Background and aims: Many children with developmental language disorder (DLD) have difficulties in executive functioning (EF) and theory of mind (ToM). These difficulties might be explained by the theory that children's conceptual understanding changes over five stages of word meaning structure, from concrete and context-dependent to abstract and…

Background: Fundamental Motor Skills (FMS) are important building blocks for children's sport-participation and lifelong physical activity. In the last decade, several international studies have reported delays in the development of FMS. To get better insight into the Dutch situation and to provide future directions, this study examined the…

The much-needed interest in promoting a healthy lifestyle among school-age students has found a context for development: school gardens. There are numerous studies where using gardens as a teaching-learning context also improves students' performance in the experimental sciences. In this study, we proposed another interest that sets it apart and…

Background: Children with mild intellectual disabilities and emotional and behavioural problems whose parents have mental health concerns are at an increased risk of developing problems themselves. This study analysed the effectiveness of the 'You are Okay'-program aimed to support these children and parents and to reduce the risk of problem…

When in 2014 the "STEM Career Interest Survey" (STEM-CIS) was developed, the researchers could check this instrument with other target audiences. Also, the question remained if the instrument was applicable for both boys and girls. This article describes the development and validation of a Dutch language version of it, called the…

Authenticity is often supposed to play an important role in natural history museums. Yet we know very little about how it affects the perception and appreciation of museum objects. In the present study, we examined children's perceptions of real fossils and replicas. We explored four potential explanations underlying the appreciation of authentic…

The present study aims to provide a systematic understanding of how perspective-taking ability contributes to primary-school students' cooperative behaviours and learning outcomes. The present study is frontline as we combined person-oriented (e.g., describing patterns of behaviours based on individual characteristics), process-oriented (e.g.,…

We tested whether adoptive parenting played a role in the association between pre-adoption experiences and children's adaptive (responsiveness) and maladaptive (internalizing and externalizing behavioral problems, attention and sleep problems) behavioral adjustment over time. Ten-year-old girls, adopted at 13 months from institutional care (n =…

In this study, we examined the learning of letter-speech sound correspondences within an artificial script and performed an experimental analysis of letter-speech sound learning among dyslexic and normal readers vis-à-vis phonological awareness, rapid automatized naming, reading, and spelling. Participants were provided with 20 min of training…

Purpose: A large pool of evidence supports the beneficial effect of an external focus of attention on motor skill performance in adults. In children, this effect has been studied less and results are inconclusive. Importantly, individual differences are often not taken into account. We investigated the role of working memory, conscious motor…

The power of portfolios in enhancing student motivation is frequently emphasised. Portfolios are conceptualised as a tool to implement Assessment for Learning (AfL) in classroom practice. However, the relation between portfolios and AfL on the one hand, and student motivation on the other hand, is complex and subject to many assumptions. This…

Research in adults has shown that novel words are encoded rather swiftly but that their semantic integration occurs more slowly and that studying definitions presented in a written modality may benefit integration. It is unclear, however, how semantic integration proceeds in children, who (compared to adults) have more malleable brains and less…

In this study, we investigated which componential skills can be distinguished in the second language (L2) development of 140 bilingual children with specific language impairment in the Netherlands, aged 6-11 years, divided into 3 age groups. L2 development was assessed by means of spoken language tasks representing different language skills…

Two studies examined when and why children (10-13 years) help ethnic in-group and out-group peers. In Study 1 (n = 163) children could help an out-group or in-group peer with a word-guessing game by entering codes into a computer. While children evaluated the out-group more negatively than the in-group, they helped out-group peers "more"…

In the current study, associations between individual and friends' direct and indirect aggression and depressive problems were examined. It was expected that social status would moderate these associations such that low-status preadolescents would be more similar to their unilateral friends with regard to indirect, but not direct, aggression.…