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1 vote
1 answer
111 views

OLR for non-normal continuous dependent variable with two categorical independent variables?

ID Sex Surface B1 1 female UN 1255 2 female UN 542 3 female UN 818 1 female UN 274 2 female UN 261 3 female UN 314 1 female UP 552 2 female UP 548 3 female UP 721 1 female UP 431 2 female ...
Noob29's user avatar
  • 11
1 vote
1 answer
241 views

Which statistical test should I use if the assumptions of a 2-way ANOVA are not met?

My study design consists of two factors (one with 2 levels, the other with 6) and a continuous response variable. In order to analyze the influence of both factors on the explanatory variable I built ...
Insect_biologist's user avatar
6 votes
4 answers
3k views

Is there a non-parametric form of a 3-way ANOVA?

I am currently in the process of writing a publication about the home range of cat shark species in South Africa. However, I am currently struggling with how to create an interaction model of shark ...
Tom Johnson's user avatar
1 vote
0 answers
354 views

Is it OK to use GEE insetad of GLM for non-repeated data?

I analyse data, that are repeated (pre-post), but I work with change from baseline instead. This is a non-randomized experiment, so I was advised to run this kind of analysis bearing in mind the Lord'...
Grunal78200's user avatar
1 vote
1 answer
810 views

How can I predict a continuous outcome variable with 1 binary and 1 ordinal predictor variable nonparametrically?

I have a binary predictor variable (situation1, situation2) and another one that's ordinally scaled (levels in an n-back task, they're called no-back,0-back,1-back & 2-back with 2-back being the ...
Merle's user avatar
  • 11
1 vote
1 answer
603 views

Kruskal–Wallis one-way analysis of variance is related to what kind of regression?

One-way anova is similar to regular linear regression because both use the F-test which involves sums of squares among other reasons. Is Kruskal–Wallis one-way analysis of variance similar to some ...
user avatar
8 votes
2 answers
4k views

General approach for non-parametric two-way ANOVA

Apologies for the almost text-book like question. I have a 2x2 design with fixed categories and a continuous response variable. If the variances are equal between groups (Bartlett test) and ...
Yannick Wurm's user avatar