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Providing first language (L1) translations in L2 vocabulary interventions may be beneficial for L2 vocabulary learning. However, in linguistically diverse L2 classrooms, teachers cannot provide L1 translations to all children. Social robots do offer such opportunities, as they can be programmed to speak any combination of languages. This study investigates whether providing L1 translations in a robot-assisted L2 vocabulary training facilitates children's learning. Participants were Turkish-Dutch kindergartners (n = 67) who were taught six Dutch (L2) words for which they knew the L1 (Turkish), but not the L2 Dutch form. Half of these words were taught by a Turkish-Dutch bilingual robot, alongside their Turkish translations; the other half by a monolingual Dutch robot. Children also completed Dutch and Turkish receptive vocabulary tests. Results of generalized linear regression models indicated better performance in the Dutch-only condition than in the Turkish-Dutch condition. Children with well-developed Turkish and Dutch vocabulary knowledge outperformed children with less well-developed vocabulary knowledge. The majority of children preferred working with the bilingual robot, but children's preference did not affect word learning. Thus, contrary to our prediction, we found no evidence for a facilitating effect of providing L1 translations through a robot on bilingual children's L2 word learning.

This study investigates the degree to which children anthropomorphize a robot tutor and whether this anthropomorphism relates to their vocabulary learning in a second-language (L2) tutoring intervention. With this aim, an anthropomorphism questionnaire was administered to 5-year-old children (N = 104) twice: prior to and following a seven-session L2 vocabulary training with a humanoid robot. On average, children tended to anthropomorphize the robot prior to and after the lessons to a similar degree, but many children changed their attributed anthropomorphic features. Boys anthropomorphized the robot less after the lessons than girls. Moreover, there was a weak but significant positive correlation between anthropomorphism as measured before the lessons and scores on a word-knowledge post-test administered the day after the last lesson. There was also a weak but significant positive correlation between the change in anthropomorphism over time and scores on a word-knowledge post-test administered approximately 2 weeks after the last lesson. Our results underscore the need to manage children's expectations in robot-assisted education. Also, future research could explore adaptations to individual children's expectations in child-robot interactions.

Early individual differences in self-control are predictive of numerous developmental outcomes, such as physical health and risk-taking behaviours. Therefore, it is important to improve our understanding of how young children manage to exert self-control. This study investigates two- and three-year-old children’s behaviours during two self-control tasks and the association between the occurrence of these behaviours and task success. Furthermore, the study examines relations between timing and occurrence of these behaviours and caregiver-rated self-control. Two- and three-year-olds (N = 62) were given a snack and gift delay of gratification task to measure self-control. The following behaviours were coded second-by-second during the delay: direction of visual attention and the body (directed towards or away from the reward), distracting with the hands (fidgeting), and actively ‘withholding’ the hands (e.g., holding one hand with the other). To assess caregiver-rated self-control, parents and teachers filled out a selected set of items from the Early Childhood Behaviour Questionnaire inhibitory control scale (Putnam et al. 2006). The percentage of time that children looked away and withheld their hands from the reward positively predicted task success, suggesting that these behaviours are strategic at this young age. Average latency of initiating these behaviours was

Contains fulltext : 201324.pdf (Publisher’s version ) (Closed access) The importance of promoting mathematical creativity in education is increasingly acknowledged. Several strategies have been recommended to foster mathematical creativity such as creating an open atmosphere in the classroom, offering open lessons and possibly enriching mathematics education with ideas from other disciplines and experiences from out-of-school contexts. However, it is not yet clear in what way recommended pedagogical strategies promote pupils' mathematical creativity. Therefore, the purpose of this case study was to gain an in-depth understanding of promoting mathematical creativity in educational practice. To this end, interactions between a teacher and her 22 fourth-grade pupils in three different types of mathematics lessons were investigated. An 'open' in-school mathematics lesson, an 'open' out-of-school mathematicslesson and a regular ('closed') mathematics lesson were video recorded and interactions were transcribed verbatim. Subsequently, dialogic episodes were identified in the video transcripts and were coded on mathematical creative expressions of pupils and strategies used by the teacher. Furthermore, after each lesson the teacher was interviewed regarding her experiences with the given lesson. Interviews were audiotaped, transcribed verbatim and analysed by using constant comparison analyses. Findings indicate that mathematical creativity was only promoted in the two open mathematics lessons. More specifically, mathematical creative expressions were related to longer whole class dialogues in which the teacher created an open atmosphere; she created opportunities for pupils to express their ideas and took these ideas seriously. Although in some episodes of the regular mathematics lesson this open atmosphere was also created, no mathematical creativity occurred. 12 p.

Previous research has shown that bilingual children outperform monolinguals on tasks testing cognitive control. Bilinguals’ enhanced cognitive control is thought to be caused by the necessity to exert more language control in bilingual compared to monolingual settings. Surprisingly, between-group research of cognitive effects of bilingualism is hardly ever combined with within-group research that investigates relationships between language control and cognitive control. The present study compared 27 monolingual Dutch and 27 bilingual Turkish-Dutch children matched on age and fluid intelligence on their performance in a nonverbal switching task. Within the group of bilinguals, the relationship between nonverbal switching and language switching was examined. The results revealed no between-group differences on nonverbal switching. Within the bilingual sample, response times in the language switching and nonverbal switching tasks were related, although no relationships were found between accuracy, switching cost and mixing cost on both tasks. The results support the hypothesis that children utilize domain-general cognitive control in language switching, but this relationship does not entail that bilinguals have better cognitive control than monolinguals.

There is strong evidence that high quality early childhood programs targeting disadvantaged groups can have lasting benefits and high returns on investment. The evidence for universal programs, however, is less conclusive. The present paper examines the claims of universal and targeted approaches to preventing early education gaps. First, recent findings on the universal unitary early education and care systems in Denmark and Norway are reviewed regarding the educational quality and compensating effects on disadvantaged children. Second, the advantages and disadvantages of targeted approaches are discussed, focusing in particular on the trade-off between cost-effectiveness and aggregated impact on society. Third, the Dutch educational equity policy will be analyzed as a case in point to illustrate the dilemmas, contradictions and paradoxes of equity policy pertaining to targeted and universal approaches. Finally, as a synthesis of the findings, two complementary approaches are outlined: a universal within targeted and a targeted within universal approach.

This study evaluates the effects of the Mathematics, Arts, and Creativity in Education (MACE) program on students’ ability in geometry and visual arts in the upper grades of elementary school. The program consisted of a lesson series for fourth, fifth, and sixth grade students in which geometry and visual arts were integrated, alongside with a professional development program for teachers. A quasi-experimental study was conducted in which three groups of teachers and their classes were investigated. One group of teachers taught the lesson series and followed a professional development program (n = 36), one group of teachers only taught the lesson series (n = 36), and a comparison group taught a series of traditional geometry lessons from mathematical textbooks (n = 43). A geometrical ability, creativity, and vocabulary test and a visual arts assignment were used in a pre- and post-measurements to test the effects of the MACE program. Results showed that students who received the MACE lesson series improved more than students who received regular geometry lessons only in geometrical aspects perceived in a visual artwork. Regarding students’ understanding and explanation of geometrical phenomena and geometrical creative thinking, all students improved, but no differences between the groups were found, which implies that on these aspects the MACE program was as effective as the comparison group that received a more traditional form of geometry education.

Exploration plays a key role in the development of children. While exploring, children develop new skills by perceiving and acting upon the possibilities for action that are specified in the environment. This study examined the relations between young children's exploration during free play and the spatial characteristics of the indoor playroom space in childcare centers, using an observation scheme based on Gibson's theory of perception-action affordances. The study was carried out in mixed-age groups, with ages ranging between 11 and 48 months. The results showed that depth of exploration of space was positively related to the use of tables and activity centers, and also to the child's task-orientation as rated by the caregivers. Breadth of exploration revealed a reversed pattern of relations. The findings indicate that studying children's exploration of indoor playroom space as affordances-guided perception-action cycles can contribute to a more comprehensive understanding of the role of spatial attributes in children's exploratory play.

This study examined the unfolding in real time of original ideas during divergent thinking (DT) in five- to six-year-olds and related individual differences in DT to executive functions (EFs). The Alternative Uses Task was administered with verbal prompts that encouraged children to report on their thinking processes while generating uses for daily objects. In addition to coding the originality of each use, the domain-specific DT processes memory retrieval and mental operations were coded from children’s explanations. Six EF tasks were administered and combined into composites to measure working memory, shifting, inhibition, and selective attention. The results replicated findings of a previous study with the same children but at age four years: (1) there was a serial order effect of the originality of uses, and (2) the process mental operations predicted the originality of uses. Next, the results revealed that both domain-general EFs and domain-specific executive processes played a role in the real-time unfolding of original ideas during DT. Particularly, the DT process mental operations was positively related to the early generation of original ideas, while selective attention was negatively related to the later generation of original ideas. These findings deepen our understanding of how controlled executive processes operate during DT.

The Dynamic Overlapping Waves Model (DOWM) can model strategy use in problem-solving tasks for strategies that can be construed as developmentally and hierarchically ordered (Boom, 2015). We observed children’s (Mage = 11 years, SD = 6 months) strategy use during a task in which they had to find the rotation direction of the last gear in a series of connected gear chains, given the rotation direction of the first gear. Using DOWM, we found that strategy use was ordered as expected, from unskilled sensorimotor strategies to abstract strategies, and from less to more efficient in terms of speed and accuracy. This order aligns with the idea that perceptual learning is central to the emergence of abstract conceptual knowledge. Moreover, the current study shows that the DOWM does not preclude forward and backward transitions and even occasional transitions that skip certain strategies in the ordering. The DOWM seems a promising tool to developmentally capture the breadth of behavioral repertoire children display when they adopt new strategies for various problem-solving tasks.

We analysed effective and promising interventions, within the classroom and school microsystems, aiming to promote equality and belongingness for immigrant, Roma, and low-income children attending early childhood education and care (ECEC) and primary education in eight European countries. Over 500 interventions were identified, and 78 interventions were analysed. We found that while 79% of the interventions provided some type of language support, only 32% considered children’s heritage language. Importantly, around 22% of the interventions targeted ECEC settings specifically, with most ECEC interventions implemented at the national level, taking place in the classroom and implemented by classroom teachers, and involving language support and family involvement activities. Language support seems to be widespread, recognising the foundational nature of language for learning, communication, and belongingness. However, comprehensive intercultural policies that explicitly support culture maintenance, communication, and positive contact may be valuable in guiding future developments. info:eu-repo/semantics/publishedVersion

Is it possible to distinguish different organizational designs of childcare centers? If so, do different organizational designs differ in diversity and inclusion (D&I) strategy? This study explores in a qualitative case study amongst thirteen childcare centers on their design and strategy. More specifically, are attention for differences in ethnicity, color and social-economic backgrounds of staff, clients and children (diversity) and efforts to ensure sense of belonging and uniqueness (inclusion) of everyone involved part of the organizational strategy? By interviewing location managers, information on organizational strategies, design and D&I strategy was obtained. Analysis indicates the existence of different D&I strategies, which are related to different organizational designs, in accordance with characteristics from a configurational organization theory. D&I strategy in organizational strategy and design was found mainly as a ‘multicultural-loving’ strategy in most expensive market-oriented childcare centers, and mainly out of necessity embedded in cheapest public childcare centers. However, D&I strategy was also related to client diversity, showing segregation and inequality. This exploration provides questions for further research on organizational designs and its relation to D&I strategy at different organizational levels.

Robots are used for language tutoring increasingly often, and commonly programmed to display non-verbal communicative cues such as eye gaze and pointing during robot-child interactions. With a human speaker, children rely more strongly on non-verbal cues (pointing) than on verbal cues (labeling) if these cues are in conflict. However, we do not know how children weigh the non-verbal cues of a robot. Here, we assessed whether four- to six-year-old children (i) differed in their weighing of non-verbal cues (pointing, eye gaze) and verbal cues provided by a robot versus a human; (ii) weighed non-verbal cues differently depending on whether these contrasted with a novel or familiar label; and (iii) relied differently on a robot's non-verbal cues depending on the degree to which they attributed human-like properties to the robot. The results showed that children generally followed pointing over labeling, in line with earlier research. Children did not rely more strongly on the non-verbal cues of a robot versus those of a human. Regarding pointing, children who perceived the robot as more human-like relied on pointing more strongly when it contrasted with a novel label versus a familiar label, but children who perceived the robot as less human-like did not show this difference. Regarding eye gaze, children relied more strongly on the gaze cue when it contrasted with a novel versus a familiar label, and no effect of anthropomorphism was found. Taken together, these results show no difference in the degree to which children rely on non-verbal cues of a robot versus those of a human and provide preliminary evidence that differences in anthropomorphism may interact with children's reliance on a robot's non-verbal behaviors., European Union's Horizon 2020 Research and Innovation Program L2TOR Project; European Union (European Union)

Bilingualism as it occurs in current societies is a complex, multidimensional and dynamic phenomenon, calling for new approaches to capture this concept. This study shows the feasibility of a person-centred approach by combining measures of the use of and proficiency in the first and second language from 110 young Turkish–Dutch children at two measurement waves, using two existing datasets. Latent Profile Analysis revealed four profiles, equivalent at age four and six: 1) Dominant L1 use, relatively low L1 and L2 proficiency, 2) Dual L1 and L2 use, around average L1 and L2 proficiency, 3) Dominant L1 use, relatively high L1 and L2 proficiency and 4) Dominant L2 use, relatively high L2 proficiency. Latent Transition Analysis indicated that children changed in profiles over time. Regression analyses showed that profiles were differently related to the family's socioeconomic status and children's nonverbal intelligence at age four. No relations were found at age six.

This study investigates the relationship between nonword repetition (NWR) and vocabulary in 2-year-olds. Questions addressed are whether (1) NWR and vocabulary are associated, (2) phonotactic probability affects NWR, and (3) there is an interaction effect between phonotactic probability and vocabulary on NWR performance. The general aim of the study is to investigate whether NWR, as a task of phonological storage, assesses the quality of phonological representations in children as young as 2 years of age. 557 Dutch 2-year-olds performed a NWR task containing items of varying phonotactic probability as well as a receptive vocabulary task. The results showed a moderate, significant correlation between NWR and vocabulary. Phonotactic probability had an effect on NWR performance. Further analyses showed that there was a significant interaction between phonotactic probability and vocabulary for part of the items. These results support previously reported effects of vocabulary and phonotactic probability on NWR in older, English-speaking children for a large sample of Dutch-speaking 2-year-olds, and provide evidence that NWR assesses the quality of phonological representations already in very young children.

Contains fulltext : 195507.pdf (Publisher’s version ) (Open Access) A lot of research has been devoted to number line estimation in primary school. However, less is known about the early onset of number line estimation before children enter formal education. We propose that ordering strategies are building blocks of number line estimation in early childhood. In a longitudinal study, children completed a non-symbolic number line estimation task at age 3.5 and 5 years. Two ordering strategies were identified based on the children's estimation patterns: local and global ordering. Local ordering refers to the correct ordering of successive quantities, whereas global ordering refers to the correct ordering of all quantities across the number line. Results indicated a developmental trend for both strategies. The percentage of children applying local and global ordering strategies increased steeply from 3.5 to 5 years of age. Moreover, children used more advanced local and global ordering strategies at 5 years of age. Importantly, level of strategy use was related to more traditional number line estimation outcome measures, such as estimation accuracy and regression fit scores. These results provide evidence that children use dynamic ordering strategies when solving the number line estimation task in early stages of numerical development. 16 p.

The preschool period is marked by rapid growth of children's self-regulation and related executive functions. Self-regulation is considered an important aspect of school readiness and is related to academic and social–emotional outcomes in childhood. Pretend play, as part of the early childhood curriculum, is hypothesized to support self-regulation. An important question concerns whether self-regulation should be considered an individual ability or, partly, a situated skill that is influenced by aspects of the classroom context. The aims of this study were to investigate the degree to which 3-year-olds showed cognitive and emotional self-regulation in a naturalistic play setting and to examine how test-based measures of children's cool and hot executive functions and the quality of their pretend play contributed to this observed self-regulation. The results indicated that 3-year-olds showed aspects of cognitive and emotional self-regulation. Cool executive functions appeared significantly related to emotional self-regulation, whereas hot executive functions were not significantly related to cognitive or emotional self-regulation. The quality of pretend play was strongly associated with cognitive self-regulation and, to a lesser extent, emotional self-regulation. The findings of this study suggest that both preschoolers' cool executive functions and the quality of play contributed to their self-regulation skills in naturalistic settings.HighlightsPreschoolers' cognitive and emotional self-regulation in a naturalistic play setting are two interrelated but separate constructs.Children's cognitive executive functions predict observed emotional self-regulation during pretend play.The quality of pretend play is strongly associated with children's cognitive self-regulation and, to a lesser extent, emotional self-regulation.

Contains fulltext : 175358.pdf (Publisher’s version ) (Closed access) Background: Mathematics achievement is related to positive and negative emotions. Pekrun's control-value theory of achievement emotions suggests that students' self-concept (i.e., self-appraisal of ability) may be an important mediator of the relation between mathematics achievement and emotions. Aims: The aims were (1) to investigate the mediating role of mathematical self-concept in the relation between mathematics achievement and the achievement emotions of enjoyment and anxiety in a comprehensive model, and (2) to test possible differences in this mediating role between low-, average-, and high-achieving students. Sample: Participants were ninth-grade students (n = 1,014) from eight secondary schools in the Netherlands. Methods: Through an online survey including mathematical problems, students were asked to indicate their levels of mathematics enjoyment, anxiety, and self-concept. Structural equation modelling was used to test the mediating role of self-concept in the relation between mathematics achievement and emotions. Multigroup analyses were performed to compare these relations across the three achievement groups. Results: Results confirmed full mediation of the relation between mathematics achievement and emotions by mathematical self-concept. Furthermore, we found higher self-concepts, more enjoyment and less math anxiety in high-achieving students compared to their average and low-achieving peers. No differences across these achievement groups were found in the relations in the mediational model. Conclusions: Mathematical self-concept plays a pivotal role in students' appraisal of mathematics. Mathematics achievement is only one factor explaining students' self-concept. Likely also classroom instruction and teachers' feedback strategies help to shape students' self-concept. 18 p.

The present study examined the effects of anticipated achievement feedback on students' semantic processing on the neural level, using event-related brain potentials (ERPs). Participants (N = 79) anticipated either self-referential or normative achievement feedback regarding an announced upcoming test. Additionally, their performance expectations (low vs. no expectations) were orthogonally manipulated. Subsequently, students' on-line semantic processing was assessed by measuring the N400 cloze effect, a component in the EEG signal of which the amplitude is associated with semantic processing. Within the low performance-expectation condition, no effect of anticipated feedback on semantic processing was found. Within the no-performance-expectation condition, participants anticipating self-referential feedback showed a more widely distributed N400 cloze effect than participants anticipating normative feedback. The results confirmed the hypothesis that the mere expectation of a particular type of feedback can affect students' semantic processes.

Previous work has shown that individual differences in executive function (EF) are predictive of academic skills in preschoolers, kindergartners, and older children. Across studies, EF is a stronger predictor of emergent mathematics than literacy. However, research on EF in children below age three is scarce, and it is currently unknown whether EF, as assessed in toddlerhood, predicts emergent academic skills a few years later. This longitudinal study investigates whether early EF, assessed at two years, predicts (emergent) academic skills, at five years. It examines, furthermore, whether early EF is a significantly stronger predictor of emergent mathematics than of emergent literacy, as has been found in previous work on older children. A sample of 552 children was assessed on various EF and EF-precursor tasks at two years. At age five, these children performed several emergent mathematics and literacy tasks. Structural Equation Modeling was used to investigate the relationships between early EF and academic skills, modeled as latent factors. Results showed that early EF at age two was a significant and relatively strong predictor of both emergent mathematics and literacy at age five, after controlling for receptive vocabulary, parental education, and home language. Predictive relations were significantly stronger for mathematics than literacy, but only when a verbal short-term memory measure was left out as an indicator to the latent early EF construct. These findings show that individual differences in emergent academic skills just prior to entry into the formal education system can be traced back to individual differences in early EF in toddlerhood. In addition, these results highlight the importance of task selection when assessing early EF as a predictor of later outcomes, and call for further studies to elucidate the mechanisms through which individual differences in early EF and precursors to EF come about.

The present study investigated the measurement properties of the Classroom Assessment Scoring System (CLASS) Toddler using data from 276 classrooms and 375 teachers in Dutch early childhood education and care provisions. First, confirmatory factor analyses based on the CLASS Toddler indicators confirmed the eight-dimension structure of the instrument. Second, a three-domain structure, involving Emotional Support, Behavioral Support and Engaged Support for Learning, fitted the data better than the commonly found two-domain structure that combines Emotional and Behavioral Support into one domain. Third, using Item Response Theory (IRT), we found good item difficulty and discrimination parameters of the CLASS Toddler indicators. Finally, significant associations were found between the CLASS Toddler domains and children-to-staff ratio, teachers' work experience and provided play and literacy activities, supporting the criterion validity of the instrument. Taken together, these results showed adequate measurement quality of the CLASS Toddler. Implications for practice are discussed.

Previous studies have shown effects of bilingualism on inhibitory control in preschool children. However, these effects only held for ‘conflict tasks’, and not delay of gratification tasks, and other domains of executive functioning were not investigated. For older children, previous studies have found relationships between bilinguals’ advantages and home language environment. This study investigates effects of bilingualism and bilingual home language environment on executive functioning in three-year-old children. 200 bilingual and 829 monolingual three-year-olds performed tasks of inhibitory control, working memory, and selective attention. Home language environment characteristics were assessed through a parental questionnaire. The bilinguals outperformed the monolinguals on a conflict task only, and this effect was very small. Further analyses showed broader effects on inhibitory control that were related to home language environment: Bilinguals whose parents spoke different languages outperformed bilinguals whose parents spoke the same language on both the conflict task and a delay of gratification task.

Recent empirical evidence demonstrates relationships between motor and language development that are partially mediated by exploration. This is in line with the embodied cognition approach to development that views language as grounded in real-life sensorimotor interactions with the environment. This view implies that the relations between motor and linguistic skills should be specific. Moreover, as motor development initially changes the possibilities children have to explore the environment, initial relations between motor and linguistic skills should become weaker over time. Empirical evidence pertaining to the duration and specificity of these relations is still lacking. The current study investigated longitudinal relations between attainment of walking and the development of several linguistic skills, and tested whether exploration through self-locomotion mediated these relations. Linguistic skills were measured at age 43 months, which is later than the age used in previous studies. Three hypotheses were tested: (1) the relations between walking and language found at younger ages will decrease over time (2) exploration through self-locomotion will remain an important predictor of spatial language (3) no relation will be found between walking, exploration and the use of grammatical and lexical categories and between exploration and general vocabulary. Thirty-one Dutch children took part in a longitudinal study. Parents reported about age of attainment of walking. Exploration through self-locomotion was measured using observations of play with a standard set of toys at age 20 months. Receptive vocabulary, spatial language and use of grammatical and lexical categories were measured at age 43 months using (standard) tests. Results reveal that age of walking does not directly predict spatial language at age 43 months. Exploration through self-locomotion does significantly and completely mediate the indirect effect of age of walking on spatial language. Moreover, neither age of walking nor exploration predict general vocabulary and the use of grammatical and lexical categories. Results support the idea that the initial relations between motor development and linguistic skills decrease over time and that these relations are specific and intrinsically dependent on the information children pick up through the execution of specific motor activities.

Previous studies show that verbal short-term memory (VSTM) is related to vocabulary learning, whereas verbal working memory (VWM) is related to grammar learning in children learning a second language (L2) in the classroom. In this study, we investigated whether the same relationships apply to children learning an L2 in a naturalistic setting and to monolingual children. We also investigated whether relationships with verbal memory differ depending on the type of grammar skill investigated (i.e., morphology vs. syntax). Participants were 63 Turkish children who learned Dutch as an L2 and 45 Dutch monolingual children (mean age = 5 years). Children completed a series of VSTM and VWM tasks, a Dutch vocabulary task, and a Dutch grammar task. A confirmatory factor analysis showed that VSTM and VWM represented two separate latent factors in both groups. Structural equation modeling showed that VSTM, treated as a latent factor, significantly predicted vocabulary and grammar. VWM, treated as a latent factor, predicted only grammar. Both memory factors were significantly related to the acquisition of morphology and syntax. There were no differences between the two groups. These results show that (a) VSTM and VWM are differentially associated with language learning and (b) the same memory mechanisms are employed for learning vocabulary and grammar in L1 children and in L2 children who learn their L2 naturalistically.

High amounts of early child care have sometimes been linked to higher levels of behaviour problems, while high-quality child care has more often been related to fewer behaviour problems and more social competence. The current study investigated whether the level of centre emotional and behavioural support (child care quality) interacted with the amount of child care in predicting children's socio-emotional behaviour. Participants were 417 children (mean age = 27 months) from 61 Dutch daycare centres. The amount of daycare ranged from 1 to 5 days per week (M = 2.3 days). Multi-level analyses showed that, independent of the amount of daycare, high levels of centre emotional and behavioural support were related to more caregiver-rated social competence 1 year later. In addition, children spending 3.5 days or more in highly supportive daycare centres showed the lowest levels of parent-rated externalizing behaviour 1 year later. The findings emphasize (a) that the combined effects of the amount and quality of child care are important and (b) that high-quality early child care is related to children's socio-emotional development. Further policy, practice, and research implications are discussed. Highlights: We studied in a Dutch sample how the amount and quality of daycare interacted in relation to children's socio-emotional outcomes. High levels of daycare quality were related to more teacher-rated social competence. Children spending 3.5 days or more in highly supportive daycare centers showed less parent-rated externalizing behavior.

Within a perception-action framework, exploration is seen as a driving force in young children's development. Through exploration, children become skilled in perceiving the affordances in their environment and acting on them. Using a perception-action framework, the current study examined the development of children's exploration of the spatial-relational properties of objects such as the possibility of containing or stacking. A total of 61 children, belonging to two age cohorts, were followed from 9 to 24 months and from 20 to 36 months of age, respectively. Exploration of a standard set of objects was observed in five home visits in each cohort conducted every 4 months. A cohort-sequential augmented growth model for categorical data, incorporating assumptions of item response theory, was constructed that fitted the data well, showing that the development of exploration of spatial-relational object properties follows an overlapping waves pattern. This is in line with Siegler's model (Emerging Minds, 1996), which suggested that skill development can be seen as ebbing and flowing of alternative (simple and advanced) behaviors. Although the probability of observing the more complex forms of exploration increased with age, the simpler forms did not disappear altogether but only became less probable. Findings support a perception-action view on development. Individual differences in observed exploration and their relations with other variables, as well as future directions for research, are discussed.

In this article, the concept of "media lifestyles" is adopted in order to develop a comprehensive approach toward youth engagement in communication media. We explore how 503 Dutch eighth grade students with full access to new technology combine a broad range of media by focusing on their engagement with media while taking various contexts of use into account. Four different media lifestyles of media omnivores, networkers, gamers, and low-frequency users are described. Furthermore, we show how the methodology we used is able to provide more insight into how the distinguished media lifestyles were codetermined by particular media, functions and social contexts. Finally, the implications for the Uses & Gratifications theory are discussed.

We present a large-scale study of a series of seven lessons designed to help young children learn english vocabulary as a foreign language using a social robot. The experiment was designed to investigate 1) the effectiveness of a social robot teaching children new words over the course of multiple interactions (supported by a tablet), 2) the added benefit of a robot's iconic gestures on word learning and retention, and 3) the effect of learning from a robot tutor accompanied by a tablet versus learning from a tablet application alone. For reasons of transparency, the research questions, hypotheses and methods were preregistered. With a sample size of 194 children, our study was statistically well-powered. Our findings demonstrate that children are able to acquire and retain English vocabulary words taught by a robot tutor to a similar extent as when they are taught by a tablet application. In addition, we found no beneficial effect of a robot's iconic gestures on learning gains., European Union's Horizon 2020 Research and Innovation Programme; European Union (European Union); Horizon 2020