An ongoing "reproducibility crisis" calls into question scientific discoveries across a variety of disciplines ranging from life to social sciences. Replication studies aim to investigate the validity of findings in published research, and try to assess whether the latter are statistically consistent with those in the replications. While the majority of replication projects are based on a single experiment, multiple independent replications of the same experiment conducted simultaneously at different sites are becoming more frequent. In connection with these types of projects, we deal with testing heterogeneity among sites; specifically, we focus on sample size determination suitable to deliver compelling evidence once the experimental data are gathered.

翻译：持续存在的“可重复性危机”对生命科学到社会科学等多个领域的科学发现提出了质疑。重复性研究旨在验证已发表研究结果的有效性，并评估这些结果是否与重复实验的结果在统计上一致。尽管大多数重复性项目基于单一实验，但在不同地点同时进行的同一实验的多次独立重复正变得越来越常见。针对这类项目，我们探讨了各地点间的异质性检验问题；具体而言，我们聚焦于在获取实验数据后能够提供有力证据的样本量确定方法。