Chris French criticized Radin for his selective historical overview of parapsychology and ignoring evidence of fraud. French recounts that the medium Florence Cook was caught in acts of trickery and two of the Fox sisters confessed to fraud, but that Radin did not mention this fact. Radin has claimed the results from psi research are as consistent by the same standards as any other scientific discipline but Ray Hyman has written many parapsychologists disagree with that opinion and openly admit the evidence for psi is "inconsistent, irreproducible, and fails to meet acceptable scientific standards".
Radin's paranormal claims have been roundly rejected by those in the skeptical and mainstream scientific communities, some of whom have suggested that he has embraced 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." Steven Novella wrote that Radin's alleged positive results from parapsychological experiments have not been replicated by the scientific community.