The Truth About Power Cords and there "Real" Price to Performance

"...a $75,000.00 TROY ELITE NG ground conditioning unit."

There must be a town of Troy somewhere trying to find $75000 in the next year's budget to improve stability of electrical grid.

"...over 85% of the time for 10 tries."

I guess it will have to be 90%. 85% might be eight correct and one "hmmm, I am not sure, may be this or may be that".

I tried something like that although not about power cords. It was boring.

In any case, difference was, if anything, small. In those moments we felt there was a difference, it was unclear if it was for better or worse. Waste of time.

If you need to do the test, the difference is negligible.

If, in a relatively decent system, your jaw drops with some cord change, or similar minor maneuvre, you'd better enjoy it as long as you can. The magic will go away with next cord available.

If you think it was not a minor maneuvre, you just learned you are very impressionable.

cleeds,

"The tester’s bias - or even his personality traits - can poison the test."

I think you are taking this whole thing a little too serious.

Whole thing with double vs. single blind test is also a little exagerrated. I may be wrong, but it seems you extrapolate some, not even all, clinical medical research practice and apply it to something that does not require that particular level of stringency.

True, double blind testing will practically always be easier to defend than single blind testing, but in this case it is just for argument’s sake and not for any real world application.

As far as science 101 goes, thousands of mice die daily during tests and experiments that are not blinded at all, not to humans at least, and results are considered valid and used for whatever purpose intended. Ok, mice do not know much about it so you could say it is single blinded.

Subtle cues during some cable swapping experiment could happen, but it is expected that a person doing swapping would be an adult with at least some self-control. I guess you could call it bias, but it should be negligible. What is swapper going to do? Wink at the listener when installing a certain cable he wants to win? Clear her/his throat at that time?

Again, double blind testing may be ideal but it also may not be necessary.

In cable swapping test, single blinded with a reasonably behaving swapper may be all you need. Fully sighted may not be enough, if you are really trying to be scientific.

I have been following your example. rpt. your example gffktai.

"Of course the big chicken 🐔 in the room is wire directionality."

Now, you are talking. Can we have some freezing story, too?