Nonparametric statistics for the behavioral sciences Sidney Siegel
Publisher: McGraw-Hill

Practical Nonparametric Statistics. Nonparametric analysis of longitudinal data in factorial experiments. If it's ordinal, Siegel and Castellan's Nonparametic Statistics for the Behavioral Sciences has a whole chapter on measures of association for ordinal data. Siegel, S 1956, Nonparametric Statistics for the Behavioral Sciences, McGraw-Hill, Columbus, OH. Siegel, Sidney (1956), Nonparametric Statistics For The Behavioral Sciences, Mc Graw- Hill Book Company, İnc, Newyork. Nonparametric methods in factorial designs. Unlike parametric person-fit statistics, nonparametric person-fit statistics do not require fitting a parametric test theory model. Syrett, M 2007, Successful Strategy Execution, Profile Books, London. Nonparametric Methods for the Behavioral Sciences. Nonparametric statistics for the social sciences, (2nd ed.). Rank transformations as a Psychological Science, 18, 230-232. Stephens (1999), İstatistik, (Çev. Doi: 10.1111/j.1467-9280.2007.01881.x · PsycINFO · Cited By · DOI . Psychological Bulletin 74 (1970):138-140. Journal of Educational and Behavioral Statistics, 19, 237-273. If you think it is appropriate to treat your categories as continuous, a good candidate would be one of the variations of the intra-class correlation coefficient.