Radin was elected president of the
Parapsychological Association in 1988, 1993, 1998, and 2005, and has published a number of articles and papers supporting the existence of
paranormal phenomena, as well as two books directed to a popular audience:
The Conscious Universe and
Entangled Minds. Radin believes that parapsychology is as repeatable as any scientific discipline, but that it is also, as paraphrased by sociologist
Erich Goode, "elusive, subtle and complex", a field of study that is "difficult to replicate" and that "our understanding of it is incomplete". Radin's paranormal claims have been rejected by those in the skeptical and mainstream scientific communities, some of whom have suggested that Radin's beliefs embrace
pseudoscience and that he misunderstands the
nature of science. The physicist
Robert L. Park has written "No proof of psychic phenomena is ever found. In spite of all the tests devised by parapsychologists like
Jahn and Radin, and huge amounts of data collected over a period of many years, the results are no more convincing today than when they began their experiments." Radin has claimed the results from parapsychological research are as consistent by the same standards as any other scientific discipline, but
Ray Hyman has written that many parapsychologists disagree with this, openly admitting that the evidence for parapsychology is "inconsistent, irreproducible, and fails to meet acceptable scientific standards". Radin and his colleagues have suggested that small-scale studies have produced a "genuine
psychokinetic effect", but critics have asserted that Radin has not shown evidence that the
null hypothesis of such an effect could be confidently rejected. Further, psychologists David B. Wilson and William R. Shadish, writing in
Psychological Bulletin, criticized claims made by Radin and his associates that human minds can psychically influence random number generators, saying that parapsychologists "need to go beyond statistics and explain how the mind might influence a computer, then test that prediction". Radin has written that not all people experience paranormal phenomena (or see
ghosts) because they block such signals due to the process of
latent inhibition. ==Books==