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Screen media are increasingly shaping our everyday lives, including those of young children. Among other reasons, parents might use screen media as a problem-oriented coping strategy to reduce parenting stress levels. Furthermore, parental attitudes towards children's screen media use have been shown to predict screen time in young children. The present study examines the intertwined roles of parenting stress and parental attitudes to children's screen time throughout early childhood. Parents of N = 462 children aged up to 3 years (M = 1.28, SD = 0.61; 50% female) participated in four assessments within 10 months. Parents reported their level of parenting stress, their attitudes toward young children's screen media use, and their child's screen time at each assessment. Across all measurement time points, results indicated that both parenting stress and positive parental attitudes are positively associated with children's screen time. Furthermore, parental attitudes were found to strengthen the link between stress and children's screen time at two of the four measurement time points. Recommendations for children's screen time should consider parental stress and suggest alternative strategies for coping with parenting stress. • Parenting stress was positively associated with young children's screen time. • Positive parental attitudes toward young children's screen media use were positively associated with children's screen time. • Parental attitudes partly strengthened the link between parenting stress and young children's screen time. [ABSTRACT FROM AUTHOR]

Two longitudinal extensions of the classic internal/external frame of reference model (I/EM) have attracted researchers' attention in recent years: The reciprocal I/EM (RI/EM) describes the reciprocal effects between students' math and verbal achievements and self-concepts. The 2I/EM describes the effects of students' math and verbal achievement levels and changes on their math and verbal self-concepts. The present research integrates these 2 approaches into the reciprocal 2I/EM (R2I/EM), which describes the effects of students' math and verbal achievement levels and changes on their math and verbal self-concepts and the effects of their math and verbal self-concept levels and changes on their math and verbal achievements. We tested this model in 3 empirical studies, including about 6,000 students between Grade 4 and Grade 11 from Germany, Switzerland, and Belgium, using grades and test scores as achievement indicators. Overall, we found strong support for the R2I/EM. In line with prior 2I/EM studies, students' achievement levels showed positive (negative) effects on their self-concepts within (between) subjects. The effects of students' achievement changes on their self-concepts within (between) subjects were usually positive (near 0). In line with prior RI/EM studies, students' self-concept levels showed positive (negative or near 0) effects on their achievements within (between) subjects. For the first time, we also examined the effects of students' self-concept changes on their achievements: These effects were usually positive (positive or near 0) within (between) subjects. Our findings have important theoretical and practical implications for the I/E model literature and for teachers aiming to foster their students' self-concepts and achievements. Educational Impact and Implications Statement: Previous research has shown that students' subject-specific self-concepts are formed by the joint operation of three comparison processes: social comparisons (where students compare their achievements with their classmates' achievements), dimensional comparisons (where students compare their own achievements in different subjects), and temporal comparisons (where students compare their own achievements across time). The findings of the present research suggest that students conduct comparisons not only of their subject-specific achievements, but also of their subject-specific self-concepts, with resulting effects on their subsequent achievements: In particular, we found positive effects of changes in students' self-concept in one subject (i.e., temporal comparisons of self-concepts) on their subsequent achievements in the same and other subjects. This finding is of particular practical importance, as it demonstrates that teachers can help students enhance their achievements in different subjects via impacting on their self-perceptions (i.e., fostering students' self-concepts and supporting students to become aware of increases in their self-concepts). [ABSTRACT FROM AUTHOR]

The quality of a best friendship provides information about how developmentally beneficial it is. However, little is known about possible early risk factors that influence later friendship quality. The present study examined the role of family risks and social-emotional problems (behavioral problems, peer problems, anxious, and depressive symptoms) in early childhood for positive (i.e., support and help) and negative (i.e., conflicts and betrayal) dimensions of friendship quality with their best friend in preadolescence. 293 children (47.9% female) aged 2–4, their parents and teachers participated in the study with three measurement occasions (T1; Mage = 2.81, T2; Mage = 3.76, T3; Mage = 9.69). The last measurement occasion was at the age of 9–11 years. Results of the longitudinal regression model showed that depressive symptoms in early childhood were associated with a lower positive dimension of friendship quality in preadolescence. In contrast, early anxious symptoms were related to a higher positive dimension of friendship quality six years later. Neither family risks, nor behavioral problems and peer problems in early childhood were linked to the positive dimension of friendship quality in preadolescence. No early predictors were found for the negative dimension of friendship quality. Possible reasons for the lack of associations are discussed. Findings suggest that children with early depressive symptoms at 3–5 years of age should be the targets of potential interventions to form high quality friendships in preadolescence. Possible interventions are mentioned. [ABSTRACT FROM AUTHOR]

The present longitudinal study examined the reliability of self-reported academic grades across three phases in four subject domains for a sample of 916 high-school students. Self-reported grades were found to be highly positively correlated with actual grades in all academic subjects and across grades 9 to 11 underscoring the reliability of self-reported grades as an achievement indicator. Reliability of self-reported grades was found to differ across subject areas (e.g., mathematics self-reports more reliable than language studies), with a slight yet consistent tendency to over-report achievement levels also observed across grade levels and academic subjects. Overall, the absolute value of over- and underreporting was low and these patterns were not found to differ between mathematics and verbal subjects. In sum, study findings demonstrate the consistent predictive utility of students’ self-reported achievement across grade levels and subject areas with the observed tendency to over-report academic grades and slight differences between domains nonetheless warranting consideration in future education research. [ABSTRACT FROM AUTHOR]

Peer victimization has been identified as a risk factor for depressive symptoms. The current study investigated the longitudinal interplay among social support, peer victimization and depressive symptoms in early adolescence. We specifically investigated the promotive and protective role of parental and friendship support on the longitudinal relationship between victimization and depressive symptoms. A total of 960 Swiss adolescents (49% female, M 13.2 years) completed an electronic questionnaire four times, with 6-month intervals. Trivariate cross-lagged models with latent longitudinal moderations were computed. The analyses confirmed that peer victimization was positively associated with changes in depressive symptoms, and depressive symptoms were positively associated with changes in victimization. Furthermore, bidirectional longitudinal associations between both parental and friendship support and depressive symptoms were found, while neither parental nor friendship support was found to be longitudinally associated with peer victimization. Further, neither parental nor friendship support moderated the longitudinal relationship between victimization and depressive symptoms. Thus, the present results suggested that parental and friendship support were promotive factors for adolescents' well-being, while neither parental, nor friendship support buffered the effect of victimization on depressive symptoms, thereby yielding no evidence for their longitudinal protective effect. [ABSTRACT FROM AUTHOR]

This study examined the short- and long-term effects of self-enhancement (i.e., overreporting of academic grades) on academic self-concept and academic achievement. A total of 916, 719, and 647 students participated in the first, second, and third waves of assessment, respectively (mean age at T1 = 15.6 years). At each assessment, students reported their last midterm grades and their self-concepts in mathematics, German, English, and French. Actual midterm grades were obtained from the school administrations. Results showed that self-enhancement was positively associated with self-concept in the short term. However, in the long term, self-enhancement was directly associated with stronger decreases in self-concept and indirectly with stronger decreases in achievement that were linked to inflated self-concepts. Implications for research and educational practice are discussed. [ABSTRACT FROM AUTHOR]

Mental abilities and physical growth are important determinants of health across the lifespan. Here, the stability of these traits was assessed from 6 months to 65 years of age to investigate periods of stability and malleability. Mental abilities, height, and weight were assessed at 11 time-points in participants of the Zurich Longitudinal Studies. Individuals with more than three missing data points per trait across the 11 assessment time-points (i.e., more than approx. 25% missing data) were excluded from further analyses (final N = 281). Bivariate cross-time correlations showed that the stability of mental abilities was low in infancy and gradually increased. The stability of growth measures was uniform across development, with height being highly stable and weight moderately so. When a latent model was used, the overall stability of mental abilities approached that of weight. The findings indicate that stability and malleability across development differ between mental abilities and growth measures. This requires consideration in interventions targeting these traits as facilitators for improving health outcomes. • Long-term stability patterns are different for mental abilities and growth measures. • The stability of mental abilities is low in infancy and increases across development. • The stability of height is high and uniform from 6 months to 65 years of age. • The stability of weight mirrors the pattern of height on a lower level. [ABSTRACT FROM AUTHOR]

The present study examined the associations between grades and self-concept within and between four academic domains from an intraindividual perspective. Further, we explored whether students' subjective domain similarity moderated intraindividual between-domain effects of achievement on self-concept and vice versa. A sample of 756 Swiss high-school students reported on their academic self-concept in mathematics, German (native), English, and French on three measurement occasions across high school. Students reported on the subjective domain similarity. School administrators reported students' grades. Achievement in one domain had a positive effect on self-concept within the same domain and a negative effect on cuncurrent and later self-concept in other domains. Conversely, self-concept in one domain had a positive effect on achievement in the same domain and a negative effect on cuncurrent and later achievement in other domains. Further, subjective domain similarity attenuated the negative effect of achievement in one domain on self-concepts in another domain on the same measurement occasions. However, subjective domain similarity was not found to moderate the effect of achievement in one domain on change in self-concepts in another domain or vice versa. Academic achievement leads to a better academic self-concept within a given domain (e.g., mathematics) and vice-versa. However, higher achievement in one domain (e.g., mathematics) can lead to worse self-concept in another domain (e.g., first language). The present study shows that between domain effects of achievement on self-concept might be more pronounced if the student that is evaluating her/his self-concept in the two domains perceives the two domains at hand as different rather than similar. Accordingly, teachers might want to make the similarities and links between different academic domains more visible to students to avoid negative effects of positive feedback in one domain on self-concept in other domains. • Within a domain, academic achievement is positively linked to changes in academic self-concept and vice-versa. • Between domains, academic achievement is negatively linked to changes in academic self-concept and vice-versa. • Subjective domain similarity reduces the effect of achievement on self-concept over a few months, but not over a year. • Subjective domain similarity is unrelated to between domain effects of self-concept on achievement. [ABSTRACT FROM AUTHOR]

The research presented in this paper examined the relationships between academic procrastination and learning-specific emotions, and how these variables predict one another over time among undergraduate (n = 354) and graduate students (n = 816). Beyond findings showing expected valences of relations between procrastination and positive emotions (enjoyment, hope, and pride) and negative emotions (anger, anxiety, shame, hopelessness, boredom, and guilt), autoregressive cross-lagged panel analyses showed various directional relations between procrastination and emotions over time. More precisely, specific emotions were found to influence procrastination (e.g., undergraduates: anxiety; graduate students: hope), procrastination was found to influence specific emotions (e.g., undergraduates: guilt; graduate students: boredom), and bidirectional relations between procrastination and learning-related emotions were also observed (e.g., graduate students: enjoyment, anxiety, and guilt). Implications for future research on academic procrastination and remedial procrastination interventions for students are discussed. [ABSTRACT FROM AUTHOR]

Theories on the link between achievement goals and achievement emotions focus on their within-person functional relationship (i.e., intraindividual relations). However, empirical studies have failed to analyze these intraindividual relations and have instead examined between-person covariation of the two constructs (i.e., interindividual relations). Aiming to better connect theory and empirical research, the present study ( N = 120 10th grade students) analyzed intraindividual relations by assessing students' state goals and emotions using experience sampling ( N = 1409 assessments within persons). In order to replicate previous findings on interindividual relations, students' trait goals and emotions were assessed using self-report questionnaires. Despite being statistically independent, both types of relations were consistent with theoretical expectations, as shown by multi-level modeling: Mastery goals were positive predictors of enjoyment and negative predictors of boredom and anger; performance-approach goals were positive predictors of pride; and performance-avoidance goals were positive predictors of anxiety and shame. Reasons for the convergence of intra- and interindividual findings, directions for future research, and implications for educational practice are discussed. [ABSTRACT FROM AUTHOR]

The present study investigated the longitudinal association between the development of bullying (traditional bullying and cyberbullying) and the development of moral deficiencies (moral disengagement, low moral responsibility, and weak feelings of remorse) during adolescence. A total of 960 Swiss adolescents completed an electronic questionnaire in schools four times, with 6-month intervals. Results of a parallel process model showed that the initial levels of moral deficiencies were positively associated with initial scores of bullying. Furthermore, the initial levels of moral deficiencies were positively associated with the development of bullying (i.e., initial trend and changes in trend across time). In contrast, the initial level of bullying was not found to be associated with the development (i.e., the slope) of moral deficiencies. Accordingly, we conclude that moral deficiencies might be a trait that predicts the development of bullying and not vice versa. Implications of the findings for bullying prevention are discussed. [ABSTRACT FROM AUTHOR]

Cyberbullying, a modern form of bullying performed using electronic forms of contact (e.g., SMS, MMS, Facebook, YouTube), has been considered as being worse than traditional bullying in its consequences for the victim. This difference was mainly attributed to some specific aspect that are believed to distinguish cyberbullying from traditional bullying: an increased potential for a large audience, an increased potential for anonymous bullying, lower levels of direct feedback, decreased time and space limits, and lower levels of supervision. The present studies investigated the relative importance of medium (traditional vs. cyber), publicity (public vs. private), and bully's anonymity (anonymous vs. not anonymous) for the perceived severity of hypothetical bullying scenarios among a sample of Swiss seventh- and eight-graders (study 1: 49 % female, mean age = 13.7; study 2: 49 % female, mean age = 14.2). Participants ranked a set of hypothetical bullying scenarios from the most severe one to the least severe one. The scenarios were experimentally manipulated based on the aspect of medium and publicity (study 1), and medium and anonymity (study 2). Results showed that public scenarios were perceived as worse than private ones, and that anonymous scenarios were perceived as worse than not anonymous ones. Cyber scenarios generally were perceived as worse than traditional ones, although effect sizes were found to be small. These results suggest that the role of medium is secondary to the role of publicity and anonymity when it comes to evaluating bullying severity. Therefore, cyberbullying is not a priori perceived as worse than traditional bullying. Implications of the results for cyberbullying prevention and intervention are discussed. [ABSTRACT FROM AUTHOR]

ABSTRACT Cyberbullying has emerged as a new form of antisocial behaviour in the context of online communication over the last decade. The present study investigates potential longitudinal risk factors for cyberbullying. A total of 835 Swiss seventh graders participated in a short-term longitudinal study (two assessments 6 months apart). Students reported on the frequency of cyberbullying, traditional bullying, rule-breaking behaviour, cybervictimisation, traditional victimisation, and frequency of online communication (interpersonal characteristics). In addition, we assessed moral disengagement, empathic concern, and global self-esteem (intrapersonal characteristics). Results showed that traditional bullying, rule-breaking behaviour, and frequency of online communication are longitudinal risk factors for involvement in cyberbullying as a bully. Thus, cyberbullying is strongly linked to real-world antisocial behaviours. Frequent online communication may be seen as an exposure factor that increases the likelihood of engaging in cyberbullying. In contrast, experiences of victimisation and intrapersonal characteristics were not found to increase the longitudinal risk for cyberbullying over and above antisocial behaviour and frequency of online communication. Implications of the findings for the prevention of cyberbullying are discussed. Copyright © 2012 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Background: Early negative life events (NLE) have long‐lasting influences on neurodevelopment and psychopathology. Reduced orbitofrontal cortex (OFC) thickness was frequently associated with NLE and depressive symptoms. OFC thinning might mediate the effect of NLE on depressive symptoms, although few longitudinal studies exist. Using a complete longitudinal design with four time points, we examined whether NLE during childhood and early adolescence predict depressive symptoms in young adulthood through accelerated OFC thinning across adolescence. Methods: We acquired structural MRI from 321 participants at two sites across four time points from ages 14 to 22. We measured NLE with the Life Events Questionnaire at the first time point and depressive symptoms with the Center for Epidemiologic Studies Depression Scale at the fourth time point. Modeling latent growth curves, we tested whether OFC thinning mediates the effect of NLE on depressive symptoms. Results: A higher burden of NLE, a thicker OFC at the age of 14, and an accelerated OFC thinning across adolescence predicted young adults' depressive symptoms. We did not identify an effect of NLE on OFC thickness nor OFC thickness mediating effects of NLE on depressive symptoms. Conclusions: Using a complete longitudinal design with four waves, we show that NLE in childhood and early adolescence predict depressive symptoms in the long term. Results indicate that an accelerated OFC thinning may precede depressive symptoms. Assessment of early additionally to acute NLEs and neurodevelopment may be warranted in clinical settings to identify risk factors for depression. [ABSTRACT FROM AUTHOR]

Adolescent subcortical structural brain development might underlie psychopathological symptoms, which often emerge in adolescence. At the same time, sex differences exist in psychopathology, which might be mirrored in underlying sex differences in structural development. However, previous studies showed inconsistencies in subcortical trajectories and potential sex differences. Therefore, we aimed to investigate the subcortical structural trajectories and their sex differences across adolescence using for the first time a single cohort design, the same quality control procedure, software, and a general additive mixed modeling approach. We investigated two large European sites from ages 14 to 24 with 503 participants and 1408 total scans from France and Germany as part of the IMAGEN project including four waves of data acquisition. We found significantly larger volumes in males versus females in both sites and across all seven subcortical regions. Sex differences in age‐related trajectories were observed across all regions in both sites. Our findings provide further evidence of sex differences in longitudinal adolescent brain development of subcortical regions and thus might eventually support the relationship of underlying brain development and different adolescent psychopathology in boys and girls. [ABSTRACT FROM AUTHOR]

The quality of social pretend play may have a positive impact on children's development. This study investigated to what degree this quality is a characteristic of a child versus a function of the play partner or the specific pairing of two children. For this purpose, preschool children's general pretend play quality (actor effect), their general influence on their play partner's pretend play quality (partner effect) and the role of the specific constellation between two children (relationship effect) were examined in a dyadic setting. Potential associations of the effects with children's age, gender, social cognitive and social competencies, as well as the dyadic composition of these variables and their friendship were examined. Children completed two to four dyadic pretend play situations with different peers. They were tested for their language ability, theory of mind and emotion understanding. Educators rated children's social competence (cooperation and sociability) and evaluated their friendship with one another. A social relations model analysis was conducted. The results indicated that children's pretend play quality was determined to the same degree by the child and by the specific pairing of two children. Positive associations were found between children's pretend play quality and age, emotion understanding and sociability on the individual level. Further, the quality of children's social pretend play benefited from having older and more advanced play partners. [ABSTRACT FROM AUTHOR]

Our work draws upon Foucault's idea that the order of things, defined as the way we categorise our world, matters for how we think about the world and ourselves. Specifically, and drawing upon Pekrun's control-value theory, we focus on the question of whether the way we individually order our world into categories influences how we think about our typically experienced emotions related to these categories. To investigate this phenomenon, we used a globally accessible example, namely, the categorisation of knowledge based on school subjects. In a longitudinal sample of high school students (grades 9–11), we found that judging academic domains as similar led to judging typical emotions related to those domains as more similar than experienced in real life (assessed via real-time assessment of emotions). Our study thus shows that the order of things matters in how we think we feel with respect to those things. [ABSTRACT FROM AUTHOR]

• Social pretend play tutoring fosters preschool children's social behavior skills. • Social pretend play tutoring fosters preschooler's positive peer relationships. • Social pretend play tutoring does not foster preschooler's social-cognitive skills. • Social pretend play tutoring does not foster preschooler's social-emotional skills. • High-quality social pretend play seems to foster children's social behavioral development. This controlled intervention study with a pre-test, post-test, and follow-up design investigated whether promoting children's social pretend play quality fosters their social development. Twenty-seven Swiss playgroups (N = 211 children, age: M = 43.3 months, SD = 6.5, with a median of 7 children per group) were randomly assigned to one of three experimental conditions: Play tutoring, provision of role play material, or control. Standardized tests and educator questionnaires were used to assess children's social pretend play competence and social-cognitive, emotional and social skills as well as their peer relationship quality. Latent change models indicated that children's social pretend play competence, behavioral skills, and positive peer relationships as reported by their educators increased most strongly for children in the play tutoring condition. No significant intervention effects emerged regarding children's social-cognitive or emotional skills. The results show that actively promoting children's social pretend play quality also fosters their social behavior and peer relationships. [ABSTRACT FROM AUTHOR]

Social dilemmas are characterized by conflicts between immediate self-interest and long-term collective goals. Although such conflicts lie at the heart of various challenging social interactions, we know little about how cooperation in these situations develops. To extend work on social dilemmas to child and adolescent samples, we developed an age-appropriate computer task (the Pizzagame) with the structural features of a public goods game (PGG). We administered the Pizzagame to a sample of 191 children 9 to 16 years of age. Subjects were led to believe they were playing the game over the Internet with three sets of two same-aged, same-sex co-players. In fact, the co-players were computer-generated and programmed to expose children to three consecutive conditions: (1) a cooperative strategy, (2) a selfish strategy, and (3) divergent cooperative-selfish strategies. Supporting the validity of the Pizzagame, our results revealed that children and adolescents displayed conditional cooperation, such that their contributions rose with the increasing cooperativeness of their co-players. Age and gender did not influence children and adolescents' cooperative behavior within each condition. However, older children adapted their behavior more flexibly between conditions to parallel the strategies of their co-players. These results support the utility of the Pizzagame as a feasible, reliable, and valid instrument for assessing and quantifying child and adolescent cooperative behavior. Moreover, these findings extend previous work showing that age influences cooperative behavior in the PGG. [ABSTRACT FROM AUTHOR]

Training studies have shown the positive effects of play tutoring on children's social skills. This study investigates whether the theoretically suggested mechanism of change—social pretend play quality—explains the effect of play tutoring on social pretend play competence and social skills. Twenty-seven Swiss playgroups (N = 214 three- to four-year-olds) participated in a randomized intervention study with three conditions: the intervention group (play tutoring), the material group (half-dose), and the control group (treatment as usual). Weekly treatment sessions took place for six consecutive weeks. Pre-tests, post-tests, and a follow-up were made. Playgroup educators reported on children's pretend play competence and social skills using a questionnaire. Children's pretend play quality during treatment sessions was assessed by standardized behavioral observations. Using latent change models with indirect effects, we investigated whether the intervention effects of play tutoring on children's pretend play competence and social skills are mediated by their social pretend play quality shown during the intervention sessions. The results indicate mediating effects of social pretend play quality on children's change in social pretend play competence and self-oriented social skills (sociability and setting limits). The study supports social pretend play as a beneficial ground to promote social development but also indicates a more complex interplay of different change mechanisms. [ABSTRACT FROM AUTHOR]

This study aimed to examine developmental relations of screen time, negative affect and effortful control in children aged 12–36 months. Parents of 462 children up to 3 years of age at the start of the study (M = 1.28 years, SD = 0.61; 50% female) participated in four assessments within 10 months. Parents reported their children's screen time, negative affect, and effortful control at each assessment in a diary study. Results of multivariate Bayesian multilevel growth modeling revealed correlations between growth parameters of (1) children's screen time and their negative affect and (2) children's negative affect and their effortful control but not between growth parameters of (3) children's screen time and their effortful control. Overall, these results indicate that children's screen time may be associated with their negative affect independently of their effortful control. Hence, we found no evidence of displacement in the development of self-regulatory strategies in children of parents with higher levels of education. Future research on this topic should focus on children's excessive screen media use, considering contextual and content-related screen media factors and other factors in the child's immediate and broader environment. • Growth parameters of children's screen time and negative affect were related. • Growth parameters of children's negative affect and effortful control were related. • Growth parameters of children's screen time and effortful control were not related. • Screen time may relate to negative affect independently of effortful control in young children. • No evidence of displacement in self-regulatory development in young children of higher-educated parents was found. [ABSTRACT FROM AUTHOR]

This longitudinal study investigated whether cybervictimisation is an additional risk factor for depressive symptoms over and beyond traditional victimisation in adolescents. Furthermore, it explored whether certain coping strategies moderate the impact of cybervictimisation on depressive symptoms. A total of 765 Swiss seventh graders (mean age at time-point 1 (t1) = 13.18 years) reported on the frequency of traditional and cybervictimisation, and of depressive symptoms twice in six months. At time-point 2 (t2) students also completed a questionnaire on coping strategies in response to a hypothetical cyberbullying scenario. Analyses showed that both traditional and cybervictimisation were associated with higher levels of depressive symptoms. Cybervictimisation also predicted increases in depressive symptoms over time. Regarding coping strategies, it was found that helpless reactions were positively associated with depressive symptoms. Moreover, support seeking from peers and family showed a significant buffering effect: cybervictims who recommended seeking close support showed lower levels of depressive symptoms at t2. In contrast, cybervictims recommending assertive coping strategies showed higher levels of depressive symptoms at t2. [ABSTRACT FROM AUTHOR]

Attachment theory proposes that children's representations of interactions with caregivers guide information‐processing about others, bridging interpersonal domains. In a longitudinal study (N = 165), preschoolers (Mage = 5.19 years) completed the MacArthur Story Stem Battery to assess parent representations. At school‐age (Mage = 8.42 years), children played a virtual ballgame with peers who eventually excluded them to track event‐related cardiac slowing, a physiological correlate of rejection, especially when unexpected. At both ages, parents and teachers reported on peer and emotional problems. During exclusion versus inclusion‐related events, cardiac slowing was associated with greater positive parent representations and fewer emerging peer problems. Cardiac slowing served as a mediator between positive parent representations and peer problems, supporting a potential psychophysiological mechanism underlying the generalization of attachment‐related representations to peer relationships. [ABSTRACT FROM AUTHOR]

The present study investigated whether teacher beliefs (self-efficacy and attitudes) mediate the impact of professional background on child-centred educational practice. We specifically investigated whether teacher beliefs related to self (self-efficacy) are a stronger predictor of educational practice than teacher beliefs related to teaching approach (attitudes). A total of 265 professionals from different early education and care settings (i.e., centre-based daycare, family-based daycare, and educational playgroups) in Switzerland participated in the study. A self-report questionnaire was developed to assess professionals' self-efficacy, attitudes and educational practice in terms of child-centredness. The results confirm the factorial validity of the questionnaire. Self-efficacy positively predicted educational practice, while professionals' attitudes were not associated with educational practice. Further, the positive effect of domain-specific knowledge on educational practice was mediated by self-efficacy. Finally, family daycare providers reported lower self-efficacy and lower levels of child-centred educational practice than other professionals. The present study emphasises the role of professionals' self-efficacy in the context of delivering high-quality childcare and child-centred education in early childhood. The results suggest that promoting knowledge of teaching approaches may be a promising way to promote early childhood educators' child-centred educational practice through increasing their self-efficacy. [ABSTRACT FROM AUTHOR]

Human cooperative behavior has long been thought to decline under adversity. However, studies have primarily examined perceived patterns of cooperation, with little eye to actual cooperative behavior embedded within social interaction. Game‐theoretical paradigms can help close this gap by unpacking subtle differences in how cooperation unfolds during initial encounters. This study is the first to use a child‐appropriate, virtual, public goods game to study actual cooperative behavior in 329 participants aged 9–16 years with histories of maltreatment (n = 99) and no maltreatment (n = 230) while controlling for psychiatric symptoms. Unlike work on perceived patterns of cooperation, we found that maltreated participants actually contribute more resources to a public good during peer interaction than their nonmaltreated counterparts. This effect was robust when controlling for psychiatric symptoms and peer problems as well as demographic variables. We conclude that maltreatment may engender a hyper‐cooperative strategy to minimize the odds of hostility and preserve positive interaction during initial encounters. This, however, comes at the cost of potential exploitation by others. [ABSTRACT FROM AUTHOR]