Kenneth J. Batcheldor, born in Britain in 1921, was a clinical psychologist who conducted a series of table tilting experiments in the 1960s and 1970s. Initially experimenting with the idea of table tilting sessions as a means of amusement, Batcheldor became intrigued when one such session resulted in the table lifting off the floor, seemingly by itself. He continued to experiment with the process and determined that one’s psychological attitude directly affected one's chance of successfully causing a table to tilt using psychokinesis (PK). He developed the concepts of “witness inhibition” – not wanting to see paranormal events – and “ownership resistance” – a refusal to believe that one is responsible for a paranormal happening such as a sudden table movement – and determined that these two psychological attitudes must be overcome to increase a sitter group’s chance of success. Two of Batcheldor’s experimental sessions were described in psychical researcher Guy Lyon Playfair’s book “If this be Magic” and his psychological concepts were used by Iris M. and A.R.G. (George) Owen in their “Conjuring Philip” experiment. Batcheldor died in 1988.