Study of the placebo effect with a placebo test.
D000367:Age Factors; D000704:Analysis of Variance; D001318:Authoritarianism; D006801:Humans; D007360:Intelligence; D010919:Placebos; D012392:Rorschach Test; D013404:Suggestion; D013803:Thematic Apperception Test
D010919:Placebos