Abstract

A selected high-scoring ESP S was tested for success in identifying whether the white or green faces of cards sealed in opaque envelopes were presented upwards. 20 cards were randomized and sealed in envelopes in an unknown order. These envelopes, marked for identification and recording, were further randomized by 1 E and enclosed in opaque outer covers out of sight of the S and the 2nd E. Thus S had no sensory knowledge during each run regarding which side of the enclosed envelope (card) was toward him. Nevertheless in attempting to identify each card 250 times in the experiment he showed a highly significant concentration of success on certain ones and only chance results on the others. In a few cases there was consistent miscalling of the faces in particular envelopes. The focusing effect raises questions requiring further investigation.