Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

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Re: Type 2 errors are not possible with blind tests. Leventhal was completely wrong about Type 2 errors which do not ex

Posted by andy19191 on December 12, 2006 at 01:56:55:
> Blind tests are never used to prove inaudibility of differences.
> If any blind test participant claims his test proves these two
> components sound the same, then he is merely jumping to conclusions.
Why?
In an experiment, if one can determine to what level of confidence the results are drawn from a population of those that can hear differences then one can also determine to what level of confidence the results are drawn from a purely random population.
If you are working to, say, a 95% confidence level then you can certainly have sets of results which are inconclusive and satisfy neither hypothesis.