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Topic: Learning clinical trial jargon?
Replies: 3   Last Post: May 26, 2006 7:59 AM

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Posts: 30
Registered: 3/24/05
Re: Learning clinical trial jargon?
Posted: May 24, 2006 1:59 PM
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How would one give a one sentence definition of "alpha error" as if
asked over dinner? Seems like the definition above is hinting at
"critical region" with the phrase "acceptable to investigator".
However, "relationship observed between 2 variables" is difficult to
fit into any decent definition of alpha error, because if I'm not
mistaken, alpha doesn't have anything to do with the data, just the
characteristics of the test. They do a little better with p-value . .

p value. The lowest level of significance at
which a given null hypothesis can be
rejected; that is, the probability of observing
a result as extreme or more extreme than
that observed if the null hypothesis is true.
See also statistical significance.

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