Steve Ziliak
speaker
34 appearances
1 recordings
1 series
first heard Apr 2011
last heard Apr 2011
Steve Ziliak’s voice in public audio — every appearance, attributed to the second.
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Appearances
The scientists who created Zycam knew that there was a difference between zinc glutamate at a certain proportion compared to the others.
Otherwise, they wouldn't have used it.
But the more oomph you get from the benefit oftentimes means the more oomph you risk getting on the downside.
That's absolutely correct.
Because a third major problem with the test of significance is that it's possible to get your significance test, your p-value, if you will, below that 5% threshold simply by adding observations to your study.
If you increase sample size, other things equal, you increase statistical significance.
But let's think about what that means.
That means that individual scientists, let's say, especially if they have a commercial interest in the project, they really want to find a statistically significant difference between two things.
Well, one way they can do that is just get more observations.
But that doesn't sound very sensible.
That's not what we want.
What we want to know is what's the economic or clinical or medical importance, the practical importance of
of the quantitative difference between two or however many items it is that you're comparing at once, there's a big difference between magnitude and likelihood of magnitude.
And strangely enough, 90% of publishing scientists do not make that distinction.
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