A cornerstone of children’s socio-cognitive development is understanding that others can have knowledge, thoughts, and perceptions that differ from one’s own. Preschool-aged children often have difficulty with this kind of social understanding, i.e., they lack an explicit theory of mind. The goal of this dissertation was to examine the role mental state language as a developmental mechanism of children’s early understanding of their own mental states (i.e., their introspective ability). Specifically, it was hypothesized that (1) parents’ ability to recognize and appropriately label their children’s mental states and (2) children’s linguistic ability to distinguish between their mental states shapes the development of children’s introspective ability. An initial prediction of the first hypothesis is that parents should recognized differences in the development of children’s self- and other-understanding in order to better help their children’s introspective development. In support of this prediction, parents (N = 400, Mage = 58 months, Range = 28-93 months) reported that children’s understanding of their own knowledge was greater than children’s understanding of others’ knowledge. A prediction of the second hypothesis is that children’s linguistic ability to distinguish between and appropriately label their own mental states should determine their ability to make fined grained judgments of mental states like certainty. In support of this prediction, children’s (N = 197, Mage = 56 months, Range = 36-82 months) ability to distinguish between their own knowledge and ignorance states was associated children’s ability to engage in uncertainty monitoring. Together, these findings provide support for the association between children’s linguistic environment and ability and their introspective development.

The goal of this study is to contribute to the understanding of Mexican-American three- to five-year-old children’s effortful control (EC) and negative emotionality (NE) development by examining whether Mexican-American adolescent mothers’ parenting transacts with their three- to five-year-old children’s EC and NE and by exploring whether mothers’ familism acts as a protective factor. I hypothesized that mothers’ harshness and warmth would transact with EC and NE over time. I further hypothesized that mothers’ familism values would (a) positively predict mothers’ warmth and negatively predict mothers’ harshness, and (b) act as a buffer between low EC and high NE, and high harshness and low warmth. These hypotheses were tested within a sample of Mexican-American adolescent mother-child dyads (N = 204) and assessed longitudinally when children were 36, 48, and 60 months. Mothers were predominantly first generation (i.e., mothers’ parents were born in Mexico; 67%) and spoke English (65%). When children were 36 months, average family income (i.e., wages, public assistance, food stamps) was $24,715 (SD = $19,545) and mothers had started community college (13%) or completed high school/GED (30%), 11th grade (19%), 10th grade (8%), or less than 9th grade (14%). In this sample, transactions between harshness or warmth and EC or NE were not found, but a bidirectional association between NE and harshness was found. Familism marginally negatively predicted harshness, but not warmth. Familism moderated the relation between NE and harshness such that there was only a negative relation between NE and harshness when familism was high. However, familism did not moderate the relations between NE and warmth, or EC and harshness or warmth. The results of this study are discussed with respect to (a) current methodological limitations in the field, such as the need to test or develop parent-report measures of Mexican-American children’s temperament and value-driven socialization goals, (b) future avenues for research, such as person-centered studies of clusters of mothers’ values and how those relate to clusters of parenting behaviors, and (c) implications for interventions addressing parenting behavior of adolescent mothers.

The theory of biological sensitivity to context (BSC; Boyce & Ellis, 2005) posits that specific biological characteristics, such as vagal tone, may confer risk for physical and mental health outcomes for some children but promote health for others. High levels of resting respiratory sinus arrhythmia (RSA), an index of vagal tone, may confer susceptibility to the effects of the caregiving environment on child development. Consistent with BSC, I expected that, relative to infants with lower RSA, infants with higher RSA would demonstrate fewer behavior problems if their mothers reported fewer postpartum depressive symptoms, but more behavior problems if their mothers reported more postpartum depressive symptoms. I also evaluated whether observed child social engagement with their mothers mediated children's biological sensitivity to the effects of postpartum depressive symptoms on behavior problems in early childhood. I evaluated a mediated moderation model among a sample of 322 low-income Mexican American mother-infant dyads. As expected, the RSA x maternal depressive symptoms interaction, controlling for covariates, was a significant predictor of internalizing, externalizing and total behavior problems, and high vagal tone conferred susceptibility for externalizing behavior problems. Contrary to my hypothesis, children with low RSA may be more susceptible to the effects of maternal postpartum depressive symptoms on children's internalizing and total behavior problems, and child social engagement did not account for these effects. Among infants in economically disadvantaged families, lower RSA and fewer maternal depressive symptoms may promote resilience, and more research is needed to understand behavioral mediators of biological sensitivity.

Researchers suggests that college students' involvement and use of resources on campus are important for success, in the form of satisfaction and GPA, in the first year. College officials invest substantial resources in activities to encourage freshmen students to become involved in campus activities and utilize resources that promote successful outcomes, yet we do not know which activities best relate to success. Using a self-report survey, we sought to corroborate previous research that has shown that overall levels of involvement and use of resources relate to satisfaction/GPA. Furthermore, we disentangled which individual types of involvement and use of resources are most highly correlated with satisfaction and GPA. And finally, we identified the barriers and benefits to involvement and resource use, according to the students themselves. We found evidence that higher levels of involvement were related to satisfaction and attending faculty office hours appears to be particularly important, given a significant relation to both satisfaction and GPA. Implications for program promotion and resource allocation are discussed.

Using interpretative phenomenological analysis (IPA), a qualitative research method, combined with quantitative data, this study was designed to examine what it means to be an adolescent living with muscular dystrophy, a life-limiting disease. A sample of twelve adolescents with Duchenne (eight), limb-girdle (two), and friedreich's ataxia (two) as subsets of muscular dystrophy were interviewed one-on-one, as were their parent or adult guardian. Interviews consisted of 16 opened-ended questions for adolescents, and 17 open-ended questions for parents or guardians. Participants also completed a pre-interview online survey consisting of 38 closed-ended questions using a Likert-type scale to gather demographic and treatment information. The focus of these interviews included peer relationships, self-concepts, and family dynamics in the lives of adolescents with muscular dystrophy. Each of these categories was examined in relation to participants' processes of making meaning of their experiences. It was discovered that parent and child attitudes towards disability run parallel, whether that be positive, negative, or neutral in regards to quality of life with a disability. It was also determined that at least one parent must be a stay-at-home job or be able to work from home in order to be the caliber of caregiver required for their child. Adolescents in this study all had a strong support system in place, with the predominant support system being their family. Self-reports on whether or not adolescents worried about how their muscular dystrophy affected their families were split. Families planned activities within their family unit by utilizing a complete activity inclusion approach, separate opportunities for siblings approach, or activity elimination approach. Regardless of level of family support, it was found that the majority of adolescents in this sample try not to think about muscular dystrophy, or have neutral feelings towards these thoughts. They also thought that people who do not have muscular dystrophy do not know what it is like to live with this disease, and felt neutrally towards the way that they look. Medically speaking, the majority of adolescents reported feeling neutral towards the support that they receive from their medical providers, and that their providers do not talk directly to them but rather to the rest of their family or caregiver instead. These adolescents could not manage their own medical needs and their medical appointments were made by a parent or other type of caregiver. A strong misperception that a physical disability also signals the presence of an intellectual disability when at school was evident. Adolescents were also quick to point out the social stigma that comes with having the assistance of an aid at school with able-bodied peers. However, a small few, particularly those younger in age, reported a lack of peer stigma, and even the social benefit of having an adult friend at school. While the Muscular Dystrophy Association is trusted in coordinating patient care, their treatment advisements are perceived to be outdated, and Goodwill Ambassador program considered manipulative by patients. Application to the Muscular Dystrophy Association (MDA) Transitions Program are named so that the organization formerly relied upon most to serve these families and who has a program designed to serve this exact population can benefit from them. With zero families interviewed having heard of or utilized this program, a clear change in their programs and practices need to take place. The information gathered from this study provides insight for developing and to guide new programs to assist this population in making the difference the MDA Transitions Program aims to do.

Early academic adjustment has been found to be predictive of later academic success. This study sought to determine how child emotionality at school, specifically positive and negative emotions, as well as the quality of the school, might affect child's academic achievement. Further, the possibility that emotionality and school quality interact was tested. Two hundred and twenty eight second grade children's expressions of positive and negative emotions were observed in the school setting. Teachers also submitted questionnaires on the children's positive emotionality. Academic adjustment was measured by standardized tests and teacher reports. School quality scores were based on multiple indicators obtained from online public information data. Regression analyses and multi-level modeling (when necessary) were used to predict academic performance from children's emotions, school quality, and their interaction. Results demonstrated that school quality was at least marginally positively related to all aspects of children's academic competence. Further, teacher-reported positive emotion positively predicted all scores of academic competence, and teacher-reported dispositional positive emotion positively predicted Woodcock Johnson III applied problems subtest scores. Further, interaction effects showed that teacher-reported positive emotion and school quality significantly predicted teacher-reported academic competence and Woodcock Johnson III applied problems subtest scores. Using both statistical strategies (MLM & regressions), observer-reported positive emotion and school quality marginally significantly predicted Woodcock Jonson III applied problems subtest scores. The results indicate that children's emotional behaviors at school, as well as school quality, play a role in the development of children's academic achievement.

The Community Action Research Experiences (CARE) Program collaborated with the WellCare Foundation (WCF) to assess the referral sources of the clinic in order to more effectively reach additional potential patients. Archival data were analyzed from a 19-month period from the medical records of patients. Also, data were collected from interviews with the case manager of agencies that were a known referral source of WCF. These case manager interviews were completed over a one-month period. For the archival data part of the project, data were collected from 117 patients. Four representatives from community agencies participated in phone interviews. The results indicated that the most common referral sources were word of mouth, followed by community agency referrals. The results also indicated that WCF appears to have served a unique niche that is not served by other non-profit health clinics. These results led to implications for action and direction for future applied research.

This longitudinal study examines the relations of anger, gender, and intrusive maternal parenting to empathy in toddlers. Participants (247 toddlers at the initial assessment) were assessed in a laboratory at approximately 18 (T1, N = 247), 30 (T2, N = 216), and 42 (T3, N = 192) months of age. Toddlers' observed anger was measured during a toy removal task and maternal intrusiveness was observed during free play between mother and toddler. Reported empathy was measured using questionnaires completed by mothers and fathers. At 18 months, a positive relation between observed anger and reported empathy was found for boys, but not for girls. At 30 months, maternal intrusiveness positively predicted empathy in boys, but it negatively predicted empathy in girls. These findings provide insight about sex differences in the development of empathy and concern for others in early childhood.

The predictors of school engagement in early childhood were examined, and mechanisms to improve classroom engagement levels were proposed for interventionists to consider. Literature was reviewed on the relations of child characteristics (i.e. effortful control, negative emotionality) and environmental characteristics (i.e. teacher-child relationship quality, classroom environment) to children's school engagement. Finally, a logic model was developed to guide future intervention work.

Child life specialists work in a health care setting work alongside patients and families to provide coping strategies, preparation, education, and comfort to promote well-being and reduce fear and anxiety in the health care environment. They also serve as advocates for children's developmental needs, specifically in terms of their reactions to stress, and support the active involvement of families in the child's care. In this work, development of fear, coping, and medical preparation are reviewed. In order to further the mission of family-centered care, all types of patient populations must be studied. This reviews children with Autism Spectrum Disorder in order to explore their needs and how they best interpret information. With this in mind, a proposed tool, video modeling is introduced as a way to prepare children, increase their coping skills, and reduce fear and anxiety related to the medical environment.