Search Results

You are looking at 1 - 10 of 95 items for :

  • "publication bias" x
  • Refine by Access: All Content x
Clear All
Restricted access

Markus Schäfer and Catharina Vögele

, communication channels, sports, and countries. How the distribution of these parameters in leading scientific journals looks can reveal not only how research in the field is understood and performed, but also whether there is a problematic publication bias, or if there are blind spots in research that

Full access

Renata Valle Pedroso, Miguel Adriano Sanchez-Lastra, Laura Iglesias Comesaña, and Carlos Ayán

assessors of outcomes were not blinded to group allocation), publication bias (when publication bias was suspected), and inconsistency (when I 2  > 50 % for heterogeneity). Data Analyses The meta-analysis was conducted when at least 3 studies reported baseline and posttreatment data of the same outcome and

Restricted access

Nicholas D. Myers, Sung Eun Park, Soyeon Ahn, Seungmin Lee, Philip J. Sullivan, and Deborah L. Feltz

small, |.30| as medium, and |.50| as large. Type I error rate was set to .05 from this point forward in this manuscript for each null hypothesis test. Publication Bias A variety of statistical tests were performed to address the degree to which publication bias was a concern for this meta-analysis. In

Restricted access

Vagner Deuel de Oliveira Tavares, Nicole Leite Galvão-Coelho, Joseph Firth, Simon Rosenbaum, Brendon Stubbs, Lee Smith, Davy Vancampfort, and Felipe Barreto Schuch

indicator of substantial variation in observed effects. 37 We evaluated the presence of publication bias using the Begg and Mazumdar 38 and Egger tests. 39 The Trim and Fill procedure  was applied if evidence of publication bias was noted 40 trim and fill technique was applied to adjust and recalculate

Restricted access

Jaehun Jung, Willie Leung, Bridgette Marie Schram, and Joonkoo Yun

cited When evaluating publication bias, the overall weighted mean effects were assessed for degree of publication bias using three different approaches: Orwin’s fail-safe N , the trim and fill method, and Egger’s regression test. Orwin’s fail-safe N computes the number of studies with a null effect

Restricted access

Matthew D. DeLang, Mehdi Rouissi, Nicola L. Bragazzi, Karim Chamari, and Paul A. Salamh

( P  = .5485) could be detected. No publication bias could be detected (Egger regression test P  = .82902). Removing 1 study at a time and performing cumulative analyses confirmed the stability and reliability of the findings. Figure 3 —Among 68 male players, the overall standardized difference in

Restricted access

Layne Case and Joonkoo Yun

posttest changes? Scoring: 1 =  yes ; 0 =  no or unknown based on information provided in the study. As for any meta-analysis, it was important to assess the potential for publication bias. If the included studies are a biased sample of studies due to the publication process, then the mean effect size

Restricted access

Israel Halperin, Andrew D. Vigotsky, Carl Foster, and David B. Pyne

, selectively reporting positive results can lead to a distorted perception of reality. 36 This positive publication bias, which has been demonstrated in a number of disciplines, hinders the reputation of the scientific method and raises questions pertaining to the underlying rigor and credibility of science

Restricted access

Rochelle Rocha Costa, Adriana Cristine Koch Buttelli, Alexandra Ferreira Vieira, Leandro Coconcelli, Rafael de Lima Magalhães, Rodrigo Sudatti Delevatti, and Luiz Fernando Martins Kruel

number of repetitions of each exercise per session), and volume per session (number of exercises multiplied by the maximal number of sets multiplied by the maximal number of repetitions of each exercise per session). Furthermore, publication bias was assessed using funnel plots for each outcome (of each

Restricted access

Junga Lee

determined by the Q statistic. The I 2 statistic was used to determine inconsistency across the sampled studies. A visual inspection of the funnel plot and Begg’s and Egger’s tests were used to investigate publication bias. Results A selection process for this meta-analysis study is presented in Figure