To be precise, the experimentators checked the placebo effect in this experiment in the following way: one group receives the self-esteem subliminal tapes (they think they were given the memory subliminal tapes), another group the receives memory tapes (they are convinced that they get the self-esteem tapes). Just to be precise.
If they are here psychologists and other persons that know different researches and know the subject, it could be interesting.
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