Greetings sci.stat.edu, Forgive my ignorance, as statistics are not my specialty, but recently I did an analysis of a survey that included Yes/No answers. Most of the analysis used total yes answers per subpart and the totals were ranked and Mann Whitney Rank Sum.
However, I also analysed the individual yes/no questions with Mann Whitney Rank Sum, with adjustment for a tie. My boss insisted that I use Chi Squared for these individual tests and so I redid the analysis and came up with the exact same P values consistently. I reasoned that nominal data and ordinal data, become the same thing when you only have two categories or two ranks. Does someone know if these two tests are equivalent when dealing with binomial data? Thanks a lot, Yossi . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
