scholarly journals Do sounds near the hand facilitate tactile reaction times? Four experiments and a meta-analysis provide mixed support and suggest a small effect size

2020 ◽  
Vol 238 (4) ◽  
pp. 995-1009 ◽  
Author(s):  
Nicholas Paul Holmes ◽  
Dennis Martin ◽  
William Mitchell ◽  
Zeeshan Noorani ◽  
Amber Thorne
2021 ◽  
Author(s):  
Bastien Trémolière ◽  
Corentin J Gosling

Recent research has shown mixed evidence for the morning morality effect (i.e., the observation that individuals are less immoral in the morning than in the afternoon). In the present research, we target the morning morality effect in the context of moral utilitarianism, by reanalyzing observational data previously collected by our lab. These data include different tasks capturing moral utilitarianism (i.e., standard sacrificial dilemmas, an ecological utilitarian scale, and/or dilemmas involving the morality of autonomous vehicles). We report a meta-analysis of 6 studies which showed that participants became less utilitarian as the day goes on, but with a small effect size (r = -0.14) and a large heterogeneity. Exploration of this heterogeneity showed that such a conclusion was statistically significant for classic sacrificial dilemmas only. Notably, even when restricting the analysis to the classic sacrificial dilemmas, a moderate inconsistency remained. Post-hoc analysis of an individual study showed that this small effect did not survive the inclusion of potentially confounding variables, such as psychopathy trait and cognitive reflection. Implications and limitations are discussed.


2018 ◽  
Vol 107 (4) ◽  
pp. 285-293 ◽  
Author(s):  
M. Saltychev ◽  
K. Laimi ◽  
P. Virolainen ◽  
M. Fredericson

Background and Aims: Even though hydrodilatation has been used for 50 years, the evidence on its effectiveness is not clear. Only one earlier review has strictly focused on this treatment method. The aims of this study are to evaluate the evidence on the effectiveness of hydrodilatation in treatment of adhesive capsulitis and, if appropriate, to assess the correlation between the effects of this procedure and the amount of fluid injected. Materials and Methods: A literature search on MEDLINE, Embase, Scopus, Cochrane Central, Web of Science, and CINAHL databases was done; random-effects meta-analysis and meta-regression were employed; and cost-effectiveness and safeness analyses were left outside the scope of the review. Results: Of the 270 records identified through search, 12 studies were included in qualitative and quantitative analysis and seven were included in a meta-analysis. The lower 95% confidence interval for the effect of hydrodilatation on pain severity was 0.12 indicating small effect size and mean number needed to treat 12. The pooled effect of hydrodilatation on disability level was insignificant 0.2 (95% confidence interval: −0.04 to 0.44). The lower 95% confidence interval for the effect of hydrodilatation on the range of shoulder motion was close to zero (0.07) indicating small effect size with mean number needed to treat 12. The amount of injected solution did not have a substantial effect on pain severity or range of shoulder motion. The heterogeneity level I2 was acceptable from 0% to 60%. Conclusion: According to current evidence, hydrodilatation has only a small, clinically insignificant effect when treating adhesive capsulitis.


10.2196/12967 ◽  
2019 ◽  
Vol 21 (8) ◽  
pp. e12967 ◽  
Author(s):  
Bhone Myint Kyaw ◽  
Pawel Posadzki ◽  
Sophie Paddock ◽  
Josip Car ◽  
James Campbell ◽  
...  

Background Effective communication skills are essential in diagnosis and treatment processes and in building the doctor-patient relationship. Objective Our aim was to evaluate the effectiveness of digital education in medical students for communication skills development. Broadly, we assessed whether digital education could improve the quality of future doctors’ communication skills. Methods We performed a systematic review and searched seven electronic databases and two trial registries for randomized controlled trials (RCTs) and cluster RCTs (cRCTs) published between January 1990 and September 2018. Two reviewers independently screened the citations, extracted data from the included studies, and assessed the risk of bias. We also assessed the quality of evidence using the Grading of Recommendations, Assessment, Development, and Evaluations assessment (GRADE). Results We included 12 studies with 2101 medical students, of which 10 were RCTs and two were cRCTs. The digital education included online modules, virtual patient simulations, and video-assisted oral feedback. The control groups included didactic lectures, oral feedback, standard curriculum, role play, and no intervention as well as less interactive forms of digital education. The overall risk of bias was high, and the quality of evidence ranged from moderate to very low. For skills outcome, meta-analysis of three studies comparing digital education to traditional learning showed no statistically significant difference in postintervention skills scores between the groups (standardized mean difference [SMD]=–0.19; 95% CI –0.9 to 0.52; I2=86%, N=3 studies [304 students]; small effect size; low-quality evidence). Similarly, a meta-analysis of four studies comparing the effectiveness of blended digital education (ie, online or offline digital education plus traditional learning) and traditional learning showed no statistically significant difference in postintervention skills between the groups (SMD=0.15; 95% CI –0.26 to 0.56; I2=86%; N=4 studies [762 students]; small effect size; low-quality evidence). The additional meta-analysis of four studies comparing more interactive and less interactive forms of digital education also showed little or no difference in postintervention skills scores between the two groups (SMD=0.12; 95% CI: –0.09 to 0.33; I2=40%; N=4 studies [893 students]; small effect size; moderate-quality evidence). For knowledge outcome, two studies comparing the effectiveness of blended online digital education and traditional learning reported no difference in postintervention knowledge scores between the groups (SMD=0.18; 95% CI: –0.2 to 0.55; I2=61%; N=2 studies [292 students]; small effect size; low-quality evidence). The findings on attitudes, satisfaction, and patient-related outcomes were limited or mixed. None of the included studies reported adverse outcomes or economic evaluation of the interventions. Conclusions We found low-quality evidence showing that digital education is as effective as traditional learning in medical students’ communication skills training. Blended digital education seems to be at least as effective as and potentially more effective than traditional learning for communication skills and knowledge. We also found no difference in postintervention skills between more and less interactive forms of digital education. There is a need for further research to evaluate the effectiveness of other forms of digital education such as virtual reality, serious gaming, and mobile learning on medical students’ attitude, satisfaction, and patient-related outcomes as well as the adverse effects and cost-effectiveness of digital education.


Autism ◽  
2021 ◽  
pp. 136236132198915
Author(s):  
Alexander C Wilson

This meta-analysis tested whether autistic people show a marked, isolated difficulty with mentalising when assessed using the Frith -Happé Animations, an advanced test of mentalising (or ‘theory of mind’). Effect sizes were aggregated in multivariate meta-analysis from 33 papers reporting data for over 3000 autistic and non-autistic people. Relative to non-autistic individuals, autistic people underperformed, with a small effect size on the non-mentalising control conditions and a medium effect size on the mentalising condition. This indicates that studies have reliably found mentalising to be an area of challenge for autistic people, although the group differences were not large. It remains to be seen how important mentalising difficulties are in accounting for the social difficulties diagnostic of autism. As autistic people underperformed on the control conditions as well as the mentalising condition, it is likely that group differences on the test are partly due to domain-general information processing differences. Finally, there was evidence of publication bias, suggesting that true effects on the Frith -Happé Animations may be somewhat smaller than reported in the literature. Lay abstract Autistic people are thought to have difficulty with mentalising (our drive to track and understand the minds of other people). Mentalising is often measured by the Frith -Happé Animations task, where individuals need to interpret the interactions of abstract shapes. This review article collated results from over 3000 people to assess how autistic people performed on the task. Analysis showed that autistic people tended to underperform compared to non-autistic people on the task, although the scale of the difference was moderate rather than large. Also, autistic people showed some difficulty with the non-mentalising as well as mentalising aspects of the task. These results raise questions about the scale and specificity of mentalising difficulties in autism. It also remains unclear how well mentalising difficulties account for the social challenges diagnostic of autism.


Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2571
Author(s):  
Tianxiang Cui ◽  
Jiaxuan Xi ◽  
Chanyuan Tang ◽  
Jianwen Song ◽  
Jinbo He ◽  
...  

Food intake has been shown to be related to several environmental factors including the presence of music. However, previous findings of the relationship between music and food intake are inconsistent. In the present study, a systematic review and meta-analysis was conducted to quantitatively review the extent to which music is associated with food intake as well as to investigate potential moderators that might have contributed to the heterogeneity of the existing findings. Literature was searched on four databases (i.e., PsycINFO, Web of Science, PubMed, and ProQuest Dissertations and Theses) and Google Scholar. Nine articles published from 1989 to 2020 met our inclusion criteria. A meta-analysis was carried out via a three-level random-effects model. The overall effect size (i.e., Hedges’ g) was 0.19 (95% Confidence Interval: −0.003, 0.386; SE = 0.10, t = 1.99, p = 0.054), indicating a marginally significant but small effect size. Body Mass Index (F(1, 21) = 5.11, p = 0.035) was found to significantly contribute to the heterogeneity of effect sizes, with larger positive effects of music on food intake for individuals with higher BMI. However, music-related features did not significantly moderate the relationship between music and food intake. More experimental studies are needed to update the current meta-analysis and get a better understanding of this topic.


2018 ◽  
Author(s):  
Xi-Ze Jia ◽  
Na Zhao ◽  
Barek Barton ◽  
Roxana Burciu ◽  
Nicolas Carrière ◽  
...  

AbstractThousands of papers using resting-state functional magnetic resonance imaging (RS-fMRI) have been published on brain disorders. Results in each paper may have survived correction for multiple comparison. However, since there have been no robust results from large scale meta-analysis, we do not know how many of published results are truly positives. The present meta-analytic work included 60 original studies, with 57 studies (4 datasets, 2266 participants) that used a between-group design and 3 studies (1 dataset, 107 participants) that employed a within-group design. To evaluate the effect size of brain disorders, a very large neuroimaging dataset ranging from neurological to psychiatric isorders together with healthy individuals have been analyzed. Parkinson’s disease off levodopa (PD-off) included 687 participants from 15 studies. PD on levodopa (PD-on) included 261 participants from 9 studies. Autism spectrum disorder (ASD) included 958 participants from 27 studies. The meta-analyses of a metric named amplitude of low frequency fluctuation (ALFF) showed that the effect size (Hedges’ g) was 0.19 - 0.39 for the 4 datasets using between-group design and 0.46 for the dataset using within-group design. The effect size of PD-off, PD-on and ASD were 0.23, 0.39, and 0.19, respectively. Using the meta-analysis results as the robust results, the between-group design results of each study showed high false negative rates (median 99%), high false discovery rates (median 86%), and low accuracy (median 1%), regardless of whether stringent or liberal multiple comparison correction was used. The findings were similar for 4 RS-fMRI metrics including ALFF, regional homogeneity, and degree centrality, as well as for another widely used RS-fMRI metric namely seed-based functional connectivity. These observations suggest that multiple comparison correction does not control for false discoveries across multiple studies when the effect sizes are relatively small. Meta-analysis on un-thresholded t-maps is critical for the recovery of ground truth. We recommend that to achieve high reproducibility through meta-analysis, the neuroimaging research field should share raw data or, at minimum, provide un-thresholded statistical images.


2021 ◽  
Vol 13 (4) ◽  
pp. 63-82
Author(s):  
*Zhonggen Yu ◽  
Liheng Yu

Social media applications such as Facebook have received wide attention in their use in education. However, it is still hard to arrive at a conclusion regarding whether a Facebook-assisted approach is effective in education and whether there are any significant gender differences in the learning outcomes. Based on rigid inclusion criteria, this study included 21 peer-reviewed high-quality journal articles. Through a meta-analysis using Reviewer Manager 5.3, the authors concluded that a Facebook-assisted approach could obtain significantly higher learning outcomes than the non-Facebook-assisted one with a medium effect size (d = 0.42) and that females could achieve significantly better learning outcomes than males with a very small effect size (d = -0.21) in the Facebook-assisted education. Future research could examine the effect of educational use of other social media applications, as well as in sociological, psychological, or educational dimensions.


Author(s):  
Eui Jae Kim ◽  
Hyun Wook Kang ◽  
Seong Man Park

The purpose of this meta-analysis study was to investigate the effectiveness of psychological skills training interventions for archery players in Korea. A total of 17 research papers examining the effects of psychological skills training interventions were selected for data analysis. To analyze the data, the Comprehensive Meta-Analysis (CMA) software program was used. The results of this study were as follows: The overall effect size of psychological skills training interventions for archery players was ES = 0.469 (Hedges’ g), which was a small effect size. The major factors that influenced the effects of psychological skills training interventions for archery players appeared to be the player level and training period. In particular, adult players and longer periods of training had bigger effect sizes. The results of this study demonstrate that psychological skills training for archery players is effective and show that the player level and training period are crucial factors in the psychological skills training design. Based on these findings, some implications for future research are discussed.


Author(s):  
Kahini Mehta ◽  
Ariel Hoadley ◽  
Lara A Ray ◽  
Brian D Kiluk ◽  
Kathleen M Carroll ◽  
...  

Abstract Aims This meta-analysis reviewed 15 clinical trials (18 study sites/arms), examining the efficacy of an integrated cognitive-behavioral intervention (CBI) delivered to individuals with an alcohol or other drug use disorder and a co-occurring mental health disorder (AOD/MHD). Outcomes were alcohol or other drug use and mental health symptoms at post-treatment through follow-up. Methods The inverse-variance weighted effect size was calculated for each study and pooled under random effects assumptions. Results Integrated CBI showed a small effect size for AOD (g = 0.188, P = 0.061; I2 = 86%, τ2 = 0.126, k = 18) and MHD (g = 0.169, P = 0.024; I2 = 58%, τ2 = 0.052, k = 18) outcomes, although only MHD outcomes were statistically significant. Analysis by subgroup suggested that effect magnitude varied by type of contrast condition (integrated CBI + usual care vs. usual care only; integrated CBI vs. a single-disorder intervention), follow-up time point (post-treatment vs. 3–6 months) and primary AOD/MHD diagnosis, although these sub-groups often contained significant residual heterogeneity. In a series of mixed effects, meta-regression models, demographic factors were non-significant predictors of between-study heterogeneity. For AOD outcomes, greater effects were observed in higher quality studies, but study quality was not related to effect size variability for MHD outcomes. Conclusions The current meta-analysis shows a small and variable effect for integrated CBI with the most promising effect sizes observed for integrated CBI compared with a single disorder intervention (typically an AOD-only intervention) for follow-up outcomes, and for interventions targeting alcohol use and/or post-traumatic stress disorder. Given the clinical and methodological variability within the sample, results should be considered a preliminary, but important step forward in our understanding of treatment for co-occurring AOD/MHD.


2021 ◽  
Vol 12 ◽  
Author(s):  
Bruno Tassignon ◽  
Jo Verschueren ◽  
Jean-Pierre Baeyens ◽  
Anne Benjaminse ◽  
Alli Gokeler ◽  
...  

Background: Differential learning (DL) is a motor learning method characterized by high amounts of variability during practice and is claimed to provide the learner with a higher learning rate than other methods. However, some controversy surrounds DL theory, and to date, no overview exists that compares the effects of DL to other motor learning methods.Objective: To evaluate the effectiveness of DL in comparison to other motor learning methods in the acquisition and retention phase.Design: Systematic review and exploratory meta-analysis.Methods: PubMed (MEDLINE), Web of Science, and Google Scholar were searched until February 3, 2020. To be included, (1) studies had to be experiments where the DL group was compared to a control group engaged in a different motor learning method (lack of practice was not eligible), (2) studies had to describe the effects on one or more measures of performance in a skill or movement task, and (3) the study report had to be published as a full paper in a journal or as a book chapter.Results: Twenty-seven studies encompassing 31 experiments were included. Overall heterogeneity for the acquisition phase (post-pre; I2 = 77%) as well as for the retention phase (retention-pre; I2 = 79%) was large, and risk of bias was high. The meta-analysis showed an overall small effect size of 0.26 [0.10, 0.42] in the acquisition phase for participants in the DL group compared to other motor learning methods. In the retention phase, an overall medium effect size of 0.61 [0.30, 0.91] was observed for participants in the DL group compared to other motor learning methods.Discussion/Conclusion: Given the large amount of heterogeneity, limited number of studies, low sample sizes, low statistical power, possible publication bias, and high risk of bias in general, inferences about the effectiveness of DL would be premature. Even though DL shows potential to result in greater average improvements between pre- and post/retention test compared to non-variability-based motor learning methods, more high-quality research is needed before issuing such a statement. For robust comparisons on the relative effectiveness of DL to different variability-based motor learning methods, scarce and inconclusive evidence was found.


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