The SRI Remote Viewing Experiments, Studies
Standing
Concerns Principal Critic
Currently States David Marks and Richard Kammann, who reported in Nature in 1978 that the transcripts carried cues to session order and that the effect vanished when those were removed before judging
Harold Puthoff and Russell Targ conducted the SRI remote viewing experiments, in which a viewer in a shielded room described a site drawn at random from a sealed pool and later visited by an experimenter, with transcripts matched to sites afterward by judges working blind to the correct answer. David Marks and Richard Kammann, in Information Transmission in Remote Viewing Experiments (1978), examined the transcripts Puthoff and Targ had circulated to outside judges and argued the copies carried inadvertent sequential cues, references to the previous day's target or session number, letting a judge infer the correct order without any paranormal transfer. No allegation of fraud was made; the criticism was of an editing and circulation error rather than fabrication. Puthoff and Targ answered that removing the cued material, as critics proposed, also removed legitimate descriptive content along with it, leaving the reanalysis unable to cleanly separate the two, which is why the principal critique remains disputed on methodological grounds rather than resolved by either side conceding the point.
Source Information Transmission in Remote Viewing Experiments, David Marks and Richard Kammann