Does Psi Exist? Lack of Replication of an Anomalous Process of Information Transfer

Julie Milton and Richard Wiseman's Does Psi Exist? Lack of Replication of an Anomalous Process of Information Transfer, published in Psychological Bulletin in 1999, is a peer reviewed meta-analysis finding that ganzfeld telepathy experiments conducted after an earlier influential positive meta-analysis failed, taken together, to replicate the claimed anomalous information transfer effect. Its strength is that it is peer reviewed and methodologically rigorous, published in a leading psychology review journal, and it remains a standard citation on the negative side of the ganzfeld replication debate specifically. Its limit is that it addresses one experimental paradigm within a still actively contested parapsychology literature, where proponents have raised methodological rejoinders since, so a claim about psi research generally should not treat this single meta-analysis as having settled the broader question either way.