Researchers and practitioners need robust measurement tools for evaluating knowledge of child development to better support parents and their children during pregnancy and the transition to parenthood. We addressed this need by evaluating the psychometric properties of the Domains of Development Instrument (DoDI) for measuring knowledge of…

Recently, biological aging has been quantified in DNA-methylation samples of older adults and applied as so-called "methylation profile scores" (MPSs) in separate target samples, including samples of children. This nascent research indicates that (1) biological aging can be quantified early in the life course, decades before the onset of…

Infancy is a period of significant change for both the brain and behavior. During the first two years of life, the brain experiences an explosion of synaptic connections and myelination, alongside rapid development in motor, linguistic, and social behavioral abilities. Understanding the relationship between brain development and behavioral…

The research presented in this article scrutinises how baby room leaders construct babyhood and how this impacts their practice. Our research feeds into a growing body of research that challenges the dominant developmentalist paradigm in early childhood education and care (ECEC) and instead highlights possibilities for self-determination, agency…

It is well documented that young children have difficulties with strategically remembering past events. Recent evidence on event memory in 35- and 46-month-old children suggests that strategic retrieval (yes/no questions) improves with age, whereas spontaneous retrieval is relatively unaffected by age. We here replicate and extend those findings…

The present study cross-sectionally investigated proportional reasoning abilities in 5- to 9-year-old children (n = 185) before they received instruction in proportional reasoning. This study addressed two important aspects of the development of proportional reasoning that remain unclear in the current literature: (1) the age range in which it…

Advancing learners' agency is a key educational goal. The advent of personalized EdTech, which automatically tailor learning environments to individual learners, gives renewed relevance to the topic. EdTech researchers and practitioners are confronted with the same basic question: What is the right amount of agency to give to learners during their…

We used a large state-wide sample of adolescent students in 8th, 10th, and 12th grades (N = 58,689) to examine the predictive value of screen time on bullying victimization, as well as its interaction with age by gender, including transgender and gender nonconforming identities. Participants were majority boys/men (52.3%), heterosexual (88.1%),…

The ways in which children and adolescents become interested in science have been well studied. However, little is known from a lifespan perspective about how this process continues from childhood through adulthood. This cross-national study builds an understanding of doctoral students in the sciences in the Chile and the United States and how…

Dimensional comparisons (i.e., comparing own performances across domains) may drive an increasing differentiation in students' math and verbal self-concepts over time, but little longitudinal research has directly tested this assumption. Using cross-sequential data spanning Grades 1-12 (N = 1069, ages 6-18, 92% White, 2% Black, 51% female,…

This paper focuses on two elements of the Passover Seder ritual and their connection to Piagetian education theory. After outlining Piaget's theory of genetic epistemology and its implications for education theory, it focuses on Sigel's distancing theory, which touts question asking as a tool for presenting information to students. This paper…

Administrators play a key role in establishing learning structures that impact student learning from the earliest developmental stages. Throughout the northeastern region of the United States, elementary schools continuously assess the quality of student-teacher interactions to evaluate students' developmental progress. The problem identified in…

Developmental science suggests that the consequences of mental health problems for life-course outcomes may depend on the timing of their onset. This study investigated the extent to which mental health predicted educational attainment at ages 17, 20, and 25 and whether gender moderated the links between mental health and educational attainment.…

The construct of belonging has been studied in many marginalised student groups yet has been understudied among students with intellectual disability. The present study used a large dataset from the United States to quantitatively investigate the construct of belonging among 7th to 12th grade students with the educational classification of…

Familial racial-ethnic socialization (RES) helps youth build tools of cultural resilience by providing messages regarding race and ethnicity that enable them to negotiate and survive the demands of a racialized society. Thus, RES is an important caregiving task for historically minoritized families, including Latine families in the United States.…