Bem encouraged other scientists to repeat their experiments. Three scientists, including psychologist Stuart Ritchie at the University of Edinburgh (UK), Richard Wiseman at the University of Hertfordshire, and Christopher French at University College London conducted three separate studies with university students seeking evidence of telepathy.
A discovery is considered real science when the experiment finds it can be repeated by other scientists. If no other researcher has been able to repeat the study and the results are similar, that discovery is not real. In Bem’s experiment, volunteers were shown 48 words flashed on a computer screen. They were then given a memory test by re-typing all the words on the screen they just saw.Then, a randomly selected 24 words out of 48 are displayed again. Participants went on to do some quiz with these words. The experiment is over. After analyzing the results of a memory test, Bem and colleagues concluded that: Students were more likely to recall words they were about to be seen again than words that did not show again in the following test, such as they can foresee the future.
However, three repeated studies by three psychologists all concluded: “We found nothing”.