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Knowing the source doesn't matter
As the article stated, the subject knowing the source changed no scientifically measurable indicator. I believe the rating that was collected was quite simply people not wanting to be too hard on other people. Also, If you are told you should dislike something, you are going to rate it lower, regardless of whether you think it is worse. If you are told you should like something, you are probably going to rate it higher. This, combined with the previously mentioned natural care for other human beings, explains why people rated the sound lower when told it was a chalk board vs a musical piece.
Posted by Patrick Aupperle
1st Nov 2011