The number line estimation task is frequently used to measure children's numerical magnitude understanding. It is unclear whether the resulting straight, horizontal, left-to-right-oriented estimate patterns indicate task constraints or children's intuitive number--space mapping. Three- to six-year-old children (N = 72, M[subscript age] = 4.89, 56%…

The development of key linguistic abilities is essential for young children and their academic success at school, in particular for children with a migration background who are at a greater risk of developing language deficits. Here, family interactions can provide valuable opportunities to support children's linguistic learning within the Home…

Using data from a longitudinal German large-scale study and structural equation modeling, this study investigated the effects of different dimensions of the early home learning environment (HLE) as well as the effect of language-related preschool quality at the age of 3 to 5 years on students' later school-relevant language proficiency (as…

The United States and Germany are two predominantly monolingual countries with a significant number of multilingual speakers. Previous research on multilingualism in children on the autism spectrum has found no adverse effects on children's language and communication development but often excluded children with complex communication needs or…

Research Findings: Are family literacy activities linked to gains in preschool-aged dual language learners' (DLLs') societal language vocabulary? To understand connections between literacy activities and vocabulary, we separately considered literacy activities in the respective heritage language and in the societal language, German, and accounted…

The home learning environment (HLE) index is composed of seven questions regarding educational parent-child interactions. To compare the psychometric characteristics of the six items of HLE index between the two different contexts of Germany and Iran, a sample including 468 preschool children from the National Educational Panel Study (NEPS),…

This study analyses practices regarding home languages in a nursery school from a multilingual district in Germany, and the language policies and discourses that become visible in these. First, the context is outlined of Early Childhood Education and Care for multilingual children in Germany; then, the concepts of practices, discourses and…

The present study is based on longitudinal data from a German early childhood education and care (ECEC) governmental initiative assessing children's grammatical and vocabulary development between 2;6 and 4;0 years (N = 1,331), quality of the home learning environment and quality of the preschool setting. Results showed that the quality of the home…

The quality of instructional supportive interactions between preschool teachers and children positively relates to learning and developmental outcomes of children in institutions of early childhood education and care. The main focus of preschool teacher research, therefore, is on the impact of preschool teacher competencies in interaction quality.…

Teachers' professional vision is the ability to notice and interpret classroom interactions and may be considered an aspect of a teacher's competence. Despite research on school teachers, little is known about this competence in early childhood teachers. In this study, the relation between early childhood teachers' professional vision and their…

International study results point to potential negative associations of time spent in early childhood education and care (ECEC) centres in the first 3 years of a child's life and socio-emotional outcomes. However, the transferability of international results to the German ECEC system and the impact of characteristics of the home learning…

To date, there is little evidence regarding how well children from socially and educationally disadvantaged families succeed in interacting with other children and teachers in preschools. This paper aims to address this limitation by analysing the relationships between the quality of children's interactions in preschools and indicators of…

In view of increasing diversity regarding the cultural background of children in pre-schools and the like, it is important to know how they differ in their perception of social networks. This study investigated the perception of social support networks in young children from three different eco-social milieus. Participants (N = 138, 4-6 year olds)…

This book contains a compilation of papers presented at the International Psychological Applications Conference and Trends (InPACT) 2024, organized by the World Institute for Advanced Research and Science (WIARS), held in International Psychological Applications Conference and Trends (InPACT) 2024, held in Porto, Portugal, from 20 to 22 of April…

Children in early childhood education and care (ECEC) spend a considerable amount of time interacting with their peers. However, open questions remain on whether and how children influence their peers' language development. The present study examined effects of peers' German receptive vocabulary (n = 1,871) on individual children's (n = 431)…