Possible editorial responses to the proliferation of problematic meta-analyses and research syntheses

Journal and book editors in most disciplines are faced with a flood of meta-analyses, which critical reviews have shown are not always of sufficient quality. In the short run, editors could give targeted instructions to authors and make specific recommendations to reviewers to ensure that not only meta-analyses but also research syntheses more broadly, published under their watch, meet acceptable publication standards. In order to achieve satisfactory improvements in the long run, editors should foster fundamental changes in the way the publication of negative and non-significant results is handled.