Блог Mind Hacks дает ссылку на исследование психолога Франчески Джино из Карнеги Меллон, утверждающее, что люди более склонны серьезно воспринимать советы, за доступ к которым нужно было заплатить, чем “бесплатные” советы. Причем чем дороже совет, тем больше к нему будут прислушиваться:
Dozens of students were asked questions about American history and received small cash prizes for correct answers. The students were either given the option of receiving advice on the correct answers, or advice was imposed on them. Sometimes this advice was free; other times it was paid for out of the students’ winnings. Crucially, the advice always came from the same source – in the form of the answer that a student from a pilot session had given to the same question – so the quality of advice was held constant regardless of whether it was free or paid for. Throughout the study, the participants took more account of advice they had paid for than advice they were given free, even though it was made clear to them that the advice was of the same quality. A final study showed the students took even more account of advice if it was made more expensive.
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