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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: We may be refering to the same study. posted by Pat D on January 10, 2007 at 18:50:28:
I think Dr. Toole and Harman did some good work, but I wish they had gone further with the sighted bias study. After going from sighted to blinded, and finding some switching in speaker preference among the subjects, it would have been interesting to have another sighted listening session to determine if the subjects tended to return to their original sighted preferences. I think it is assumed that evidence from blinded tests will change listener's minds, and they won't return to a previous subjectively founded preference or belief, but I have never seen a study that addressed that question.When blinded the subjects changed their preference from an expensive pair(which as I recall were thought attractive) to a less expensive system with sub-woofer. It's not difficult for me to imagine some subjects again prefering the more attractive and easier to set up pair than the system with sub-woofer. If a subject was considering a purchase, looks could (perhaps even should) trump a small difference in performance.
I am puzzled by the apparent inability of the subjects to recognize the system with subwoofer when blinded after first hearing it while looking at it. Wasn't its bass performance different than that more expensive pair of speakers?
I'm not sure I understand your comments on the placebo effect in medicine. The study we were discussing helps confirm my suspicion that the effect of mind on body has been overblown. I also recall when impotence and ulcers were attributed to the mind. So I'm a bit skeptical about the power of sighted bias.
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Follow Ups
- Re: We may be refering to the same study. - okiemax 22:53:17 01/10/07 (0)
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