user1205901 - Слава Україні's user avatar
user1205901 - Слава Україні's user avatar
user1205901 - Слава Україні's user avatar
user1205901 - Слава Україні
  • Member for 12 years, 2 months
  • Last seen this week
65 votes
8 answers
57k views

How can a distribution have infinite mean and variance?

39 votes
3 answers
2k views

When is it appropriate to use an improper scoring rule?

32 votes
2 answers
7k views

Are 50% confidence intervals more robustly estimated than 95% confidence intervals?

28 votes
5 answers
49k views

Why do we say the outcome variable "is regressed on" the predictor(s)?

28 votes
5 answers
3k views

Why do these statements not follow logically from a 95% CI for the mean?

27 votes
2 answers
14k views

Why is the normality of residuals "barely important at all" for the purpose of estimating the regression line?

25 votes
2 answers
120k views

Can a statistical test return a p-value of zero?

23 votes
3 answers
46k views

Why does the t-distribution become more normal as sample size increases?

22 votes
2 answers
19k views

What are Bayesian p-values?

22 votes
5 answers
181k views

What is the difference between descriptive and inferential statistics?

19 votes
3 answers
53k views

When doing a t-test for the significance of a regression coefficient, why is the number of degrees of freedom $n-p-1$?

18 votes
2 answers
3k views

How to choose between the different Adjusted $R^2$ formulas?

18 votes
3 answers
49k views

Why use a certain measure of forecast error (e.g. MAD) as opposed to another (e.g. MSE)?

18 votes
4 answers
2k views

Is variance a more fundamental concept than standard deviation?

17 votes
2 answers
2k views

Why is Pearson's ρ only an exhaustive measure of association if the joint distribution is multivariate normal?

16 votes
1 answer
3k views

What does it mean to explain variance?

16 votes
1 answer
7k views

What's the difference between asymptotic unbiasedness and consistency?

15 votes
2 answers
869 views

ICC as expected correlation between two randomly drawn units that are in the same group

15 votes
1 answer
27k views

What's the difference between regression coefficients and partial regression coefficients?

14 votes
2 answers
5k views

Is multilevel modelling simpler, more practical, or more convenient using Bayesian methods or frequentist methods?

14 votes
2 answers
816 views

What is the Frequentist definition of fixed effects?

13 votes
1 answer
14k views

Why do we divide by $n-1$ when calculating sample correlation?

13 votes
3 answers
13k views

Is every correlation matrix positive definite?

13 votes
4 answers
691 views

How can I best deal with the effects of markers with differing levels of generosity in grading student papers?

12 votes
1 answer
2k views

Is it a mistaken idea to use standardized coefficients to assess the relative importance of regression predictors?

12 votes
4 answers
9k views

Why is it not OK to do a Pearson correlation on proportion data?

12 votes
2 answers
1k views

When (if ever) is it a good idea to do a post hoc power analysis?

12 votes
2 answers
3k views

Regression: why test normality of overall residuals, instead of residuals conditional on $\hat{y}$?

12 votes
3 answers
920 views

What does it mean for something to have good frequentist properties?

11 votes
3 answers
3k views

Intuition behind the formula for the variance of a sum of two variables

1
2 3 4 5
9