[R-meta] Random-effects meta-analyses with inverse-variance weights cannot include studies with sample sizes of two?
A need your advise about a referee comment: "random-effects meta-analyses with inverse-variance weights cannot include studies with sample sizes of two". Is this statement correct, and if yes, why? Thanks Patrizio -- Patrizio E. Tressoldi Ph.D. Dipartimento di Psicologia Generale Universit? di Padova via Venezia 8 35131 Padova - ITALY http://www.patriziotressoldi.it https://orcid.org/0000-0002-6404-0058 Science of Consciousness Research Group http://dpg.unipd.it/en/soc Make war history support http://www.emergency.it