All Questions
20 questions
2
votes
1
answer
35
views
Reporting Hierarchical Regression Results in Abstract
I did a hierarchical regression test in a social science study looking at how two variables (A and B) and their interaction term can predict variable C. My mentor told me to write in the abstract that ...
- 21
1
vote
0
answers
81
views
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
62
views
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
0
votes
0
answers
114
views
how to use graph_model in reghelper correctly
I spent so many hours trying to create bargraph for lmer in R but I cant find a way to get each condition group mean to vary.
I want to plot the following model
...
- 21
1
vote
1
answer
706
views
can i compute an interaction variable by multiplying a standardized variable and a mean centered variable?
I need to do a multiple hierarchical regression analysis for my master thesis.
my continues independent variable is: online exposure to cannabis use. I used five items/questions/variables to compute a ...
- 11
0
votes
1
answer
422
views
How to interpret interaction becoming non-significant after removing one non-significant main effect from model?
I am interested in an between-within interaction in a hierarchical logistic regression. I start my analysis with a model including all theoretically relevant predictors, including the between factor A,...
- 113
0
votes
1
answer
32
views
How to interpret interaction in the absence of main effect? Multilevel Modeling
What is the substantive interpretation of an interaction in the absence of a main effect? Statistically I understand that the interaction modifies the main effect, but how to interpret this from a ...
- 235
0
votes
1
answer
72
views
3
votes
2
answers
295
views
Multi-level / mixed-effect / hierarchical linear regression. Model and interpretation advice? [closed]
I want to run and then report a multi-level model on the ChickWeight data in R.
I have done several analyses of which I have a few questions. I've been told the AIC is a good way to test a model's ...
4
votes
1
answer
163
views
Cross levels or interaction term for repeated measures multilevel model?
I'm new to both regression and multilevel modelling, and I'm having trouble with the analysis for my experiment design.
For my study, we are having subjects come in and solve 2 problems. Each problem ...
- 43
3
votes
1
answer
4k
views
interactions involving two continuous predictors with emtrends
Let's say I have a model with two continuous predictors (nitrogen and temperature) and one categorical variable (variety).
<...
- 1,629
0
votes
0
answers
25
views
How to model and measure cross-level interaction among multiple levels of data
I have a weekly data at Brand Level, Sub Segment level and Segment level (the other two are derived from rolling up the Brand level data). The data includes product characteristics, sales, marketing ...
- 101
2
votes
0
answers
530
views
Multilevel Binary Logistic Instrumental Variables Regression
Context
I have hierarchical data where individuals ($i$) are nested in groups ($j$) and am interested in examining the degree to which a continuous group-level variable ($X_j$) moderates the effect ...
- 21
4
votes
0
answers
216
views
What is the difference between bi-level linear models and models with interaction terms?
My question is triggered by this question. I can't see that it has been asked here before, even though it looks like a natural enough question.
Suppose I have hierarchical data. The Wikipedia article ...
- 1,042
1
vote
0
answers
65
views
Data Analysis Question from a Stats Novice (Hierarchical Multiple Regression and sample size assumptions)
I'm working on my dissertation and have only a very basic knowledge of stats. I am assuming all of you have a much better understanding and I need some clarification:
I am comparing two groups (...
- 11
1
vote
0
answers
897
views
Hierarchical Regression Moderator Analysis
I ran a 2-block hierarchical regression to test for moderation. In the first block I entered the centered IV and centered moderator variable (MV) and in the second block I entered my centered ...
- 11
2
votes
1
answer
68
views
Some Terminology in Multilevel Analysis
What is the meaning of the following terms in multilevel analysis:
cross-level interaction;
micro level;
macro level?
- 1,705
0
votes
1
answer
2k
views
Multi level regression with interaction using R lme4
I'd like to do a regression analysis with interactions, my data has two levels (school classes and pupils). My variables are: Predictor = dummy variable on Level 1, dependent Variable = metric on ...
0
votes
1
answer
5k
views
Differenence between hierarchical linear regression and moderated multiple regression
What is the difference between hierarchical linear regression and moderated multiple regression? If I have one and two moderator variables and my models are:
model 1- IV
model 2- adding two ModVs
...
- 3
4
votes
2
answers
7k
views
Evaluating effect sizes of interactions in multiple regression
I have been running 3-level multilevel models with HLM, and my main interest is in some cross-level interaction effects that I am finding. My concern is that the effect sizes of these interactions ...
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