
Re: nominal scale  comparison of populations
Posted:
Dec 30, 2012 4:14 PM


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 chisquare 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 socalled "Bonferroni correction": a > test is significant only if the product of its pvalue times the > number of tests is less than the usual threshhold (e.g., .05).
Thanks a lot!

