On behalf of the Air Ministry and War Office he returned to Cambridge to undertake research into acoustics, with special reference to psychological problems.

He investigated the mediums Kathleen Goligher and Gladys Osborne Leonard and he set about studying psychical research in more detail.

[3][4][5][6] Criticism of Carington's tests on mediums came from C. D. Broad and R. H. Thouless who wrote he had made statistical errors and misinterpreted numerical data.

"[10] However Frank Finger gave the book a negative review in The Quarterly Review of Biology claiming Carington failed to present any scientific data that could be intelligently evaluated and concluded "it seems doubtful that this book will alter the scientific status of telepathic communication appreciably, and certainly it will cause no great upheaval in the field of biological science.

"[13] Carington's ideas about telepathy inspired the novelist Iris Murdoch who wrote "His theory, though wrong I've no doubt, is interesting.

"[14] The philosopher Antony Flew wrote the verdict seemed to go against Carington's hypothesis because it "commits him to saying that the various sub-laws of association (those of Recency, Repetition, etc.)