“…Scores expressed as amount of learning. Studies of transfer which have expressed a raw score representing number of correct responses are to be found in references 8, 36, 41, 44, 52, 61, 73, and 76. In experiments on the transfer of conditioned responses (48,50,70,71,125,126), the score reported represents the number of occasions on which the transferred conditioned response is exhibited. The raw scores attained on tests (112) usually indicate the number of correct responses, although in some instances the scoring formula may involve the subtraction of a weighted error score.…”