A new book has recently been published
At $45 it's a bit pricey, but for those who don't know, Floyd Toole is THE leading expert at how to scientifically determine listener preferences in audio reproduction. His work with blind listener tests set the standard for the field.
Read the product synopsis and the single customer review by Siegfried Linkwitz. I like where he says, "(this book) debunks much of the BS that seems to have permeated the audio industry and many of its customers."
It's going on my wishlist.