The present study is a preliminary investigation assessing the associations between socioemotional adjustment and executive functioning problems in a low-income, high-risk sample of elementary students who participated in a mindful yoga practice. Mindfulness is a concept that encompasses attention within the present moment and requires acceptance and nonjudgment. Rather than being an outcome-reliant principle, it emphasizes the individual’s present state of mind and being (Kabat-Zinn, 2003). Recently, mindfulness has become a popular phenomenon in research. It has shown to be a highly effective coping strategy and mediator for cognitive, emotional, and behavioral problems (Flook, 2010; Hayes & Feldman, 2004; Broderick & Metz, 2009; Mendelson et al., 2010). However, little research has been done to assess the role mindfulness plays in children. The objective for this study was to investigate the associations between contextual stress, mindfulness, executive functioning difficulties, emotion dysregulation, and aggression. Data for these variables was reported via self-report (n=21), parent-report, and teacher-report at one time towards the end of the yoga curriculum. Mindfulness was not associated with executive functioning or emotional dysregulation. However, parent and teacher reports did reveal significant links among more aggression, executive functioning difficulties, and emotion dysregulation. Discussion notes the limitations of the current study and recommendations for improving the study design to improve the study of positive interventions for children experiencing high-stress lifestyles.

In the last few decades, a growing literature has examined how biodiversity influences ecosystem functioning. This body of work has greatly improved our understanding of ecosystem functioning and its modulation by biodiversity. In particular, there is nowadays large consensus that biodiversity increases ecosystem productivity, and stabilises ecosystems. Early investigations were largely theoretical or involved simple experiments run in laboratory conditions, but over time biodiversity ecosystem-functioning experiments evolved to more realistic field experiments that better represent the real conditions found in natural ecosystems. In particular, these experiments are often run on larger spatial scales and over longer time frames allowing for the effect of environmental heterogeneity and temporal fluctuations to be explored. The designs of these experiments evolved along with the questions addressed in this field of research. However, the analytical tools used in the analyses of these experiments followed a slightly different path. In particular, most of the metrics currently used to analyse biodiversity ecosystem functioning experiments are not entirely suited to properly deal with the complexity of modern designs as they make a number of assumptions that are not met any more. In my thesis I developed a unified framework, based on the tailored use of Linear Mixed Effects Models, to analyse biodiversity-ecosystem functioning experiments such that the new complexities of these experiments can be taken into account. This thesis aimed to bring the focus of the analysis back to the biological interpretation of the results. I successfully applied my approach to several data sets. The framework developed here is expected to improve greatly our understanding of ecosystem functioning and how biodiversity modulates it. It also sheds new light on past research in this field. The great flexibility of the new approach makes it possible to let these experiments to evolve such that new biological questions can be addressed.

In response to the increased emphasis in early intervention on assessing family functioning, there has been substantial effort over the past 15 years to develop instruments that can measure important aspects of family functioning with families of children with disabilities. While the multitude of recently developed family measures has given researchers and clinicians a variety of instruments from which to choose, research on the quality of the data derived from these instruments has lagged behind. Considering the importance of family functioning in current early intervention programs and the potential impact on the type of intervention delivered, further investigation of the psychometric properties of widely used measures of family functioning seems essential. The specific purpose of this research was to conduct a full psychometric assessment of five of the most widely used measures of family functioning for families with children with disabilities. The conclusions that can be drawn from this research are as follows: Each of these measures was strengthened by new scoring strategies, showed high reliability, demonstrated strong construct and current validity, and, individually, did not relate strongly to child development. However, when taken as a whole, these measures were very useful for family assessment in early intervention research and early intervention service provision.

This thesis investigated the relative importance of six emotional intelligence (EI) abilities comprising the Swinburne University Emotional Intelligence Test (SUEIT) in the prediction of (1) psychological resilience to negative life events, (2) romantic relationship adjustment and communication behaviour, and (3) employability skills. In Study 1, the strength of relationship between negative life events and distress varied across three latent classes, reflecting vulnerable, average, and resilient profiles. Graduated EI scores, in terms of emotional self-awareness, ability to express, and self-manage emotions, predicted membership to each class. Across the 414 survey respondents, these three EI abilities appeared to augment psychological resilience in the aftermath of negative life events. In Study 2, all six EI abilities were found to be weakly associated with dyadic adjustment, and moderately associated with eight relationship enhancing communication behaviours. The eight behaviours were themselves moderately to very strongly associated with adjustment. Mediation analyses revealed that each EI ability influenced dyadic adjustment through the communication behaviours it best predicted. Across the 116 romantic partners surveyed, those better able to express and self-manage emotion communicated in the most relationship enhancing ways. In Study 3, four of the six EI abilities were found to be differentially important in the prediction of seven Adaptive Performance dimensions, five Conflict Management strategies, three forms of Organizational Commitment, and seven Achievement Motivations. The abilities to think clearly under pressure, identify others' emotions, self-manage emotions, and manage others' emotions made valuable contributions, while emotional self-awareness, and the ability to express emotion, did not. Across the 105 workers surveyed, those with these four EI abilities appeared to have decidedly stronger employability skills, skills that distinguish between more and less successful workers of similar education and vocational experience, across all job families. These findings are largely consistent with EI theory, and with the small body of research to have examined similar effects in similar domains. Importantly however, the current findings offer much more specific insights into the relative importance of each EI ability in each context, and thus, the means by which emotional intelligence contributes to a psychologically healthy, intimately connected, and vocationally valuable life.

This study examined the influence of contextual risk factors and parental depression on the social-emotional functioning of very young children. Ninety-four young children were recruited as part of a larger ongoing research project recruiting caregivers and children from Early Head Start programs in South Florida. Children ranged in age from 12 to 36 months and included 65 girls and 29 boys. There were 94 caregivers in the current study: 91 mothers, 2 fathers, and 1 foster mother. Caregivers were diverse in terms of age, ranging from 19 to 42 years of age (M = 27.31, SD = 5.75), ethnicity (84% African- or Caribbean-American, 14.9% Hispanic/Latino, and 1.1% Mixed/Other), and in number of years of school completed, ranging from 1 to 16 years (M = 12.02, SD = 1.91). The current study employed a cumulative risk factor perspective in examining the social-emotional functioning of infants and toddlers. Specifically, the current study tested both a threshold model and a linear model of cumulative risk. Study measures included a background questionnaire, a measure of parental depression, a measure of parenting stress, a measure of child exposure to violence, and a measure of traumatic life events in a child?s life. Further analyses examined ethnicity as a moderator of the relationship between cumulative risk and difficulties with social-emotional functioning. Results showed a significant linear relationship between cumulative risk and social-emotional functioning. However, ethnicity did not moderate this relationship. When individual risk factors were examined post hoc, parental depression, stressful parent-child interactions, having a child with special needs, and community violence were shown to significantly predict difficulties with social-emotional functioning among very young children. These data have important implications for prevention and intervention efforts.

There is a robust body of research regarding outcomes following pediatric acquired brain injury (ABI). However, these studies generally explore medium-term outcomes (i.e., 3 to 12-months postinjury), whereas functioning during acute stages following ABI is poorly understood. In particular, there is limited knowledge regarding caregiver functioning during a child’s hospitalization immediately after ABI. This study sought to identify and model caregiver and child predictors of ‘caregiver confidence’ in caring for their hospitalized child. Caregivers of 45 children with diverse types of new-onset acquired brain injuries completed self-report measures of their own psychological functioning, stress, and confidence levels, as well as their perceptions of their child’s stress and coping. Results showed that caregiver psychological functioning was negatively associated with caregiver confidence, and caregiver perceptions of child coping were positively associated with caregiver confidence. Child functional status did not serve as a significant mediator in this relationship as per the hypothesized model.

Although HIV/AIDS is the 9th leading cause of death in African-American children, 80% of HIV-infected children in the U.S. live into school-age years. This study focuses on associations between HIV illness severity, family factors, and long-term cognitive functioning of these children. Participants included 42 perinatally HIV-infected children (mean age = 72.4 months), 93% of whom were African-American. Mean intellectual functioning was more than one standard deviation below the normative mean; whereas, overall language and attention functioning were generally not different from the normative sample. First, this study described changes in functioning over time and/or between genders. Analyses of variance were conducted for five outcome variables (i.e., full scale IQ, verbal IQ, performance IQ, expressive and receptive one word picture vocabulary test). Expressive language scores increased over time. For receptive language, males’ skills improved significantly over time, while the decline in females’ skills did not reach significance. Second, the associations between Time Two illness severity (i.e., viral load), and Time One familial variables (i.e., adult-to-child ratio in the home, number of caregivers lost to death, number of months since caregiver death), with outcome variables at Time Two (i.e., intellectual, language, and attentional/hyperactivity functioning) were examined. For intellectual and expressive language, only the respective Time One functioning independently contributed a significant amount to Time Two functioning. For receptive language, Time One receptive language and the adult-to-child ratio in the home significantly predicted Time Two functioning. As the number of adults per child increased, there was an improvement in receptive language functioning. For both measures of language, the interaction between Time Two illness severity and Time One months since caregiver death significantly predicted Time Two functioning. With no loss of caregiver, more ill children demonstrated better language abilities than less ill children. Across illness groups, children performed similarly after a recent caregiver death. With greater time since caregiver death, the less ill children performed better than their more ill peers. For attention/hyperactivity, no predictor variables were significant. Interventions that consider family factors, as well as medical information, as potential influences on future child functioning may aid in the battle against this chronic illness.

In this study I first examined whether the cognitive processes (hot versus cold cognition) underlying judgments to traditional moral situations are universal to situations that are morally neutral, and whether individual differences in cognitive ability moderate these judgments. Second, I tested whether it was possible to modify the impact of hot versus cold processing systems on judgment deliberation by shifting the focus of attention during the decision-making process. I conclude that moral judgment is not simply the product of cognitive ability and is not sufficiently motivated by hot cognitive experiences alone. The role of cognitive abilities on moral valuation requires further examination.

Recent conceptualizations of procrastination suggest that procrastination is akin to self-regulatory failure wherein the effect of good intentions is attenuated for individuals who tend to procrastinate. Some researchers speculate that this effect is due to subtle neurological deficits that make it more difficult for procrastinators to follow through with completing tasks. The present work examines this claim while also investigating two factors that should theoretically weaken the effect of intentions for engaging unpleasant, but important, tasks – namely habitual avoidance and the executive function of inhibition. Study 1 investigated the question of whether chronic avoidance patterns may become so entrenched that they take on the qualities of a habit. This is important because habits are known to be less reliant on intentions because they are triggered in a relatively automatic fashion. Habit indices were created which assessed the degree to which the experience of avoiding particular tasks was automatic and self-descriptive in nature (Verplanken & Orbell, 2003). The results confirmed the expectation that more frequent avoidance patterns are experienced as occurring relatively automatically. Habit-like avoidance can be measured reliably and is related to other constructs in expected ways. For example, habit-level predicts reduced task quality and lower rates of task completion above-and-beyond motivational variables (e.g. intentions). Finally, habit-like avoidance patterns were more often associated with stable features identified by participants as being present in the environment. Using a prospective design, Study 2 assessed the degree to which existing habitual-avoidance patterns weakened the effect of good intentions to carry out unpleasant tasks over the course of a week. Several computer tasks at Time 1 were also used to assess inhibitory control or the degree to which participants could inhibit prepotent responses. In addition to personality traits which purportedly moderate the intention-behaviour relation (e.g. trait procrastination), the moderating effects of habitual avoidance and inhibitory control were also tested. Trait-level procrastination did not weaken the effect of one’s intentions to carry out unpleasant tasks. However, habitual avoidance and inhibitory control jointly moderated the effect of intentions on behaviour such that poor inhibitors had difficulty overcoming previous avoidance habits in order to complete unpleasant tasks during the week. In contrast, good inhibitors were able to behave according to their intentions irrespective of habit-like avoidance patterns. These findings point to the importance of recognizing the joint influence of avoidance patterns and regulatory capacities involved in self-control when understanding procrastination behaviour.

The purpose of this study was to examine the relationship between family functioning, health-related quality of life, and metabolic control in order to identify areas for intervention that can improve medical and psychosocial outcomes for children and adolescents with type 1 diabetes. Children (N = 45) ages 8-17, both male and female, with type 1 diabetes, along with one caregiver (parent or legal guardian) (N = 45) were asked to complete the Pediatric Quality of Life Inventory (PedsQL) generic and diabetes-specific form to assess health-related quality of life along with the Diabetes Family Behavior Checklist and the Family Relationship Index of the Family Environment Scale to assess family functioning. Recent Hemoglobin A1c (A1c) was obtained from the physician at their visit or by parent report to assess metabolic control. Results indicated a significant relationship with poorer metabolic control relating to poorer physical health-related quality of life, as reported by children. All reports indicated a significant correlation between metabolic control and both general and diabetes specific health-related quality of life. There was a significant relationship with mother’s educational level on the outcome variables; educational level was therefore used as a control variable in all regression analyses. Child-reported general family functioning accounted for a significant amount of variance in child reported general health-related quality of life. Parent score on the non-supportive scale for diabetes specific family functioning accounted for a significant amount of variance in parent reported general health-related quality of life and diabetes specific health-related quality of life for their child. Results demonstrated the importance of obtaining both child and parent perspectives on issues regarding general family functioning and health-related quality of life and diabetes specific family functioning and health-related quality of life. In addition, they illustrated the importance of assessing health-related quality of life for children with diabetes as opposed to merely looking at the physical effects.