scholarly journals Moral foreign language effect and its moderating variables: A systematic review and meta-analysis

2022 ◽  
Vol 30 (1) ◽  
pp. 32
Author(s):  
Lin ZHU ◽  
Jinru LIU ◽  
Jing LI ◽  
Conghui LIU
Keyword(s):  
Systematic Review ◽  
Foreign Language ◽  
Meta Analysis ◽  
Moderating Variables

scholarly journals The Effects of Foods Embedded in Entertainment Media on Children’s Food Choices and Food Intake: A Systematic Review and Meta-Analyses

Nutrients ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 964 ◽  
Author(s):  
Victoria Villegas-Navas ◽  
Maria-Jose Montero-Simo ◽  
Rafael A. Araque-Padilla
Keyword(s):  
Systematic Review ◽  
Food Choice ◽  
Eating Behaviors ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Entertainment Media ◽  
Nutritional Values ◽  
Moderating Variables ◽  
Potential Factor ◽  
Meta Analyses

While watching or playing with media, children are often confronted with food appearances. These food portrayals might be a potential factor that affects a child’s dietary behaviors. We aimed to comprehensively expound the effects of these types of food appearances on dietary outcomes of children. Our objectives were to synthetize the evidence of the experiments that study the effects of foods embedded in children’s entertainment media throughout a systematic review, to conduct two meta-analyses (food choice and intake) in order to quantify the effects, and to examine to what extent the effects of foods embedded in entertainment media varies across different moderating variables. We conducted a systematic search of five databases for studies published up to July 2018 regarding terms related to children and foods embedded in entertainment media. We identified 26 eligible articles, of which 13 (20 effect sizes) and 7 (13 effect sizes) were considered for a meta-analysis on food choice and intake, respectively. Most of the studies were assessed as having a middle risk of bias. Overall, food being embedded in entertainment media is a strategy that affects the eating behaviors of children. As most of the embedded foods in the included studies had low nutritional values, urgent measures are needed to address the problem of childhood obesity.

scholarly journals Foreign Language Attainment of Children/Adolescents with Poor Literacy Skills: a Systematic Review and Meta-analysis

2020 ◽  
Author(s):  
Alexa von Hagen ◽  
Saskia Kohnen ◽  
Nicole Stadie
Keyword(s):  
Systematic Review ◽  
Foreign Language ◽  
Meta Analysis ◽  
Past Research ◽  
Individual Variability ◽  
Language Instruction ◽  
Literacy Skills ◽  
Foreign Language Instruction ◽  
Eligibility Criteria ◽  
Meta Analyses

Abstract This systematic review investigated how successful children/adolescents with poor literacy skills learn a foreign language compared with their peers with typical literacy skills. Moreover, we explored whether specific characteristics related to participants, foreign language instruction, and assessment moderated scores on foreign language tests in this population. Overall, 16 studies with a total of 968 participants (poor reader/spellers: n = 404; control participants: n = 564) met eligibility criteria. Only studies focusing on English as a foreign language were available. Available data allowed for meta-analyses on 10 different measures of foreign language attainment. In addition to standard mean differences (SMDs), we computed natural logarithms of the ratio of coefficients of variation (CVRs) to capture individual variability between participant groups. Significant between-study heterogeneity, which could not be explained by moderator analyses, limited the interpretation of results. Although children/adolescents with poor literacy skills on average showed lower scores on foreign language phonological awareness, letter knowledge, and reading comprehension measures, their performance varied significantly more than that of control participants. Thus, it remains unclear to what extent group differences between the foreign language scores of children/adolescents with poor and typical literacy skills are representative of individual poor readers/spellers. Taken together, our results indicate that foreign language skills in children/adolescents with poor literacy skills are highly variable. We discuss the limitations of past research that can guide future steps toward a better understanding of individual differences in foreign language attainment of children/adolescents with poor literacy skills.

scholarly journals Foreign language attainment of children/adolescents with poor literacy skills: A systematic review and meta-analysis

2020 ◽  
Author(s):  
Alexa von Hagen ◽  
Saskia Kohnen ◽  
Nicole Stadie
Keyword(s):  
Systematic Review ◽  
Foreign Language ◽  
Meta Analysis ◽  
Past Research ◽  
Individual Variability ◽  
Language Instruction ◽  
Literacy Skills ◽  
Foreign Language Instruction ◽  
Eligibility Criteria ◽  
Meta Analyses

This systematic review investigated how successful children/adolescents with poor literacy skills learn a foreign language compared to their peers with typical literacy skills. Moreover, we explored whether specific characteristics related to participants, foreign language instruction and assessment moderated scores on foreign language tests in this population. Overall, 16 studies with a total of 968 participants (poor reader/spellers: n = 404; control participants: n = 564) met eligibility criteria. Only studies focusing on English as a foreign language were available. Available data allowed for meta-analyses on 10 different measures of foreign language attainment. In addition to standard mean differences (SMDs), we computed natural logarithms of the ratio of coefficients of variation (CVRs) to capture individual variability between participant groups. Significant between-study heterogeneity, which could not be explained by moderator analyses, limited the interpretation of results. Although children/adolescents with poor literacy skills on average showed lower scores on foreign language phonological awareness, letter knowledge, and reading comprehension measures, their performance varied significantly more than that of control participants. Thus, it remains unclear to what extent group differences between the foreign language scores of children/adolescents with poor and typical literacy skills are representative of individual poor readers/spellers. Taken together, our results indicate that foreign language skills in children/adolescents with poor literacy skills are highly variable. We discuss limitations of past research that can guide future steps towards a better understanding of individual differences in foreign language attainment of children/adolescents with poor literacy skills.

scholarly journals The Effect of Social Media Use on Depression in Adolescents: A Systematic Review and Meta-analysis

2021 ◽  
Vol 24 (1) ◽  
pp. 2-23
Author(s):  
Mina Vesal ◽  
◽  
Changiz Rahimi ◽  
Keyword(s):  
Systematic Review ◽  
Social Media ◽  
Media Use ◽  
Meta Analysis ◽  
Ethical Considerations ◽  
Social Media Use ◽  
Cross Sectional ◽  
Moderating Variables ◽  
Quantitative Studies ◽  
The Impact

Background and Aim: Concerns are increasingly raised about the impact of social media use on depression in adolescents. This article aimed to summarize and synthesize quantitative studies addressing the association between social media and depression in adolescents. Methods & Materials: This systematic review and meta-analysis included studies on the impact of the internet and social media use on depression in adolescents using Persian and English databases. In total, 15 studies met the inclusion criteria and were included in the analysis. Ethical Considerations: All ethical principles are considered in this article. Results: The obtained data revealed a slight (0.18) statistically significant correlation (P<0.000) between social media use and depression in adolescents. However, this relationship was complex and associated with multiple psychosocial, behavioral, and individual factors, necessitating further investigation of mediating and moderating variables. Notably, most explored studies were cross-sectional; thus, they failed to infer the causal relationship between social media use and depression. In Iran, research has only investigated internet dependence. Further research is required in this area. Conclusion: Overall, the mechanism of the impact of social media on depression should be further investigated through qualitative and longitudinal studies.

The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Yali Wei ◽  
Yan Meng ◽  
Na Li ◽  
Qian Wang ◽  
Liyong Chen
Keyword(s):  
Systematic Review ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acid ◽  
Meta Analysis ◽  
Chain Polyunsaturated Fatty Acid ◽  
Inflammation Markers ◽  
Pufa Supplementation ◽  
Long Chain

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.

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