I read somewhere that one-third of the population are highly suggestive, one-third is rarely & of course, the rest would be in the middle. Recently I read that this is erroneous & based on some experiment done in 1955 that was misinterpreted. Since I didn't write it down at the time, I can't back up my information, but was wondering how placebo & non-placebo-prone people stack up? Has much research been done on this phenomenon? Are they weeded out in drug trials or is that part & parcel of the trials?