help [Nonparametrics]

posted by martin  – Austria, 2008-08-20 16:14 (5699 d 01:57 ago) – Posting: # 2207
Views: 8,401

dear shri !

first I would suggest a descriptive summary table showing percentage of scores by treatment

rows: treatment (a,b,c,d)
columns: scores (0,1,2,3)
cells: row percentages (total per treatment = 100%)

in the case that you are interested in a score of 3 between treatments I suggest to define a new variable with values of 0 (score<>3) and 1 (score=3). you may then calculate the treatment effect (odds ratio + corresponding confidence interval) between two treatments regarding the risk of experiencing a score of 3 (via logistic regression to model the whole data set like: new variable = treatment).

hope this helps

martin

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