Thus we need to use a test protocol which would give well defined results in the absence of telepathy so that we can recognize the presence of telepathy by its significantly different test result. The test data must thus be statistically well behaved. It must also be possible to make an unambiguous comparison between the transmitted and received information. The old zener card experiments, for all their practical flaws, were superior in the methodological sense and will be used as a model for the present purpose. Assessing the results In telepathy tests even the best results differ little from what would be expected from random guessing.
High scores are rare, consistent high scores are almost unknown.
Do it again. The classical tests used a freshly shuffled pack of cards which could be assumed to be in a random order. Both the sender and the receiver had to make a list of the cards so that the lists could be compared after the experiment. This, of course, only indicates the probability of that result occurring in the absence of telepathy. It should not be interpreted, as was done by early experimenters, as the probability that telepathy does not exist.