DISCUSSION: Dr. Rudolph Loewenstein stated that the question was whether a certain number of psychic phenomena co-exist which constitute a group of functions that can be usefully grouped as a substructure—a construct. In regard to the discussion of the nature of evidence, Dr. Charles Brenner cited Freud, who stated that interpretations can be confirmed because the data are repeated from case to case. Concerning Dr. Mayer's comment on not trying to prove as 'true' something that is essentially theoretical, Dr. Brenner asked what 'true' means; it is a nonscientific word.

Dr. David Beres wondered, if we are unable to agree on a fundamental definition or construct, are our candidates being taught the use of logic, the