All Questions
Tagged with wilcoxon-signed-rank statistical-significance
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Test for statistically significant difference: Wilcoxon vs Median Permutation
I have a dataset that shows measured 'perceived quality'(dependent variable), by two different sizes in the context of 4 different intensity levels (200 values for perceived quality in each category, ...
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1
vote
1
answer
183
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What do these Wilcoxon values tell me?
I did a pre and post-test with a small number of students ($n=12$).These values came after a science intervention that took $4$ weeks. I used a Wilcoxon test for 2 related samples as there was not a ...
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217
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What exactly does the “symmetric distribution” assumption of the Wilcoxon signed-rank test refer to? [duplicate]
I have two lists (or sets) of data that I would like to statistically compare. More precisely, I would like to check if the difference between data list one and data list two is statistically ...
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3
votes
1
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53
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Test on significant difference
I need to test if there is a significant difference in leakage between prototypes. I've tried kruskal wallis and post hoc wilcoxon pairwise and Dunn-Bonferroni test, and the post hoc test always say ...
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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 ...
4
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2
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3k
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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 ...
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2
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2
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995
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Wilcoxon.test in R will not calculate exact distribution due to ties (scipy.stats.wilcoxon will)
I'm running a pre-post hypothesis test on a small dataset, due to it's size n = 12 I am running the test for the exact distribution.
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0
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0
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deciphering between statistical tests
I want would like to test if the mean iron
concentrations were higher at delivery time in the vaxx
group compared to the placebo ,what hypothesis test would i use
user352099
3
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2
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Statistically Comparing the Similarity Between Lists (e.g Food Preferences)
I have the following question: Are there any statistical methods (e.g. hypothesis tests) that allow you to compare the order of two different lists?
Suppose there are two students : John and Sarah. ...
0
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1
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145
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Wilcoxon test or paired T test for matched data
I am working on comparisons between two time points 2013 and 2019, I have 180 subjects. I have a numeric "score" from 2013 and 2019. I calculated the average score at both time points and ...
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1
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Understanding the statistical scenario using R with basic concepts
I am new to statistics, trying to solve below problem,
Two companies selling toothpastes with the lable of 100 grams per tube on the package. We randomly bought eight toothpastes from each company A ...
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447
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Statistical significance test for 5-fold cross validation on a single dataset
I have used stratified 5-fold cross validation to generate five data folds to compare several (N) deep learning models on a single dataset. Now, I have the fold-wise test accuracies for all of the ...
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-3
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1
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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?
- 95
2
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1
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321
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Comparing classifiers for multi-label classification predictions
I have a multi-label classification problem (categorical predicted values: A, B, C, D) and I want to test the null hypothesis that there is no significant difference between the classifiers, and the ...
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1
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Wilcoxon-signed rank test gives non-significant difference on obviously different samples?
I have two samples:
...
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