Shyness is typically associated with avoidant social behavior and restricted affect in new social situations. However, we know considerably less about how one child's shyness influences another child's behavior and affect in new social situations. Children's shyness was parent-reported when children were age 3 (N = 105, 52 girls, M[subscript age]…

Objective: To identify childhood psychopathological features that predict the onset of adolescent Bipolar (BD) versus Unipolar Major Depressive Disorder (UD) during adolescence. Method: We analyzed clinical data from 495 juveniles diagnosed with DSM-5 UD (n = 359), and BD (n = 136), using bivariate analysis and multivariate logistic regression…

Purpose: The present study was designed to investigate persistence in preschool children with developmental language disorder (DLD) compared to similar-age peers with typical language (TL) on tasks designed to be moderately challenging, yet equivalent in difficulty for both groups. Method: Sixteen preschool-age children with DLD were matched to 16…

Children's relationships with their peers have important associations with their behaviour. The current study examined children's friendships during the formative school years and hypotheses were made regarding associations between how well-liked children were by peers, the reciprocity of these friendships, and with whom friendships were made.…

The Chairs of Conflict Resolution (CoCR) is a process developed for training children to discuss their conflicts constructively so they experience win-win outcomes. The present study examines the discussion taking place during the use of CoCR with young children 4-6-years-old. The discussion between the two children proceeded in four phases: (a)…

This study investigated associations of the Incredible Years (IY) parenting program with children's DNA methylation. Participants were 289 Dutch children aged 3-9 years (75% European ancestry, 48% female) with above-average conduct problems. Saliva was collected 2.5 years after families were randomized to IY or care as usual (CAU). Using an…

The aim of this research is to examine the impact of reading storybooks and the presence of different characters such as humans, animals, and fantasy characters in storybooks on children's costly sharing behaviour. A total of 235 children participated in the study. The children were presented with 20 stickers and were asked to choose their 10…

What drives children to explore and learn when external rewards are uncertain or absent? Across three studies, we tested whether information gain itself acts as an internal reward and suffices to motivate children's actions. We measured 24-56-month-olds' persistence in a game where they had to search for an object (animal or toy), which they never…

Peripheral sensorimotor stimming activity, such as rocking and fidgeting, is widely considered irrelevant to and even distracting from learning. In this critical-pedagogy conceptual paper, we argue that stimming is an intrinsic part of adaptive functioning, interaction, and cognitive dynamics. We submit that when cultural resources build from…

This study used naturalistic audio-visual recordings from early care and education (ECE) settings to examine the associations between toddlers' (76 toddlers, 40 female, M[subscript age] = 32.94 months, SD = 4.92 months) multimodal emotion expressions and emotion-related vocalizations with contingent teacher interventions. Findings indicated a…

This study investigated the potential influences of administration context on the measurement of child skills. The Brief Observation of Social-Communication Change (BOSCC) was administered at two time points to preschool-aged children with autism in two contexts: (1) at school by trained research staff and (2) at home by the parent. Participants…

Children show less positivity toward gender-nonconforming (GN) than gender-conforming (GC) peers. Yet, little is known about children's reasoning about peers of varying gender expressions, including age-, gender-, and culture-related influences. We investigated how children aged 4- to 5- and 8- to 9-years-old in Hong Kong and Canada (N = 678)…

This study examines the moment-to-moment within-person associations between maternal and child behaviors during a challenging puzzle task and compares these associations between mother--child dyads from the United States (n = 99, 52 boys, M[subscript child age] = 56.05 months, SD = 6.44) and China (n = 101, 46 boys, M[subscript child age] = 57.41…

Suspension and expulsion have been documented concerns in childcare centers throughout the United States for nearly 20 years. This study examined suspension and expulsion practices in community childcare centers two years into the COVID-19 pandemic (May 2022). Survey data from 131 administrators of community childcare programs were analyzed. It…

This study utilised the Early Growth and Development Study (N = 561 adoptive children; 57.2% male, 55.3% White), a study of children adopted at birth, to examine heritable (birth parent psychopathology) and prenatal risk (prenatal maternal distress and smoking during pregnancy), infant negative affectivity, adoptive parent over-reactivity and…