The Collaborative International Dictionary of English v.0.48:
parapsychologist \par`a*psy*chol"o*gist\ n. One who studies or is versed in parapsychology. [PJC]WordNet (r) 3.0 (2006):
parapsychologist n 1: someone who studies the evidence for such psychological phenomena as psychokinesis and telepathy and clairvoyance