Milton and Wiseman Ganzfeld Meta-analysis

Record summary

Julie Milton and Richard Wiseman published a meta-analysis of ganzfeld research that questioned whether the accumulated evidence demonstrated psi, emphasizing replication failures and methodological concerns. The paper is important for comparison because ganzfeld work was often presented as one of parapsychology’s more systematic experimental paradigms. The dispute involves study selection, statistical assumptions, optional stopping, sensory leakage, and differences between successful and unsuccessful laboratories. It should be paired with earlier positive reviews and later methodological responses.