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1 vote
0 answers
132 views

What test to use when the dependent variable is an integer but independent variable is categorical? (Data non-normal, unequal variances)

My independent variable is species (categorical). My dependent variable is the total mass of what each species ate (in grams, numerical). I want to test the difference in mass values between ...
cgxytf's user avatar
  • 145
1 vote
0 answers
45 views

Non parametric tests for relation/association between variable

What could be an appropriate test for checking whether there exist any relationship between Net Promoter Score ( Categorical in nature with 0 meaning detractor, 1 meaning Neutral, 2 meaning Promter ) ...
IamKarim1992's user avatar
6 votes
1 answer
19k views

Are pairwise Wilcoxon tests a valid non-parametric alternative to Tukey's HSD test?

I am trying to identify significant differences between groups from normal and non-normal distributions. When the distribution is normal the workflow is pretty straightforward: ANOVA and after that a ...
RDGuida's user avatar
  • 213