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LeelaSella's user avatar
LeelaSella's user avatar
LeelaSella
  • Member for 12 years, 7 months
  • Last seen more than 2 years ago
  • Hebden Bridge, UK
48 votes
3 answers
7k views

How do DAGs help to reduce bias in causal inference?

20 votes
6 answers
22k views

When to drop a term from a regression model?

17 votes
4 answers
2k views

Classic linear model - model selection

14 votes
2 answers
3k views

Why is it difficult to incorporate uncertainty in random effects when making predictions from mixed models?

14 votes
3 answers
4k views

Illustrative datasets and analysis for multilevel modelling

12 votes
2 answers
487 views

Expected value of spurious correlation

12 votes
1 answer
1k views

Logistic regression model manipulation

12 votes
1 answer
2k views

How to simplify a singular random structure when reported correlations are not near +1/-1

9 votes
3 answers
552 views

Temporal analysis of variation in random effects

7 votes
1 answer
2k views

Proofs of the central limit theorem

6 votes
3 answers
701 views

Justification for use of $\chi^2(1)$ in Wald and score test

6 votes
1 answer
2k views

Understanding the intra-class correlation coefficient

6 votes
1 answer
372 views

Is a singular fit with no correlations near +/- 1 or variances of zero, a false positive in lme4

5 votes
2 answers
6k views

Incidence rate ratios (Stata vs R)

5 votes
1 answer
2k views

Simpson's paradox or confounding?

4 votes
1 answer
6k views

Weibull moment generating function and Gamma function

3 votes
1 answer
286 views

Sampling with inclusion/exclusion criteria from known distribution

3 votes
1 answer
388 views

Model Identification

2 votes
0 answers
74 views

How can I model optimal time at which a treatment becomes effective?

2 votes
2 answers
1k views

Finding a trend in variance

2 votes
2 answers
3k views

Adjusted mortality rates

1 vote
0 answers
208 views

Why does fitting an interaction-only model result in a rank-deficient design matrix?