Discovery Lab Answers

Ray Hyman

Ray Hyman is a research psychologist and prominent skeptical voice in parapsychology who has shaped methodological standards in the field through sustained critical engagement with experimental psi research, particularly ganzfeld studies.

The Hyman-Honorton collaboration

Hyman is best known in parapsychology for an unusual collaborative moment: in 1986, after years of public methodological debate with parapsychologist Charles Honorton, Hyman co-authored a joint statement with him. Rather than continue the back-and-forth critique, the two agreed to work together and produced a co-authored communiqué acknowledging what the ganzfeld database showed and laying out standards for future research ^[1][5].

In that 1986 Joint Communiqué, Hyman and Honorton jointly concluded that the ganzfeld database showed an overall significant effect not reasonably explained by selective reporting or multiple analysis, while continuing to disagree over whether that effect was evidence for psi ^[1]. The statement then issued specific recommendations on randomization, judging and feedback procedures, multiple analysis, and other methodological controls to guide subsequent work ^[1][5].

Hyman’s role as methodological critic

Beyond the collaboration, Hyman has maintained a critical position on psi evidence in the decades since. In 1994, he published a detailed response to Bem and Honorton’s autoganzfeld results, arguing that apparent consistencies with earlier parapsychological research were “more apparent than real” and addressing potential sources of artifact in the judging procedure ^[4]. In 2010, commenting on a meta-analysis by Storm and colleagues, Hyman argued that meta-analyses of psi studies “conceal more than they reveal,” contending that individual ganzfeld and autoganzfeld databases “clearly do not form coherent collections” and that heterogeneity among studies had been masked ^[2].

For deeper context on the methodological dispute and the significance of the 1986 agreement, see the ESP-Nexus page on Hyman–Honorton Joint Communiqué and Methodological Standards and the Ganzfeld Debate.