On Tue, 04 Apr 2000 17:41:27 GMT, Madewell <[EMAIL PROTECTED]>
wrote:
> Let me ask you guys this. If you calculated the power for
> the Chi-Squared test using both a small and then a large numbers and did
> the same for the KS test what would you find?
>
Which chisquared test? I keep reminding myself that there are an
awful lot of tests that are ideal, or close to it, that just happen to
test *different hypotheses* - and it is rather nonsensical to compare
tests without having that in mind.
The best power the KS is likeliest to appear (though it might be
elsewhere) at the median split. If you figure beforehand on a median
split, you could test that single, special hypothesis with a
chisquared, and that chisquared would outperform the KS for that
alternative.
Of course, using a bunch of not-ordered categories will give you a
weak test on ORDERED values, compared to any test that does treat them
as Ordered, whether you collapse them into categories or not.
--
Rich Ulrich, [EMAIL PROTECTED]
http://www.pitt.edu/~wpilib/index.html
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