http://www.bbc.co.uk/news/education-20145664
The test by researchers at Goldsmiths, University of London, tried to establish whether mediums could use psychic abilities to identify something about five unseen volunteers.
The results, carried out under test conditions, did not show evidence of any unexplained powers of insight.
But medium Patricia Putt said this experiment "doesn't prove a thing".
This Halloween challenge was an attempt to investigate whether professional mediums could demonstrate their psychic powers in a controlled setting - by inviting them to deduce something about people they had never met and could not see or hear.