All Questions
Tagged with multiple-comparisons mixed-model
85
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Steps to conduct a linear mixed model and post-hoc comparison test
I would like to ask for your help with the best way to analyze the following experiment within R.
Here is my design: there are 15 treatments, in four blocks. For each treatment, in each block, we have ...
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1
answer
34
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Mixed Effects with repeated measures design and covariate included
I have a dataset that consists of the oxygen consumption (MO2) values for 3 different species of fish. My experiment was a repeated measures design where I measured MO2 of the same 14 fish per species ...
- 31
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is it acceptable to do pairewise comparisons for mixed regressions that aren't independent?
I have a model specified as lmer(log(dv) ~ chosen*tasktype +(1|id)+(1|qs), data)
The key issue in the data is that the groups are not indepedent, i.e., ...
- 111
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Pairwise trend comparisons for a joint model
I have built a joint model for longitudinal and survival data using the jointModel function in JM. I would like to perform pairwise comparisons of three trends of the longitudinal outcome of the joint ...
- 1,109
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Possible to estimate random effects of a two-level factor? [closed]
I want to conduct a two-way ANOVA with a mixed effect model using lme4. The trial detail is Factor A with 3 levels and Factor B with two levels (3x2) replicated on ...
- 11
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2
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484
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multiple linear mixed models - multiple comparisons adjustment
I recently started to work on a case-control study using repeated measures over time (Modeling repeated measures data in R - Interpretation and Validation). I have several dependent variables and I ...
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3
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632
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What type of pairwise test does emmeans run?
Can someone please explain what kind of test emmeans runs when using the pairs function (is it a paired t-test between levels)?
I have a linear mixed effects model ...
- 255
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11
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How to identify a set of n-highest intercepts after running a series of mixed models
I have a data frame that contains multiple dependent variables and multiple entries per subject. I don't have any regressors in my model, I am just interested in the global intercept. For each of my ...
- 213
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42
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Multiple linear models and multiple comparison correction
I have run a PCA from which I have extracted 4 components. Each component will be used in a multilevel model as the outcome variable. The four model will have the exact same predictor variables, 4 ...
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Mixed model development for repeated measures over 3 years
I have longitudinal data for multiple plant varieties, where plants were measured for their Performance at 10 time points (time) each year for 3 years.
Each variety (genotype) serves as a distinct ...
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51
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Pairwise correlation based on effect size values with missing values of some variables
I have data with seven variables and I want to calculate pairwise correlation (also the significance level of each correlation). The data I have is the effect size of a treatment on these seven ...
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231
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Multiple group comparisons in a linear mixed-effect model
[The background]
I have a category variable called group, which has five levels indicating the types of populations (g1, ...
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How to design contrasts for a three way mixed effect model with interactions?
I have an experiment which comprise a numerical dependent variable, say a feature such as growth_rate, and three independent factor variables describing where the samples were collected, i.e. locality,...
- 207
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1
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297
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How do you conduct contrasts (pairwise comparisons) for a lmer() when your IV is continuous?
I am using lmer() to run an analysis with one categorical variable with 2 levels (task) and one continuous variable (farFC). Below is the model:
...
- 113
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What is more appropriate - a series of planned t-test or planned contrasts over a model?
Let's assume I want to compare two approaches to servicing some electric device. I have some performance indicator and I measure it over time, repeatedly.
There are 10 measurements + baseline (before ...
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