magiccarpetride wrote: > Double blind listening tests are tricky at best because they tend to > deliver a lot, and I mean a lot of false positives. There are well > documented cases where sufficiently large population of double blind > testers were reporting significant differences in the sound quality > while in reality the experimenters were merely playing an identical > configuration over and over and over. Funny how human psyche functions. > Highly unreliable.
With true 'Double Blind' trials the experimenters would not know what was being analysed (played) either - that would be done by a third and independent party. A statistically significant number of tests would have to be carried out and statistical analysis applied to determine the probability that a significant result (positive or negative) had been achieved. This is provided by using a confidence scale or in medicine a p-value. The statistical analysis can be very complex. Bob ------------------------------------------------------------------------ bobertuk's Profile: http://forums.slimdevices.com/member.php?userid=30376 View this thread: http://forums.slimdevices.com/showthread.php?t=94418 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
