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Ben Bolker's user avatar
Ben Bolker's user avatar
Ben Bolker's user avatar
Ben Bolker
  • Member for 13 years, 6 months
  • Last seen this week
85 votes
Accepted

How to obtain the p-value (check significance) of an effect in a lme4 mixed model?

73 votes

What is the difference between fixed effect, random effect in mixed effect models?

63 votes
Accepted

How trustworthy are the confidence intervals for lmer objects through effects package?

62 votes

How to model non-negative zero-inflated continuous data?

52 votes
Accepted

Understanding the parameters inside the Negative Binomial Distribution

45 votes
Accepted

Mixed Effects Model with Nesting

45 votes
Accepted

How to use ordinal logistic regression with random effects?

42 votes

What are common statistical sins?

41 votes

Why is there a difference between manually calculating a logistic regression 95% confidence interval, and using the confint() function in R?

41 votes
Accepted

Why do I get zero variance of a random effect in my mixed model, despite some variation in the data?

39 votes
Accepted

For which distributions are the parameterizations in BUGS and R different?

36 votes
Accepted

Fitting a binomial GLMM (glmer) to a response variable that is a proportion or fraction

36 votes
Accepted

Interpretation of non-significant results as "trends"

35 votes

Best way to deal with heteroscedasticity?

35 votes
Accepted

REML or ML to compare two mixed effects models with differing fixed effects, but with the same random effect?

31 votes
Accepted

Conflicting results of Type III sum of squares in ANOVA in SAS and R

31 votes
Accepted

Performing a statistical test after visualizing data - data dredging?

31 votes
Accepted

Why would they pick a gamma distribution here?

31 votes
Accepted

lme() and lmer() giving conflicting results

30 votes
Accepted

What if interaction wipes out my direct effects in regression?

28 votes
Accepted

Have I correctly specified my model in lmer?

28 votes

Getting P value with mixed effect with lme4 package

27 votes
Accepted

Identical coefficients estimated in Poisson vs Quasi-Poisson model

27 votes
Accepted

Why is the Tukey's IQR not used in the R program?

26 votes

Variance-covariance structure for random-effects in lme4

26 votes
Accepted

Minimum number of observations for multiple linear regression

25 votes

Using ANOVA on percentages?

25 votes

Why does R's lm() return different coefficient estimates than my textbook?

24 votes

What's the interpretation of ranef, fixef, and coef in mixed effects model using lmer?

24 votes

Does including gender as a predictor variable mean I should use a glm function, not an lm function, in R?

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