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1 vote
0 answers
134 views

Alternative for Wilcoxon Test?

I'm ending my Master's Thesis, and I'm trying to figure out which test to use to calculate the significance of my data. Basically, we measured the Free Kick biomechanical parameters of several ...
Pedro Delgado's user avatar
4 votes
2 answers
3k views

How to interprete and describe the results of a Wilcoxon Signed Rank test?

I'm trying to learn about rank tests, and having doubts abouut how I should a result from a Wilcoxon Signed Rank test. Suppose, we are given: Z = -2.201, r = - 0.845, P < 0.05, then how should I ...
Error404's user avatar
3 votes
1 answer
178 views

Relationship between p-values and effect size

I did a Wilcoxon signed rank test to understand whether there is a difference in average sales in 9 different counties. There are multiple pairs of counties that are significantly different. Would it ...
Rnovice's user avatar
  • 45
0 votes
1 answer
398 views

One-tailed P-value is not half of two-tailed P-value for Wilcoxon signed-rank test always

I will explain by a hypothetical problem. Let's say I have pairs of [weight in morning, weight in night] from 10 people. Everyone weighs themselves multiple (random) times in morning (before noon) ...
Sympry's user avatar
  • 3
-3 votes
1 answer
868 views

What is a good P value for statistical significance when conducting a Wilcoxon Rank Sum test? [duplicate]

Is a P value of 0.4 statistically significant for a Wilcoxon Rank Sum test?
Jamerson2's user avatar
1 vote
1 answer
322 views

Do multiple wilcoxon tests of drug sensitivity between mutated grp and wild-type grp need multiple testing correction?

I am doing wilcoxon-rank-sum tests of the sensitivity (AUC) of over 1000 drugs between mutated gene A and wild-type gene A. So, for each drug, there will be one wilcoxon test and one p-value. Since I ...
Idiotsum's user avatar
1 vote
1 answer
118 views

There is very slight difference but also statistically significant. Could there be a mistake?

In my study to investigate the effect of filter glasses on reading speed and contrast senstivity in albino patients, there is little change in the reading performance level n:61 patients Reading ...
karaca's user avatar
  • 71
3 votes
1 answer
193 views

Is it appropriate to estimate the mean difference from a Wilcoxon p-value?

I am conducting a meta-analysis involving paired data (two instruments measuring the same thing). Original papers do not provide the standard deviation of the mean difference. One paper provides a p-...
G. Martel's user avatar
1 vote
1 answer
42 views

What does it mean if p-values differ

I have a data for 322 items that are purchased between 2014 and 2018 by men and women. If I ran a Wilcoxon Signed-Rank test with a Benjamini-Hochberg correction on the items purchased by men and ...
Angus's user avatar
  • 239
2 votes
0 answers
350 views

How do two of my Wilcoxon signed rank tests have the same p-values?

I'm running a statistical analysis where I'm comparing land surface temperature in matched equal sized areas (project areas and control areas) of different cities. In each city, I do it for two ...
Melissa's user avatar
  • 21
0 votes
0 answers
380 views

Comparing the performance of two algorithms with Wilcoxon Signed-Rank Test

I have two algorithms A and B which have to compute a solution to some problem. Each solution is given some objective value ...
Data's user avatar
  • 484
0 votes
2 answers
16k views

P-Values in Wilcoxon test

I have a question that if a p value less than 0.05 in wilcox test means that the two data are significantly different and the p-value of 1 means that are exactly same, then what is the meaning of a p-...
Khan's user avatar
  • 35