social psychology journal
There is your problem right there. Psychology and sociology and history lack the mathematical rigor of the physical sciences.
This is probably another pile of poodoo cooked up by some crackpot psychologist looking desperately for his next grant.
And a brief google search of the apparent principal author, Daryl Bem indicates he has been out to try and "prove" or manipulate the data into proving psychics do exist since at least the 90s.