Few studies have examined the developmental pathways linking early pesticide exposure to children's socioemotional problems. Infant temperament is an important early indicator of socioemotional development and may be influenced by early environmental contaminants. However, no study to date has examined the association between household pesticide…

A student's socioeconomic status (SES) has a significant relation to their academic achievement. Much of this work has explored this in math and reading, but less is known about how SES relates to science achievement, particularly in the early grades. Using quantile regression with nationally representative data, we explored this relation in…

Despite support for the importance of early language environments, little is known about the naturally occurring experiences children have in preschool settings. The current study sample included 91 children (M[subscript age] = 4.72 years; 56% male; 67% White) from 23 preschool classrooms and nearly 1500 h of language environment data from three…

Children's early experiences have potential to shape their development through early childhood, middle childhood, and into adolescence. Family structure at birth and material hardship may offer insight into how children's health and well-being are shaped within their family of origin. The current paper examined (a) the association between family…

The family context has been identified as an important predictor of the development of children's executive function (EF). An emerging line of research demonstrates that parents' own EF is linked to their caregiving behaviours and their children's EF. However, researchers have yet to explore the extent to which parental EF is related to specific…

Literacy exposure checklists that assess parental picture book knowledge (Parental Title Checklist [PTC] and Parental Author Checklist [PAC]) have been developed as proxy measures for literacy environments. Although previous research suggests that parental picture book knowledge is a strong predictor of language skills for preschoolers older than…

The home numeracy environment (HNE) is often predictive of children's early mathematics skills, though the findings are mixed. Overall, research on kindergarten-aged children demonstrates a relation between the HNE and early numeracy skills, whereas findings for preschool-aged children are more equivocal. One potential reason for equivocality of…

The objective of this study was to examine the role of the stimulus material for the prediction of later IQ by early learning measures in the Visual Expectation Paradigm (VExP). The VExP was assessed at 9?months using two types of stimuli, Greebles and human faces. Greebles were assumed to be associated with a higher load on working memory in…

Although prominent models emphasize that maternal, child, and situational variables are associated with parenting stress, previous research has often neglected to examine associations between maternal and infant temperament characteristics and stress experienced in the parenting role. Additionally, while predictors of global parenting stress have…

The effects of low income on children's adjustment might be accounted for by disruptions to hypothalamic-pituitary-adrenal (HPA)-axis activity and to the development of effortful control. Using longitudinal data and a community sample of preschool-age children (N?=?306, 36-39?months) and their mothers, recruited to over-represent low-income…

The current study examined the influence of maternal characteristics on the development of infant smiling and laughter, a marker of early positive emotionality (PE) and how maternal characteristics and the development of infant PE contributed to subsequent maternal parenting. One hundred fifty-nine mothers with 4-month-old infants participated.…

Research on the effect of paternal mental health problems, particularly on young children, is based predominantly on clinical levels of depression. Furthermore, potential mediators such as marital discord have often been overlooked. This longitudinal community study assessed the association between paternal mental health symptoms in a community…

The current study examined concurrent and longitudinal relations between maternal negative affective behaviour and child negative emotional expression in preschool age children with (n=96) or without (n=126) an early developmental risk, as well as the predictions of later behaviour problems. Maternal negative affective behaviour, child…

This longitudinal assessment concentrated on the relation between the home literacy environment (HLE) and early language acquisition during infancy and toddlerhood. In study 1, after controlling for socio-economic status, a broadly defined HLE predicted language comprehension in 50 infants. In study 2, 27 children returned for further analyses.…

Previous studies of childhood fear, worry, and ritualistic behaviour have been limited by restricted age ranges, narrow ranges of anxiety phenomena, non-comparable methodologies, and assessment of typical behaviour within a pathological context. Content and intensity of fear, worry, and ritualistic behaviour, and associations among these…