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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Which test to use? |

Date |
Thu, 19 May 2011 09:28:26 +0100 |

I don't follow this. To start with, 1. If there is some rule mapping -decision- to -X- and -Y-, then there is no information in -X- -Y- that is not in -decision-. If you have a quantitative variable and a categorical reduction of it, it is usually better practice to use all the information available. 2. I don't see how you can compare the frequencies of -X- and -Y- without in effect reporting (consequences of) your rule in #1. Nick On Thu, May 19, 2011 at 9:12 AM, Toby <spiegeldesaster@googlemail.com> wrote: > Hello, > > I have data of the following character > > > decision X Y > 34 1 0 > 34 1 0 > 56 0 0 > 77 0 1 > 23 0 0 > > > X and Y take the function of categorizing the variable decision. If I > take the mean value of X I get the frequency of decision that could be > classifed as X, the same holds for Y. It could never be that X and Y > take the value 1 at the same time. > Now I want to test whether the frequency of X is significantly > different from the frequency of Y. Can anybody help me figuring out > which statistical test I have to use? * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: Which test to use?***From:*Toby <spiegeldesaster@googlemail.com>

**References**:**st: Which test to use?***From:*Toby <spiegeldesaster@googlemail.com>

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