All Questions
10 questions
1
vote
0
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81
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Moderation in linear mixed model
I ran a Linear Mixed Model in R with 2 centered predictors and a Group variable.
fit1a <- lmer(DV ~ Predictor1*Group + Predictor2*Group + (1|...), data)
One of ...
- 11
0
votes
1
answer
63
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Between-person level interaction
I have a database called dat1. Each participant (id) had multiple measurements. One of the variables measures type of the stress called stress_type (acute=0, chronic =1) and another variable is the ...
- 11
0
votes
1
answer
62
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Can I disentangle an interaction in a multilevel model by reordering factors?
I have a multilevel model with two factors (factor A - 2 levels; factor B - 3 levels) and continuous covariate, all of which interact. There is a random effect of participant and random slopes on the ...
- 15
1
vote
1
answer
166
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Group level interaction or mixed effects model
I have a model where I expect the relationship of my independent variable of interest and the dependent variable to decrease over time (year in my case).
Now I have three approaches to measure such a ...
- 31
1
vote
1
answer
31
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Need help with analyzing data from within subjects design study
I am planning to conduct a within-subjects design study, and I am wondering if data analysis can be done using multi-level analysis.
IV and DV will be continuous variables. Moderator will be binary, ...
- 11
2
votes
2
answers
124
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interpreting intercept in lme4 when having within and between subjects variables and interaction
I am testing the effect of priority (which is a continuous within subjects factor) and viewing condition (which is a factor and a between subjects factor with 2 levels) on error. So the condition ...
1
vote
1
answer
242
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Centring in three levels multilevel models with cross-level interaction
I am relatively new to multi-level models subject and find it challenging to connect theory to modelling.
My interest is to examine the moderation influence of green space (at level 3) on the ...
- 136
2
votes
1
answer
2k
views
Clustering and interactions in a multilevel model in R
We are conducting an individual participant level meta-analysis on a series of clustered randomised controlled trials, where we are mainly interested in an interaction effect with a characteristic (...
- 150
3
votes
1
answer
1k
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Interactions between levels in lme4
We are implementing multilevel models in lme4 and have a question about how to handle cross-level predictors. This is a psychology experiment where individual participants come into the lab and ...
- 173
3
votes
1
answer
4k
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Specifying Cross-Level Interactions in LMER [closed]
I am trying to figure out if it's okay to specify cross-level interactions in a hierarchical model with fixed effect predictor variables at both levels using the ...
- 31