Children's fuzziness leads to increased variance in the data, data loss, and high dropout rates in developmental studies. This study investigated the importance of 20 factors on the person (child, caregiver, experimenter) and situation (task, method, time, and date) level for the data quality as indicated via the number of valid trials in 11…

In this study, maternal socialization goals in early childhood were linked to qualities of children's self in middle childhood, while also considering maternal education and child gender. Estonian mothers (N = 209; M[subscript age] = 33.6; 52.2% had university education) provided ratings of their socialization goals for children (52.2% girls;…

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…

Emphasis on continuous infant sleep overnight may be driven by parental concern of risk to child mental health outcomes. The Mercy Pregnancy and Emotional Wellbeing Study (MPEWS) examined whether infant sleep at 6 and 12 months postpartum predicts anxiety disorders at 2-4 years, and whether this is moderated by maternal depression, active physical…

To date, virtually no studies have examined toddlers' non-response in developmental tasks. This study investigates data from 3667 toddlers to address (1) whether two aspects of non-response (completion and engagement) are separable, (2) how stable these aspects are from ages two to three, (3) how non-response relates to background characteristics,…

Child temperament is a predictor of non-verbal ability (i.e., thinking and problem-solving skills that do not fundamentally require verbal language production and comprehension). Given that temperament scores might vary depending on whether the reporter is a parent or a teacher, this study analyzes (a) whether those reports are different and (b)…

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…

Social scientists know little about the experiences of transgender and nonbinary (TGNB) parents and their children's development. In this study of 138 transgender parents (age M = 35.28 years; 86.2% White/European American) with binary (52.9%) and nonbinary (47.1%) gender identities, we explore the links between family processes and young…

Measures of parasympathetic regulation, such as respiratory sinus arrhythmia (RSA), predict executive function outcomes, including inhibitory control, across childhood. Respiratory sinus arrhythmia augmentation tends to be associated with more maladaptive outcomes, compared to RSA suppression, but the literature regarding RSA profiles and…

Child temperament is a predictor of non-verbal ability (i.e. thinking and problem-solving skills that do not fundamentally require verbal language production and comprehension). Given that temperament scores might vary depending on whether the reporter is a parent or a teacher, this study analyses (a) whether those reports are different and (b)…

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…

Research distinguishes three types of arithmetic: exact arithmetic, computational estimation and approximate arithmetic. Little is, however, known about the interrelationship among these three arithmetic skills and the general cognitive and early numeracy skills that underlie these arithmetic skills. The current study investigates this…

This study examined emotion understanding and motor skills as predictors of children's understanding of faux pas. Faux paus situations are those in which someone causes unintentional offence or behaves inappropriately. Understanding of faux pas requires knowledge of social norms in specific situations as well as emotion understanding.…

The relation between maternal behavior and neurocognitive development is complex and may depend on the task context. We examined 5-month-old infant frontal electroencephalogram (EEG), maternal intrusiveness (MI) evaluated during two play contexts at 5 and 10 months, and a battery of executive function (EF) tasks completed at 48 months to evaluate…