Imagine a researcher computes a failsafe number of 20. That means A) B) C) D) there would have to be 20 published studies with significant findings to overturn the results of a meta-analysis. the meta-analysis needs at least 20 studies in order to be valid. there would have to be 20 unpublished studies with non- significant findings to overturn the results of a meta-analysis. there would have to be 20 unpublished studies with non- significant findings to support the results of a meta-analysis.