James Charles Crumbaugh

James Charles Crumbaugh (1912-2001) was an American psychologist and parapsychologist.

Crumbaugh was born in Terrell, Texas. He became interested in parapsychology starting in 1938 which led to a Master's thesis. He received his Ph.D. from the University of Texas in 1953.

Crumbaugh who worked with the Parapsychology Foundation, carried out experiments into extrasensory perception. However, his results were negative. After thousands of card runs he failed to duplicate the results of Joseph Banks Rhine.