The second year of life is a time of formative developmental change as basic behavioral systems undergo rapid integration and expansion. This study examined the developmental trajectories of social-emotional (SoE) outcomes and the effects of infant sex and household chaos (HC) on the development of SoE outcomes across the second year of life. The…

The present study examined bidirectional effects between maternal and paternal parenting styles (authoritative, authoritarian, permissive) and infant temperament (negative affect, orienting/regulatory capacity, surgency) in a diverse sample of 201 mothers and 151 fathers. Using 3 waves of longitudinal data (prenatal, 6 months, and 18 months), this…

Anger is a central characteristic of negative affect and is relatively stable from infancy onward. Absolute levels of anger typically peak in early childhood and diminish as children become socialized and better able to regulate emotions. From infancy to school age, however, there are also individual differences in rank-order levels of anger. For…

Parental mentalization refers to parents' capacity to treat their children as having minds of their own and consider the mental states underlying their behaviors. This study examined the roles of mothers' executive functions (EFs), a group of processes supporting self-regulation, in 2 aspects of parental mentalization--spontaneity as measured by…

Developmental scholars, parents, and policymakers alike have long heralded the opening years of life as disproportionately influential. Recent work on adolescence has revealed, however, greater influence of these later years--but without considering how experience during these two periods interact. We address this issue by studying adverse…

Postnatal maternal depression is associated with poorer child emotional and behavioral functioning, but it is unclear whether this occurs following brief episodes or only with persistent depression. Little research has examined the relation between postnatal anxiety and child outcomes. The present study examined the role of postnatal major…

The studies reported here aimed to test the proposal that mind-mindedness is a quality of personal relationships by assessing mind-mindedness in caregiver-child dyads in which the relationship has not spanned the child's life or in which the relationship has been judged dysfunctional. Studies 1 and 2 investigated differences in mind-mindedness…

In the present investigation, we studied the development of 6 physically aggressive behaviors in infancy and toddlerhood, posing 3 questions (a) How do the prevalences of individual physically aggressive behaviors change from 8, 15, and 24 months? (b) Are there groups of children who show distinctive patterns in the way individual physically…

We evaluated the extent to which the externalizing behavior construct is self-organizing in the first 2 years of life. Based on dynamic systems theory, we hypothesized that changes in physical aggression, defiance, activity level, and distress to limitations would each be predicted by earlier manifestations of one another. These hypotheses were…

Using both traditional composites and novel profiles of anger, we examined associations between infant anger and preschool behavior problems in a large, longitudinal data set (N = 966). We also tested the role of life stress as a moderator of the link between early anger and the development of behavior problems. Although traditional measures of…

We tested a culturally integrative model examining the associations among economic hardship during infancy and Latino children's later sociobehavioral problems and academic skills prior to kindergarten entry, whether mothers' mental health problems and positive parenting behaviors mediated those associations, and whether they varied by mothers'…

The purpose of the current study was to examine the unique and interactive contributions of infant negative emotionality and family risk factors in the development of internalizing-only, externalizing-only, and co-occurring behavior problems in early childhood. The sample included 412 infants and their primary caregivers. Interviews and…

Clinically meaningful behavior problems are thought to be present beginning in the early toddler years, yet few studies have investigated correlates of behavior problems assessed before age 2 years. The current study investigated the direct and interactive contributions of early infant and caregiver characteristics thought to play an important…

The present study examined the early parenting and temperament determinants of children's antisocial and positive behaviors in a low-income, diverse ethno-racial sample. Participants were from the Early Head Start Research and Evaluation Project, which included 960 European American (initial M age = 15.00 months; 51.2% female) and 880 African…

Prior research has unearthed a link between early education and care (EEC) experiences and worse behavioral functioning for children, yet the research has not clearly delineated whether this link is due to early entry into care (timing), extensive hours of care (extent), or use of center-based care (type). Using a nationally representative sample…