The current study examines change and stability of cognitive skills across life stages and delves into the factors contributing to changes in cognitive skills. Specifically, we examine the associations between cognitive skills and individual characteristics and contextual factors in a large sample of German adults aged 16-65 years (N = 2,430;…

In this longitudinal study, we investigated the factor structure and stability of early-life temperament in a German sample, using three measures developed within Rothbart's psychobiological approach. Temperament was measured using the Infant Behavior Questionnaire Revised (IBQ-R) at the ages of 6 and 12 months, the Early Childhood Behavior…

Delay of gratification tasks have an impressive predictive value for various outcomes and are designed to measure self-regulation. Since many behavioural and psychological conditions in children are related to limitations in self-regulation, the extent to which delay tasks can be used as a screening for the detection of psychopathology is…

The perception and manipulation of spatial information are essential for mathematical learning, and research highlights gender differences in spatial abilities. The present study contributes to the question of whether these differences are evident at earlier ages and how they interact with task complexity in mental rotation. We developed the…

This cross-cultural multiple case study investigates the approaches of educators in nature-based preschools in Turkey and Germany towards risky play, exploring factors influencing play behaviours and educator roles. Four educators from Turkey and three educators from Germany participated in the study. Through qualitative analysis of interviews and…

Poland, still considered by some to be a bastion of Catholicism in Europe, is becoming more secularised every year, and its society resembles the postmodern societies of Western Europe. The changes in religiousness, which affect especially the younger Poles, are so strong that they call into question the validity of the current form of religious…

Germany's VET system is highly gender-segregated and marked by high dropout rates. This article investigates the dropout behaviour of apprentices in gender-atypical training occupations. First, we investigate whether gender-atypical apprentices drop out at a higher rate than their majority peers. Second, we examine differences in the self-reported…

Research suggests that heterogeneous life experiences (e.g. multilingualism) might facilitate the development of mental flexibility. The current paper presents the conceptual replication of a study originally presented by Greve and colleagues [Greve, W., Koch, M., Rasche, V., and Kersten, K. (2021). Extending the Scope of the 'Cognitive Advantage'…

It is broadly admitted that social contexts of reasoning may prompt children and adolescents to improve the quality of their reasoning. However, it is not clear how this quality may be assessed when it comes to arguments expressed within oral interactions in diverse settings (whole-class or small-group discussions) by students of different ages…

The acquisition of voice in Greek remains understudied, especially in heritage populations. Voice in Greek poses a challenging acquisition task for children due to its syncretism, marking various verb classes as well as passives. The present study explores the acquisition of anticausatives, reflexives, and passives in 6-to-8-year-old monolingual…