9  (Pre)registrations

It is best practice to (pre)register systematic reviews. This has a number of benefits, one being that others can find out that you’re doing a systematic reviews, facilitating collaboration and potentially preventing double work. Conversely, before starting to plan a systematic review, you will typically want to check existing preregistration registries to make sure nobody else started the same review a year ago and is already almost done.

There is an extensive (pre)registration form for systematic reviews, the Inclusive Systematic Review Registration Form, that is available in this Google Doc, in this MetArXiv preprint, and in the preregr package. Using this form can be a useful help while planning your systematic review.