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4
questions
3
votes
1
answer
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Calculating statistical power for non-parametric data (using Wilcoxon signed-rank tests)
I am performing a prospective-design analysis of Patient Reported Outcome Measures from a registry of patients. I have used Shapiro-Wilk test throughout to test for normality.
All data is paired and ...
2
votes
1
answer
2k
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How to graph Wilcoxon test power R
I've been trying to calculate and graph the correspondent power for the wilcoxon signed test and haven't had any luck.
I tried simulating two normal distributed samples, apply the wilcoxon test and ...
- 21
0
votes
0
answers
2k
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Select from Sign Test and Signed Rank Test based on assumption or power
I'm testing the difference of a paired dataset. I need to select between sign test and Wilcoxon signed rank test. I have read ...
- 155
9
votes
1
answer
5k
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Relative efficiency of Wilcoxon signed rank in small samples
I have seen in published literature (and posted on here) that the asymptotic relative efficiency of the Wilcoxon signed rank test is at least 0.864 when compared to the t test. I have also heard that ...
- 1,183