Katie, having experienced this kind of thing before, calls in a parapsychologist.
From the charlotteobserver.com
A parapsychologist and three others stay in a house reputed to be the site of many awful tragedies.
From the post-gazette.com
Ian Stevenson, a parapsychologist and psychiatrist at the University of Virginia, claimed there were just a handful of suggestive cases.
From the en.wikipedia.org
Robert Morris, a respected experimental parapsychologist from the United States took up the position, and with his research associates and PhD students pursued a comprehensive research programme.
From the en.wikipedia.org
More examples
Someone who studies the evidence for such psychological phenomena as psychokinesis and telepathy and clairvoyance
(parapsychological) beyond normal physical explanation
(parapsychology) psychic phenomena: phenomena that appear to contradict physical laws and suggest the possibility of causation by mental processes
(Parapsychologists) Parapsychology is a discipline that seeks to investigate the existence and causes of psychic abilities, near-death experiences, and life after death using the scientific method. ...
(Parapsychology) Literally beyond psychology. The study of apparent new means of communication, or interaction, between organisms and their environment (commonly referred to as psi, or psychic ability), beyond those presently understood by the scientific community.
Parapsychology is the study of seeming mental awareness of or influence upon external objects, without any physical or energetic means of causation which scientists currently understand. ...
(Parapsychology) The scientific study of paranormal phenomena.
(Parapsychology) The branch of science that studies psychic phenomenon
(parapsychology) A branch of psychology concerned with phenomena that are not presently explained by the application of known psychological principles