, Kathryn (Thesis director) / Miadich, Samantha (Committee member) / Davis, Mary (Committee member) / Sanford School of Social and Family Dynamics (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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Effortful control (EC), the regulatory component of temperament, has been found to predict various types of developmental outcomes (Eisenberg et al., 2016). Parenting behaviors have been found to predict and be predicted by children’s EC. However, existing findings on the magnitude and direction of the relations between parenting behaviors and

Effortful control (EC), the regulatory component of temperament, has been found to predict various types of developmental outcomes (Eisenberg et al., 2016). Parenting behaviors have been found to predict and be predicted by children’s EC. However, existing findings on the magnitude and direction of the relations between parenting behaviors and children’s EC are not conclusive. Thus, to help resolve replication crisis and obtain more comprehensive findings from both published and unpublished studies and from diverse populations, I conducted a meta-analysis of the existing literature focusing on the direction of effects and magnitude of the longitudinal relations between parenting behavior and children’s EC. In this work, two research questions were addressed: 1) What were the magnitudes of the prediction from parenting behaviors to later children’s EC, and of the prediction from children’s EC to later parenting behaviors? 2) If heterogeneity existed among relations between parenting behaviors and children’s EC, was the variance explained by a) publication status, and b) other moderators, such as sample characteristics, types of EC and parenting behaviors, and aspects of study design? Using 2506 effect sizes from 271 studies, I found significant small to moderate effect sizes for both the overall parent effect and the overall child effect. Further, heterogeneity existed among both the parent and the child effects. Moderators including child age, race and ethnicity, types of parenting behaviors, types of children's EC, method similarity of parenting versus EC, and consistency of informants were found to explain the heterogeneity of parent effects. Moderators including child age, child gender, family structure (i.e., whether the household has two parents), parent gender, types of parenting behaviors, the measurement of EC, method similarity of parenting versus EC, and consistency of informants were found to explain the heterogeneity of child effects. Based on results of the overall effects, tests of publication bias, and moderation analyses, I provided theoretical and methodological implications and related future directions. Strength, limitations, and implications for intervention studies or practices of the present review were also discussed.
ContributorsXu, Xiaoye (Author) / Spinrad, Tracy L (Thesis advisor) / Eisenberg, Nancy (Committee member) / Causadias, José M (Committee member) / Lemery-Chalfant, Kathryn (Committee member) / Arizona State University (Publisher)
Created2022
Description
The number of children currently experiencing a psychopathological disorder is growing quickly. It is essential to identify different causes of this to understand better how to prevent psychopathology in children. Prior research has shown that different emotion dynamics between the parent and child, like rigidity, flexibility, or synchrony, have been

The number of children currently experiencing a psychopathological disorder is growing quickly. It is essential to identify different causes of this to understand better how to prevent psychopathology in children. Prior research has shown that different emotion dynamics between the parent and child, like rigidity, flexibility, or synchrony, have been found to be associated with psychopathology. Synchrony or the matching of positive emotions in a dyad has been found to be protective against symptoms of psychopathology for children. In addition, flexibility, or the number of emotion transitions between a dyad, has also been shown to be protective against symptoms of psychopathology, although rigidity or fewer emotion transitions in a dyad has been predictive of psychopathology. However, this research has been almost entirely focused on infants and toddlers as well as adolescents, with little research being done on synchrony, rigidity, and flexibility in middle childhood. This study aimed to identify whether synchrony, rigidity, and flexibility are predictive or protective of internalizing, externalizing, and ADHD symptoms of psychopathology in middle childhood. Data was collected from a sample of 762 ethnically diverse children from the Arizona Twin Project that were assessed at ages 9 (Mage=9.71, SD=.93) and 11 (Mage=11.65, SD=1.04). Children and their parents were examined when the child was 9 during a video-recorded discussion task to determine rigidity, flexibility, and synchrony that was coded by iMotion Affectiva. Internalizing, externalizing, and ADHD symptoms of psychopathology were measured at ages 9 and 11 both through parent-report and child report. Results found that during a conflict-based discussion, synchrony and negative co-regulation between the parent and child were protective against internalizing, externalizing, and ADHD symptoms of psychopathology both concurrently and longitudinally. Rigidity and flexibility between the parent and child were not found to be associated with psychopathology. These findings can help inform future parenting programs or influence parent child interactions by teaching the importance of using positive emotions during negative conversations with parents.
ContributorsSather, Amanda (Author) / Lemery-Chalfant, Kathryn (Thesis director) / Doane, Leah (Committee member) / Benitez, Viridiana (Committee member) / Barrett, The Honors College (Contributor) / School of Politics and Global Studies (Contributor) / Department of Psychology (Contributor)
Created2022-12
Description

Background: Unintentional injury has been the leading cause of death for children and teenagers in the United States for the past 2 decades. Its health outcomes are often studied, but it may also relate to psychological concepts such as emotion dysregulation, which may also result in severe outcomes for individuals,

Background: Unintentional injury has been the leading cause of death for children and teenagers in the United States for the past 2 decades. Its health outcomes are often studied, but it may also relate to psychological concepts such as emotion dysregulation, which may also result in severe outcomes for individuals, families, and societies. There is no consensus on a conceptual definition of emotion dysregulation, and little prior literature on the specific relation between dysregulation and injury in the transition to adolescence. Methods: The current study aims to identify latent factors of emotion dysregulation using exploratory factor analyses. Subsequently, multilevel regressions illuminate relations between dysregulation and injury at 2 late childhood and early adolescence time points in a large ethnically, socioeconomically, and regionally representative sample of Arizona twins recruited from birth records and ongoing efforts. Results: 6 total factors representing emotion dysregulation at 2 ages were created. Factors were valid when tested against temperament and psychopathology constructs. No significant longitudinal or cross-sectional associations between emotion dysregulation factors and unintentional injury were found. Sex and rurality differences were found in factor scores and dysregulation outcomes. Discussion: The current study highlights new avenues of research and funding. Future research on this topic should reflect a concentrated and nuanced focus on injury. Concordant age 9 and age 11 factors loaded differently, which urges the field to strive toward developing a standardized definition for emotion dysregulation. Covariate differences highlight target populations for interventions in unintentional injury and emotion dysregulation, which remain independent areas of concern.

ContributorsHummel, Haley (Author) / Lemery-Chalfant, Kathryn (Thesis director) / Davis, Mary (Thesis director) / Doane, Leah (Committee member) / Meier, Madeline (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / School of International Letters and Cultures (Contributor) / School of Human Evolution & Social Change (Contributor)
Created2022-12
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Sleep and weight health during childhood can be the essential building blocks that influence later physical and psychological health. Researchers note how neighborhood effects on health may be mediated or moderated by parenting or family-related factors. This dissertation expanded on the efforts through an examination of contextual predictors of children’s

Sleep and weight health during childhood can be the essential building blocks that influence later physical and psychological health. Researchers note how neighborhood effects on health may be mediated or moderated by parenting or family-related factors. This dissertation expanded on the efforts through an examination of contextual predictors of children’s health using the Arizona Twin Project dataset (N = 933; 51.7% female; 56.5% White; 25.6% Latino). The family stress model (FSM), contextual relevance model (CRM), and the integrated model were used to test the relations between neighborhood and family factors on children sleep and weight health. Parent perceptions of neighborhood danger and childhood opportunities index were tested using multilevel- mediation, moderation, and moderated mediation models to address some of the limitations in previous reviews. The FSM was partially supported: parental stress and strain mediated the association between perceived neighborhood danger with sleep efficiency. However, the FSM was not fully supported as parental stress and disrupted parenting did not serially mediate the associations between neighborhood conditions and sleep efficiency. Moderation analyses revealed that negative parenting exacerbates associations between perceived neighborhood danger and sleep duration, demonstrating amplified disadvantages processes of the CRM. Negative parenting also moderated the associations between perceived neighborhood danger and sleep efficiency; the relationship was beyond what was noted in the CRM. Greater neighborhood opportunity was more strongly related to greater body fat percentage in families with higher positive parenting, as compared to families with lower positive parenting. Familism significantly moderated the association between neighborhood contexts and parental stress and strain within a subsample (Latino descent only). Last, the exploratory multilevel moderated mediation models suggested that most associations did not vary by the subgroups explored (i.e., positive parenting, familism cultural value). These results join a growing initiative to explore the science of ecological context, culture, and family interplay.
ContributorsPark, HyeJung (Author) / Doane, Leah D. (Thesis advisor) / White, Rebecca M.B. (Committee member) / Lemery-Chalfant, Kathryn (Committee member) / Su, Jinni (Committee member) / Arizona State University (Publisher)
Created2022
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Various physical and psychological forms of development take place during the transition from childhood to adolescence, including the onset of puberty, delayed sleep-wake behavior patterns, and increases in internalizing symptomatology. Theory suggests that pubertal processes influence the onset of internalizing symptoms, and this association may differ between boys and girls.

Various physical and psychological forms of development take place during the transition from childhood to adolescence, including the onset of puberty, delayed sleep-wake behavior patterns, and increases in internalizing symptomatology. Theory suggests that pubertal processes influence the onset of internalizing symptoms, and this association may differ between boys and girls. The contextual amplification hypothesis suggests that pubertal development interacts with contextual or dispositional factors to impact risk for psychopathology. Family stress and peer stress are two critical factors during early adolescence that have potential moderating effects on the association between pubertal development and internalizing symptoms. In line with the biopsychosocial framework, the current study examined various psychosocial (e.g., family stress, peer stress) and biological (e.g., sleep, genetics) factors that may have effects on the puberty-internalizing relation. Participants were a racially/ethnically and socioeconomically diverse sample of twins who were part of an ongoing longitudinal study (N=818 children; Arizona Twin Project; Lemery-Chalfant et al. 2019). The current study examined the association between puberty and internalizing symptoms, with stress (i.e., family, peer) as potential moderators, and sleep indicators (i.e., objective and self-reported sleep) as potential mediators. Behavior genetic analyses explored the moderated heritability of family stress on internalizing symptoms. Findings revealed that greater pubertal development predicted higher internalizing symptoms in boys, but not girls. For girls, peer stress interacted with pubertal development to predict internalizing symptoms, but simple slopes were not significant. Sleep indicators were not significant mediators between pubertal development and internalizing symptoms for boys or girls. Univariate twin models revealed environmental influences on internalizing symptoms, and both genetic and environmental influences on peer stress. Family stress did not significantly moderate the genetic and environmental influences of internalizing symptoms.
ContributorsLecarie, Emma (Author) / Doane, Leah D (Thesis advisor) / Lemery-Chalfant, Kathryn (Committee member) / Gewirtz, Abigail H (Committee member) / Grimm, Kevin J (Committee member) / Arizona State University (Publisher)
Created2024
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Background: Premature infants may be at risk for lower effortful control, and subsequent lower academic achievement, peer competence, and emotional and physical wellness throughout the lifespan. However, because prematurity is related to obstetrical and neonatal complications, it is unclear what may drive the effect. Effortful control also has a strong

Background: Premature infants may be at risk for lower effortful control, and subsequent lower academic achievement, peer competence, and emotional and physical wellness throughout the lifespan. However, because prematurity is related to obstetrical and neonatal complications, it is unclear what may drive the effect. Effortful control also has a strong heritable component; therefore, environmental factors during pregnancy and the neonatal period may interact with genetic factors to predict effortful control development. In this study, I aimed to dissect the influences of genetics, prematurity, and neonatal and obstetrical complications on the development of effortful control from 12 months to 10 years using a twin cohort. Methods: This study used data from the Arizona Twin Project, an ongoing longitudinal study of approximately 350 pairs of twins. Twins were primarily Hispanic/Latinx (23.8%-27.1%) and non-Hispanic/Latinx White (53.2%-57.8%), and families ranged in socioeconomic status with around one-third falling below or near the poverty line. Of the twins, 62.6% were born prematurely. Effortful control was assessed via parent report at six waves. Results: There was not a significant relationship between gestational age and effortful control regardless of whether obstetrical and neonatal complications were controlled for. Biometric twin modeling revealed that the attentional focusing subdomain of effortful control was highly heritable. Gestational age did not moderate genetic and environmental estimates. Conclusions: The findings help inform the risk assessment of prematurity and provide evidence for differing etiology of each subdomain of effortful control and the strong role of genetics in effortful control development.
ContributorsPickett, Janna (Author) / Lemery-Chalfant, Kathryn (Thesis advisor) / Su, Jinni (Committee member) / Eggum, Natalie D (Committee member) / Arizona State University (Publisher)
Created2023
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This dissertation combines three first-author manuscripts that focused broadly on the study of adolescent sleep within a family context (Sasser et al., 2021; Sasser & Oshri, 2023; Sasser et al., 2023). First, Chapter 1 introduces the theoretical background and empirical research that grounded the research questions and hypotheses explored across

This dissertation combines three first-author manuscripts that focused broadly on the study of adolescent sleep within a family context (Sasser et al., 2021; Sasser & Oshri, 2023; Sasser et al., 2023). First, Chapter 1 introduces the theoretical background and empirical research that grounded the research questions and hypotheses explored across the studies. The first study (Chapter 2) examined the influence of family connection on actigraphy-measured sleep among Latinx late adolescents and explored family dynamics and cultural values as potential moderators. The second study (Chapter 3) investigated daily and average concordance between parent and youth actigraphy-measured sleep and how this varied as a function of family context (e.g., parenting, family functioning). The third study (Chapter 4) examined concordance in actigraphy sleep among parent-youth and sibling dyads and explored how relations differed across zygosity type and sleeping arrangements. The dissertation concludes with an immersive discussion (Chapter 5) that summarizes the key differences, similarities, and takeaways across studies and highlights future directions and implications for developmental science, public policy, and clinical interventions. Collectively, this dissertation contributes to the understanding of youth and adolescent sleep within a family context by identifying proximal (e.g., daily interactions with parents/siblings) and broader family-level factors (e.g., dynamics, culture) that may help promote more healthful sleep among both adolescents and their family members.
ContributorsSasser, Jeri (Author) / Doane, Leah D (Thesis advisor) / Su, Jinni (Committee member) / Grimm, Kevin J (Committee member) / Lemery-Chalfant, Kathryn (Committee member) / Arizona State University (Publisher)
Created2023