"Arny Krueger" wrote in message
...
"Harry Lavo" wrote in message


Just because I ran
blind tests for about 25 years doesn't mean I really
understand it now, does it.

Tell us about all the blind tests you've done of audio gear, Harry.

That's all that would be really relevant.

Not so, Arny? Ever hear of "red-lighting" a test? Didn't think so. We
used it all the time in food tests....didn't "hide" the food, just "hid"
the sensory input ("color"). See any parallel to Steven's comment that we
don't actually have to be "blind" to run the audio test, just have no
knowledge of the equipment being tested.

The point is: their is a body of knowledge about test design...it simply has
to be adapted to the field under study. Most everybody running a "blind"
test knows that you are "blinding" the extraneous variables that could
influence the results, and in food research color is a key one. Nobody
assumes you have to litterally "blind" (as in the sense of completely hiding
or having the person shut their eyes) unless it is necessary to the test.

Steven was either being a bit naive or a bit presumptious about what I know
or don't know. And since he is an active participant on RAHE he certainly
knows my background.

As for blind tests on audio gear, Arny...probably three in the course of
forty years.