Mains filter test results
"Glenn Richards" wrote in
message
Jim Lesurf wrote:
You presumably were aware thoughout of what arrangement
was in use. You also seem to have only done this a few
times, not many times to form abody of data on which any
meaningful statistical analysis could be carried out.
We didn't worry about setting up a blind test at this
stage, as my concern was simply to find out whether there
was a difference, perceived, psychological, whatever.
Anybody with a clue about experimental design or psychology could predict
the outcome of your test without bothering to do it.
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