Recently an medium named Patricia apparently failed the test. Their are two possibilities here one she couldn't do what she claims she can do, we do know without a doubt many mediums are frauds, cold readers. However their are some that are genuine. Another possibility is that perhaps the data was altered some. The reason why i say this is because of a number of reasons.
1] He's the fellow who claimed that his own work invalidated Rupert Sheldrake's research on "pet telepathy," but when Wiseman's results were analyzed, they were found to match the same patterns Sheldrake had identified!
http://www.sheldrake.org/D&C/controvers ... n_psi.html
2] He was also one of the investigators in the thoroughly botched Natasha Demkina experiment.
http://www.skepticalinvestigations.org/ ... index.html
3] Here's a good takedown of Wiseman by Stephen Braude.
http://www.skepticalinvestigations.org/ ... seman.html
4] More articles critical of Wiseman can be found here
http://search.freefind.com/find.html?oq ... search=all