ESP: A Scientific Evaluation

C. E. M. Hansel was a psychologist, and this Charles Scribner's Sons book is his skeptical scientific evaluation of the experimental evidence offered for extrasensory perception, examining major studies for methodological weaknesses including the possibility of fraud and poor controls. Its strength is that it is a systematic, methodology focused critique from within experimental psychology, addressing specific published studies point by point rather than dismissing the field in general terms. Its limit is its age: it evaluates the ESP experiments current in the mid twentieth century, so a claim about later parapsychology research, including studies conducted after this book's publication, needs more recent critical literature alongside it.