Talk:Wilcoxon signed-rank test

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Im no expert, but pretty sure that this test can also deal with ORDINAL data

NO! Since you are subtracting two values (e.g. pre vs. post) it has to be interval data, not just ordinal. --Statprof (talk) 17:18, 15 April 2008 (UTC)

I'm pretty sure it could work with ordinal (Ratings of women after 5 pints of beer?) —Preceding unsigned comment added by 128.243.253.114 (talk) 21:06, 21 April 2008 (UTC)

The test is in parts not well described, even I, as someone who teaches statistics, have difficulties to understand the test fully from the text. sigbert Mi Apr 11 08:09:57 CEST 2007