Expensive seems better: The price of a non-effective drug modulates its perceived efficacy.

Overall, these results suggest that the estimation of the doses administered mediated the effect of the price on the perceived efficacy of the drug, although we should be cautious about drawing conclusions of these exploratory analyses and consider (1) that our study was not designed to test this mediational hypothesis, and (2) that the effect of the recall of the administered doses on the effectiveness judgements is marginally significant.

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