All Questions
Tagged with likelihood-ratio mixed-model
39
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How to report results from the likelihood ratio test of two lme models?
I am trying to find an appropriate way to report the results of the likelihood ratio test in a paper. I wrote:
The likelihood ratio tests reported a significant main effect of FE (χ²(1)=6.06, p < 0....
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Understanding residuals vs. fitted plot for a linear mixed model
I am modeling body mass (y var) according to indices of dysregulation for different physiologic systems (x vars). I did a likelihood ratio test, which supported using a linear mixed model, with a ...
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Comparison of multilevel models via deviance test
I have a question regarding the comparison of the following two multilevel models:
Null model: outcome.nullmodel <- lmer(outcome ~ 1 + (1 | ID), data=multileveldata)
Random slopes model: outcome....
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Likelihood ratio tests vs. ANOVA for interactions in linear mixed model
I am analyzing a longitudinal study where patients received either treatment 1, treatment 2 or no treatment (placebo) using linear mixed models (LMM) in R. I have a baseline measure that is related to ...
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When using a likelihood ratio test to test for significance of a main effect, should I use the most maximal or minimal model as a base model?
Lets suppose I have a set of n covariates, and I want to test for the significance of the main effect of covariate i. I want to do this using a likelihood ratio test; fitting a model with covariate i ...
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Does there always exist for n small, a non-chi-squared test-statistic for the likelihood-ratio (neyman-pearson, karlin-rubin), score, and wald-tests?
An additional reason that the chi-squared distribution is widely used is that it turns up as the large sample distribution of generalized likelihood ratio tests (LRT).[6] LRTs have several desirable ...
user318514
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Likelihood ratio test for random intercept (MATLAB)
I need to program a likelihood ratio test for testing the significance of a random effect in a linear mixed model in MATLAB. But I am having some trouble finding out how to correctly specify the null ...
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Do I have to drop a random slope if I drop the fixed effect in mixed-models for model comparison?
I'm performing a model comparison using the likelihood ratio test in R with two mixed models fitted with lme4.
My model is:
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2
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235
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On the P-value of the variance of random intercept in glmer model
I'm using a logistic mixed-effect model with random intercept through glmer function from lme4 package. I want to test the ...
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Comparing model efficiency
I hope you all don't mind me asking this question.
I have two models :
general linear mixed effects model
...
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Likelihood ratio test for mixed effects model
I'm currently struggling with how to assess the type I error of a permutation test for significance of variance term in R. The idea that I want to follow is outlined below:
Suppose we simulate data ...
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LRT comparing a random effects model and nested logistic regression model
I have a logistic regression model of the structure y ~ x1 + x2, and a generalized linear mixed model (GLMM) with random intercept and random slope, of the ...
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Comparision of mixed effect models via likelihood ratio test and assumption of homogeneity of variance
I would like compare different models with increasing complexity, since I would like to check the impact of each predictor (and the combination of both predictor variables) on the independent variable ...
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Why do the car::Anova(test="LRT", type=3) and anova(test="LRT") slightly differ in the output (details inside) [duplicate]
Let's say we have this data:
...
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Where are the Wald p-values and where are the LRT ones in the resulf of mixed models? [closed]
I read, that there are many methods of determining the degrees of freedom, thus calculating the p-values for fixed effects in mixed models. I read, that the worst is the Wald test and the Log-...
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