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Topic: nominal scale - comparison of populations
Replies: 3   Last Post: Dec 30, 2012 4:14 PM

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Posts: 5
Registered: 12/22/12
Re: nominal scale - comparison of populations
Posted: Dec 30, 2012 4:14 PM
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On Monday, December 24, 2012 3:02:21 AM UTC+1, Ray Koopman wrote:
> To compare the groups on a single question, do a Pearson chi-square on
> the corresponding 2 x K contingency table, where K = the # of possible
> answers to that question. If you do that for several questions, you
> should adjust your threshhold for declaring a result "significant".
> The simplest procedure is the so-called "Bonferroni correction": a
> test is significant only if the product of its p-value times the
> number of tests is less than the usual threshhold (e.g., .05).

Thanks a lot!

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