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"post-hoc" refers to analyses that are decided upon after the data has been collected, as opposed to "a priori".
721 questions
4
votes
1
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113
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AIC prefers full model, interaction not significant — which to use for emmeans
I am using R.
I have the following data set:
...
- 103
2
votes
1
answer
50
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Adjusting p-values for single post-hoc comparison
I have a linear model in R
my_lm <- lm(Measurement ~ Group, my_df)
where 'Group' has 3 levels (UHR, CC, HC).
I use treatment contrasts to do the following ...
- 678
0
votes
0
answers
24
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interpreting pairwise comparison results from mixed effects logistic models
I conducted a mixed-effects logistic regression and obtained the results below. I divided participants into three groups based on the text they read, and all groups completed the same set of ...
- 89
1
vote
1
answer
84
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What statistical test to use here?
How to analyse this data?
The percentage of wound closure was determined for 4 different substrates + control group over 4 different time points (18, 24, 48 72 h). Each substrate had 3-4 replicates, ...
- 11
8
votes
1
answer
350
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Post hoc tests give no results
I am doing research on sex differences to a breathing protocol. I put a repeated measures anova, and then sex, and the pre and post breathing conditions. It gives me an output but wont let me run the ...
- 81
0
votes
0
answers
53
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2 (within) x 2 (within) x 2 (between) design: three-way interaction post-hoc test
I'm currently working on my master's thesis and would really appreciate some advice on the appropriate statistical analysis for my design.
Study context:
My research examines the stress reduction ...
- 3
0
votes
1
answer
59
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Repeated measures ANOVA or one-way ANOVA for within-subject design?
I'm currently learning statistics and would like to ask for advice on the appropriate analysis method for the following study design.
I conducted an experiment with 10 participants, where each ...
- 1
0
votes
0
answers
96
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Post-hoc test in R for lm() with significant interaction between numeric and multiple categorical variables
I am interested in how the relationship between two traits (trait1 and trait2) varies between groups (A and B) and treatments (C and T). Specifically, I want to know whether the relationship between ...
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4
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1
answer
151
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4
votes
2
answers
434
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Which is better - FDR or Holm-Bonferroni? [closed]
I am conducting an auditory flanker task with monkeys. It is a within-subjects design with 4(6 soon) subjects and has 4 conditions. I want to run pairwise comparisons after running a one way RM ANOVA. ...
0
votes
0
answers
90
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Post-hoc comparisons on align rank transformed (ART) data
I am currently trying to finish up data analysis on a behavioral study with salamanders where I have two different treatments (stress & non-stressed) and two different status types (intruder vs. ...
0
votes
0
answers
48
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GLMM for count data with random effect of Subject in small sample size with risk of inflated type I error, how to infer factor effects and post-hoc
I am a newbie in GLMM. My data designed with repeated measures involved 9 subjects, each subject performed in duplicate, the count as a response. Since dispersion, the model of negative binomial was ...
- 1
0
votes
0
answers
28
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Follow-Up Analysis of a MANOVA Main Effect using DDA (Descriptive Discriminant Analysis)/CDA (Canonical Discriminant Analysis) in R
I conducted a 2x2 MANOVA with 9 dependent variables and found a significant main effect for one of the independent variables, which I want to examine further. So far, I have run univariate ANOVAs with ...
1
vote
0
answers
42
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Can I run a series of one-way PERMANOVAs or Dunn's as post-hoc test after a two-way PERMANOVA?
I want to test if the concentration of metals in some birds were influenced by age, sex or tissue. I had to run two separate models of two-way PERMANOVA, one for age x tissue and another for sex x ...
- 11
0
votes
0
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34
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Is there a way to run a post-hoc test with ARTool transformed model that has interactions?
I am trying to conduct a post-hoc test on my ARTool model in r studio but since in my data the individuals are tested twice I get a lot of errors when I try to include their ID into all the code I ...