Previous research on children's knowledge about the mind has primarily focused on their comprehension of false beliefs, leaving the conceptualization of thoughts and thinking less explored. To address this gap, we developed a new assessment tool, the interview about the mind (IaM), to assess children's understanding of the mind. Two studies…

Effective communication is a fundamental aspect of children's daily living, enabling interaction with adults and peers. A rich literature suggests that communicative abilities develop with age, while little is known about cross-cultural differences and similarities. This study presents a comparison of the communicative performance of Finnish (n =…

Assessment of progress toward UN Sustainable Development Goal 4 requires measurement of the proportion of children aged 24 to 59 months developmentally on track in health, learning, and psychosocial well-being (Indicator 4.2.1). UNICEF's methodological work culminated with the development of the Early Childhood Development Index 2030 (ECDI2030) to…

The main objective of the research is to examine the impact of regular implementation of Education Program made of CATCH Program Movement Activities on the locomotor and manipulative skills of preschool children. Implementation of Education Program made of CATCH Program Movement Activities was carried out in an independent preschool located in…

The abilities comprising social intelligence are critical to children's development and interpersonal functioning, and there is a need for reliable and valid tools for measuring them. This paper describes the Children's Social Comprehension Scale (CSCS), which is a performance-based test of the cognitive component of social intelligence for young…

Substantial evidence endorses the early assessment of cognitive development to promote children's developmental health and well-being. Especially in the Brazilian context, there is a paucity of standardized screening and assessment tools with normative data to evaluate young children. This study provided initial reliability and validity evidence…

Using a large sample of longitudinal assessment data from children in publicly funded infant/toddler care, preschool, and kindergarten (analytic N = 453,468), this study modeled language and literacy trajectories from early infancy through kindergarten for dual language learners (DLLs) from homes representing many different languages and their…

Differentiation hypotheses concern changes in the structural organization of cognitive abilities that depend on the level of general intelligence (ability differentiation) or age (developmental differentiation). Part 1 of this article presents a review of the literature on ability and developmental differentiation effects in children, revealing…

The competence in identifying and comprehending the meaning of idiomatic expressions developed at an early age. However, second language learners reach the comprehension skill differently within the age and at pace. There are many unresolved questions regarding the age which children start to comprehend L2 idioms. The objective of this study was…

Social working memory (WM) has distinct neural substrates from canonical cognitive WM (e.g., color). However, no study, to the best of our knowledge, has yet explored how social WM develops. The current study explored the development of social WM capacity and its relation to theory of mind (ToM). Experiment 1 had sixty-four 3- to 6-year-olds…

This paper examines the child development outcomes of two cohorts of children who were exposed to the same intervention at different points in time. One cohort was eligible to access playgroups during the first year of a five-year project cycle, beginning at age four. The other cohort became eligible to access these services during the third year…

The purpose of the present research is to explore the development of self-control ability during childhood. A group of 360 children (185 boys and 175 girls from grades 2, 4, and 6) participated in the survey. They completed the Children's Perceived Self-Control Scale (CPSC) which included the interpersonal self-control (ISC), the personal…

Pierce "et al." (2017) have proposed that variations in the timing, quality and quantity of language input during the earliest stages of development are related to variations in the development of phonological working memory and, in turn, to later language learning outcomes. To examine this hypothesis, three groups of children who are…

Research on sources of individual difference in parental Infant-Directed Speech (IDS) is limited and there is a particular lack of research on fathers' compared to mothers' speech. This study examined the predictive relations between infant characteristics and variability in paternal lexical diversity (LD) in dyadic free play with two-year-olds (M…

It has been argued that children who possess an advanced theory of mind (ToM) are viewed positively by their peers, but the empirical findings are mixed. This meta-analysis of 20 studies including 2,096 children (aged from 2 years, 8 months to 10 years) revealed a significant overall association (r = 0.19) indicating that children with higher ToM…