1,720,992 research outputs found
Understanding Meta-Analysis Through Data Simulation With Applications to Power Analysis
Full text linkMeta-analysis is a powerful tool to combine evidence from existing literature. Despite several introductory and advanced materials about organizing, conducting, and reporting a meta-analysis, to our knowledge, there are no introductive materials about simulating the most common meta-analysis models. Data simulation is essential for developing and validating new statistical models and procedures. Furthermore, data simulation is a powerful educational tool for understanding a statistical method. In this tutorial, we show how to simulate equal-effects, random-effects, and metaregression models and illustrate how to estimate statistical power. Simulations for multilevel and multivariate models are available in the Supplemental Material available online. All materials associated with this article can be accessed on OSF (https://osf.io/54djn/)
Data and supplemental material of the paper “Effectiveness of digital-based interventions for children with mathematical learning difficulties: A meta-analysis”
Full text linkData and supplement material of the article “Effectiveness of digital-based interventions for children with mathematical learning difficulties: A meta-analysis” (Benavides-Varela et al.) [1] are presented. Data were collected from studies included in the meta-analysis to evaluate the effects of digital-based interventions for children with mathematical learning difficulties compared to control conditions in group-designed randomized controlled trials. Literature search, inclusion criteria and coding procedure are described. PRISMA flow-chart is reported to summarize the literature search and coding of all the relevant characteristics of the primary studies is made available. This allows other researchers to easily access to the information needed to evaluate the studies and to use these data in future meta-analyses. However, researchers are highly recommended to refer to the original papers in order to check studies suitability to their own criteria. Moreover, in the supplemental material all the information needed to reproduce the meta-analysis results is reported together with the R code syntax. Data and supplemental material are available online (https://osf.io/ajdnv/)
Psychological adaptation among second-generation Moroccan adolescents: associations with sense of community and country of residence
No full textIncreasing evidence suggests that immigrant youths’ social integration varies widely across national contexts, but the factors explaining this variation at the individual and societal levels are still under debate. Drawing upon developmental and community psychology approaches, the current study aimed to investigate psychological adaptation in terms of life satisfaction, self-esteem, and psychological problems among second-generation Moroccan adolescents and their national peers in the Netherlands and Italy. Furthermore, we examined the role of sense of community (SoC) in these youths’ outcomes. Participants were 90 Moroccan-origin and 208 national adolescents aged between 17 and 20 years, who completed a questionnaire survey. Results indicated that life satisfaction was overall higher in the Netherlands than in Italy. Moreover, Moroccan and Dutch youth reported similar levels of self-esteem and psychological problems, whereas Italian youths fared less well than their Moroccan peers. The positive association between SoC and life satisfaction was stronger for Moroccan adolescents in both countries; SoC was related to higher self-esteem and fewer psychological problems, but only in Italy. The findings suggest that characteristics of the host society are crucial for the psychological adjustment of second-generation Moroccan adolescents, and that programs targeting SoC may boost these youths’ positive adaptation and social integration
The contribution of visuo-spatial factors in representing a familiar environment: The case of undergraduate students at a university campus
No full textFamiliarity with an environment enables us to form elaborate mental representations, which also relate to individual visuo-spatial factors. This study examines how several individual cognitive and self-reported visuo-spatial factors contribute to people's knowledge of familiar environments. Undergraduates attending a university campus area for 12 months were administered visuo-spatial (mental rotation and visuo-spatial working memory) tasks, and tested on self-reported preferences, attitudes and strategy use in approaching an environment. Their environment knowledge was tested using location, path length judgment and pointing tasks. Regression modelling on environment knowledge factors (considering all recall tasks together) showed that visuo-spatial abilities and self-reported pleasure in exploring were associated with more accurate environment representations. Some differences emerged when single environment knowledge measures were considered. The contribution of individual visuo-spatial factors to knowledge of familiar environments is discussed from the spatial cognition standpoint
False memory for pictorial scripted material: the role of distinctiveness and negative emotion
No full textEmotional content has complex effects on false memory. Under certain circumstances, emotional material may reduce the likelihood of false memory, a phenomenon that some consider related to it being more distinctive than neutral stimuli. In the present study we tested inferential false memory related to emotionally neutral or negative, and distinctive (but not emotionally charged) scripted material. Remember/familiar judgements were required for recognised stimuli. Data were analysed using mixed-effects multinomial regressions and a Bayesian inferential approach. Results obtained with 82 adult participants showed that, compared with neutral material: distinctive material reduced their false memory associated with “remember” and “familiar” judgements, virtually to the same extent; negatively-charged material reduced false memory associated with “remember” judgements but it had no effect on false memory associated with “familiar” judgements. In short, negatively-charged and distinctive material seems to affect false memory in different ways: the latter affects both recollection and familiarity, the former only recollection
The cognitive effects of computational thinking: A systematic review and meta-analytic study
Full text linkIn this paper, we review and meta-analyze the findings of experimental studies published between 2006 and 2022 that examined the effects of coding and programming interventions on children's core and higher order executive functions (response inhibition, working memory, cognitive flexibility, planning and problem solving). The systematic review and meta-analysis aimed to address three research questions: 1) Which executive functions are most impacted by the teaching of CT? 2) Which instructional modality (educational robotics/virtual coding/unplugged coding) is most effective in enhancing executive function skills in learners aged 4–16 years? and 3) Does the cognitive effectiveness of coding vary with children's age? A total of 19 studies with 1523 participants met the selection criteria for the systematic review. The meta-analysis included 11 of those studies. The results reveal beneficial effects of structured virtual and tangible coding (educational robotics) activities for preschoolers and first graders, and significant effects of more unstructured virtual coding activities (e.g., Scratch-based) for older students. A multivariate fixed-effects model meta-analysis shows that the teaching of coding significantly improves problem-solving with the highest effect (dppc2 = 0.89), but also planning (dppc2 = 0.36), and inhibition and working memory with lower effects (dppc2 = 0.17, dppc2 = 0.20)
Reply to commentary: "Long term effects of the terrorist attack in Beslan on adolescent survivors"
No full textSocial support, sense of community, collectivistic values, and depressive symptoms in adolescent survivors of the 2004 Beslan terrorist attack
No full textThis cross-sectional study aimed to investigate the influence of socio-contextual variables on depressive symptoms in 158 adolescent survivors of the 2004 terrorist attack in Beslan, Russia, based on an ecological perspective. Participants were assessed 18 months after the traumatic event. Adolescents aged 14-17 years completed self-reported measures assessing depressive symptoms, social support, sense of community, and collectivism. The results of path analyses indicated that for both boys and girls, the endorsement of collectivistic values was related to increased family support, which in turn was associated with lower rates of depressive symptoms. In the male group, collectivism and sense of community were positively associated with peer support, which in turn was negatively related to depressive symptomatology. The findings suggest that social support and community connectedness may serve as protective resources in adolescents' psychological responses to terror-related stressors, and that gender differences as well as cultural values should be taken into consideration when implementing interventions with youths exposed to terrorism. © 2009 Elsevier Ltd. All rights reserved
Does the nature of the distractors influence the performance on visual search task for faces? An eye tracking study with adults and 3-month-old infants.
No full textLa detezione del volto in contesti complessi: uno studio con adulti e bambii di 3 e 6 mesi.
No full text- …
