Questions tagged [wilcoxon-signed-rank]
a non-parametric rank test to compare two paired samples, whether values in one are bigger than in the other. This test is NOT the same as the sign test.
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Statistical test for unequal sample sizes of repeated measures (non-parametric)
I'm looking to understand the differences between various sources (50) that evaluate an event based on 8 ordinal scales (varying from 2 to 4 values) associated with a discrete score between 0 and 10, ...
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Can Wilcoxon signed rank test be used with sample size of 4 paired data sets?
My Project compares pre-test and post-test ratios in addition to pre-test and past-test Likert scale. I planned to use Wilcoxon signed rank. I only have a sample size of 4. Can I still use Wilcoxon ...
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what is the meaning of “One-sample test.”？The following is clearly a two-sample test for wilcox.test
The code that inspired this question can be found here and below:
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Can Wilcoxon be used in large sample with non-normal distribution?
I am doing my undergrad research, aiming to know the difference of before and after an intervention.
our sample size is 37 which is already considered as a large sample right?
However, when we test ...
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Wilcoxon signed rank test in QI macros
I need some help in understanding the wilcoxon signed rank test. I am using this test on comparing two analysers. We ran the same samples on two analysers for the PT (prothrombin time), the results ...
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How should I analyze data that is paired and also repeatedly measured?
I have data collected from the same subjects (n=10) over 11 days, with measurements taken under two conditions each day: immediately after training(D0) and 30 minutes after training(D30). The data is ...
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Wilcoxon Sign Rank Test with differing list lengths [closed]
I am running a Wilcoxon Sign-Rank test with two lists. One contains 5 elements and the other contains 6. They were taken from the same place but under different conditions. I am trying to compute the ...
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Questions about equivalence hypothesis testing
The setup for the current question is the same as a previous question of mine, with one important difference: I have decided to go for a paired test, by always performing two consecutive experiments ...
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Wilcoxon Signed rank test for heavily tied paired data
We conducted an experiment to test the effect of a map annotated with the height of landscape features on participant's estimates of height relative to that recorded by a UAV. We asked them to record ...
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Comparing the ranking of effect sizes?
I have a lot of effect sizes, estimated from the same linear model, but where the tested explanatory variable is different. These models are run in two different groups, but it is the same model and ...
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Wilcoxon's Signed-Rank Test in the context of 2 algorithms and 1 domain
I'm trying to understand whether my analysis for a problem is in the right direction.
I have 2 algorithms (3d object detectors) that I've applied to the same dataset to obtain TP, FP and FN's for each ...
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How to compare semi-independent groups?
I need to compare the answers to a questionnaire (pre / post). The questionnaire was designed using a Likert scale. The two groups were made up of populations, some of whom were in both groups but ...
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Can I use Mann-Whitney U test for within group analysis?
I am conducting a within-group study where participants rate the perceived helpfulness of ideas on a Likert scale (DV) across two different days (Day 1 and Day 2), serving as the independent variable (...
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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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Basic question regarding before and after intervention analysis on groups of different sample size
Apologies for the basic nature of this question. I have collected data before and after an intervention and assessed response to the intervention using a survey. This was a basic survey using a 1-5 ...
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