Abstract Publication bias has been recognized as a threat to the validity of meta-analytic findings and scientific knowledge in general. Given the recent rise in meta-analytic research in communication, how well publication bias concerns are addressed by communication meta-analysts merits attention. In this essay, after a brief overview of publication bias and some major methods of assessment, we provide a systematic review of meta-analyses published in six major communication journals between 2005 and 2018. The review focuses on two aspects of addressing publication bias in meta-analyses: (a) reducing the potential impact of bias via an inclusive literature search; and (b) empirically assessing the extent and impact of bias in meta-analytic findings. Our review shows that the current practices in communication meta-analyses are inadequate in both aspects. We offer recommendations on ways of improving practices in meta-analyses, as well as in research and publication processes, to better safeguard knowledge claims.

中文翻译：

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未发表不会消亡：解决传播元分析研究中的发表偏见

摘要 发表偏倚已被认为是对元分析结果和一般科学知识有效性的威胁。鉴于最近传播元分析研究的兴起，传播元分析员如何解决出版偏见问题值得关注。在这篇文章中，在简要概述了发表偏倚和一些主要的评估方法之后，我们对 2005 年至 2018 年间在六种主要传播期刊上发表的荟萃分析进行了系统综述。综述侧重于解决 meta 发表偏倚的两个方面-分析：（a）通过包容性文献搜索减少偏见的潜在影响；(b) 凭经验评估荟萃分析结果中偏倚的程度和影响。我们的审查表明，当前交流荟萃分析的做法在这两个方面都不足。我们就如何改进荟萃分析以及研究和出版过程中的实践提供建议，以更好地保护知识主张。