Behavior problems are common during early childhood, and while many children will outgrow them, others will continue to have substantial difficulties. Unfortunately, too little is known about which children will exhibit continued difficulties, making it difficult to intervene before maladaptive behavior becomes entrenched. A number of parenting and parent characteristics, including ineffective discipline, maternal depression, parenting stress, and limited social support have consistently been found to be associated with externalizing problems in young children. While these variables are concurrently related to behavior problems, we know very little about whether or not they predict change in externalizing behaviors over time. The proposed research examined several parenting and parent predictors of changes in child behavior problems, including lax and overreactive discipline, single parent status, and parental depression. In addition, this study evaluated whether child gender and ethnicity moderated the relationships between these variables and changes in problem behavior. Single parenthood was the only significant predictor for the sample as a whole, while parent depression was a significant predictor for girls. Several significant ethnic differences emerged, highlighting the importance of considering cultural context in studies of parenting and externalizing behavior.

This study investigated associations among different parental psychopathology dimensions and child functioning. Mothers and fathers of preschoolers with behavior problems (n = 132) completed psychopathology questionnaires when children were 3 years old. Children’s externalizing, internalizing, and social problems, academic achievement, and cognitive ability were assessed at annual home visits from age 3 to 6. In general, maternal psychopathology symptoms were associated with mothers’ reports of externalizing, internalizing, and social problems at age 3 and 6. Additionally, paternal psychopathology symptoms were associated with fathers’ reports of externalizing and internalizing problems at age 3 and 6. Mothers with more elevated psychopathology symptom dimensions had children with more mother-reported and father- reported externalizing and internalizing problems, and lower social competence at age 3 and age 6. Fathers with more elevated psychopathology symptom dimensions had children with more mother-reported internalizing problems at age 3 and 6. Only a few parental psychopathology dimensions (maternal ADHD and Cluster A symptoms, and paternal ADHD, depression, and antisocial symptoms) emerged as unique predictors of child functioning at age 3 and 6. These findings suggest that most types of mothers’ and fathers’ psychopathology may play a role in the behavioral, social, and emotional outcome of preschoolers with behavior problems.

Externalizing behavior problems in children reflect negative actions toward the external environment and can have detrimental consequences for their academic, social, and mental well-being. These actions range from breaking the rules to exhibiting extremely disruptive and aggressive behaviors, and they frequently come with issues with social behavior and emotional control. Socioemotional competencies, such as empathy and emotion regulation, serve as protective factors against behavior problems, enabling children to effectively manage their emotions and behaviors. This study focuses on examining the effectiveness of child-centered play therapy (CCPT) in reducing externalizing problems and enhancing socioemotional competencies in children aged 3 to 12. CCPT utilizes play as a natural language to establish a therapeutic relationship between play therapists and children. This relationship provides a safe and accepting environment for children to express themselves and develop self-regulation skills. By accepting responsibility for their actions, children can progress toward self-actualization and improved behavior management. To investigate the effectiveness of CCPT in reducing externalizing behavior problems and increasing socioemotional competencies in children, a systematic literature review was conducted, considering studies published over the last decade. Four databases were analyzed, and six articles met the predetermined inclusion criteria. While the data extracted from the included articles demonstrated promising results regarding the effectiveness of CCPT in reducing externalizing problems, the impact of CCPT on enhancing socioemotional competencies was not clear. It is important to acknowledge the limitations of this study, including the scarcity of research in this field and small sample sizes, which impede the generalization of the results to all populations. However, this study identified a research gap concerning the effectiveness of child-centered play therapy in addressing externalizing problems and children's social and emotional functioning. Future research is required to have a more comprehensive picture of how CCPT reduces externalizing problems and what abilities it gives children to cope with their problems; otherwise, it is not possible to consider CCPT as an evidence-based intervention for externalizing problems and widely use it for all children based on current data in the literature.

Persons with traumatic brain injuries (TBI) who have engaged in problematic or illegal sexual behavior present with complex assessment and intervention needs yet remain understudied within the empirical literature. In the current exploratory analysis, important differences in adaptive and clinical functioning, adverse childhood experiences, and criminal offense history are examined in 25 persons with previous brain injury, 118 persons with intellectual disability but no known TBI, and 103 persons with no history of brain injury or intellectual disability, all of whom have engaged in problematic sexual behavior and who were residing in secure forensic inpatient care. Group differences were examined using comparisons of means and chi-squares. Results highlight important differences in education and employment experiences, diagnostic presentation, exposure to childhood maltreatment, and justice system involvement and characteristics of their sexual offense victims. Associations with prior literature and future research directions are discussed.

A majority of research investigating aggression and its development in children has relied upon the use of rating scales such as the Child Behavior Checklist (CBCL). These scales are typically developed using a conventional factor analytic approach for the selection and retention of scale items, but may not contain sufficient numbers of items to adequately assess the unidimensional construct or developmental trajectory of aggressive behavior in youths. The present study evaluates specific psychometric properties of CBCL Aggressive and Delinquency Problems clinical syndrome scale items to determine the degree to which they reflect the breadth and established developmental trajectory of aggressive behavior in youth.

Children with disabilities are at high risk for several forms of maltreatment, including abuse and neglect (Ammerman, Hersen, Van Hasselt, Lubetsky, & Sieck, 1994; Sullivan & Knutson, 1998b), and children with hearing and communication disorders comprise a substantial portion of children at risk (e.g., Sullivan & Knutson, 2000). For example, some literature investigating the parenting practices of parents raising children and adolescents with hearing and communication disorders suggests that these parents have a tendency to use physically harsh discipline practices (Knutson, Johnson, & Sullivan, 2004; Sullivan & Knutson, 1998b). Further, high prevalence rates of emotional and behavioral problems are documented in these youth (e.g., Greenberg & Kusche, 1989; Hindley, 1997; Prizant, Audet, Burke, & Hummel, 1990). Despite these findings, a limited amount of research focuses on understanding factors related to these undesired outcomes. Therefore, this study investigates the relationships among dimensions of parents' psychological functioning and parent-child interactive processes in a culturally diverse, national sample of families raising children and adolescents with hearing and communication disorders. Results suggest that parents' stress, depression, and anxiety as well as parent-child communication and involvement are important correlates of discipline practices and subsequent child behavior in families raising children and adolescents with hearing and communication disorders. Additionally, psychological aggression and parents' depression are highly predictive factors in the use of corporal punishment. Also, psychological aggression and parenting stress are highly predictive of reported youth behavior problems. The information gained from this investigation may provide direction for assessment and therapeutic intervention with parents of children and adolescents who have hearing and communication disorders.

Executive functioning (EF) facilitates a wide range of purposeful actions and plays a significant role in adaptive functioning. Despite considerable variability in EF, little is known about the factors underlying individual differences in EF in early childhood. The aims of the present research were to explore the genetic and environmental influences on individual differences in EF and the factors underlying the relations between EF and developmentally-significant outcomes. The sample comprised 209 4-year-old twin pairs (79 monozygotic, 130 dizygotic). EF was assessed with the NIH Toolbox: Early Childhood Cognitive Battery, a computerized battery of multidimensional measures. Both observers and parents provided ratings of temperament and parents evaluated behavior problems. School readiness was assessed with a standardized test of basic skills. Model-fitting procedures revealed that variability in set-shifting and inhibitory control could be attributed to both genetic (i.e., 36% and 46%, respectively) and nonshared environmental (i.e., 64% and 54%, respectively) influences. A moderate phenotypic association (r=.30) was found between set-shifting and inhibitory control. Multivariate behavioral genetic models revealed that approximately 85% of the genetic effects on inhibitory control covaried with set-shifting. Set-shifting and inhibitory control were associated with observer-rated task orientation (rs= .29 and .26, respectively) and school readiness (rs= .33 and .34, respectively). Both task orientation and school readiness were heritable (h2= 28% and 82%, respectively) and the correlations between both set-shifting and inhibitory control and these outcomes were due to common genetic influences. Parent-rated temperament was not associated with EF, but a related construct, effortful control, was inversely related to hyperactivity and externalizing behavior problems (rs= -.46 and -.41, respectively). Genetic and environmental factors underlie these associations. These findings indicate that both facets of EF share common genetic underpinnings and that these effects also underlie their associations with developmental outcomes. The present study contributes novel information about the etiology of early EF, with implications for cognitive, socio-emotional, and behavioral development, and ultimately, prevention and intervention efforts.

The intent of this thesis is to explore the mediating effects of ADHD Inattentive symptoms on domestic parent-child interaction problems and working memory. Inattentive symptoms in children with ADHD are known to cause forgetfulness, slow processing speed, and negative parent-child interactions. Working memory deficits in phonological short term memory and the central executive are also well-established in children with ADHD. However, it is currently unknown to what extent inattentive symptoms are responsible for home behavior problems in conjunction with phonological working memory deficits. The aims are tested using two validated, common clinical questionnaires: The Teacher Report Form and the Home Situations Questionnaire. Additionally, working memory and executive function are tested using a phonological letter-number sequencing task and a visuospatial dot-in-the-box task. Results show that inattentive symptoms mediate the relationship between working memory and parent-child interaction problems. Teacher reports of inattention affect the degree to which the child experiences behavior problems at home, and also affects the phonological working memory system implicated in this behavior. Future directions include using a more diverse sample, investigating a wider range of ADHD symptoms, investigating effects across multiple settings, and exploring possibilities of additional executive functioning mediators.

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