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Demetri Pananos
  • Member for 6 years, 3 months
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53 votes

When to remove insignificant variables?

52 votes

What are the worst (commonly adopted) ideas/principles in statistics?

32 votes

What percentage of a population needs a test in order to estimate prevalence of a disease? Say, COVID-19

32 votes

How can I determine which of two sequences of coin flips is real and which is fake?

30 votes
Accepted

Why do we care more about test error than expected test error in Machine Learning?

28 votes
Accepted

In regression, why not use regularization by default?

26 votes
Accepted

Significance test for two groups with dichotomous variable

22 votes

What if my linear regression data contains several co-mingled linear relationships?

22 votes
Accepted

Can an irrelevant variable be significant in a regression model?

21 votes
Accepted

How to choose "family" in Generalized Additive Model (GAM)

19 votes

What are the worst (commonly adopted) ideas/principles in statistics?

19 votes

Why does Machine Learning need a lot of data while one can do statistical inference with a small set of data?

17 votes

Are linear regression and least squares regression necessarily the same thing?

17 votes
Accepted

What are the best ways to generate Bayesian prior estimates using beliefs of non-statisticians?

16 votes
Accepted

Why do parameters go untested in Machine Learning?

16 votes

Why do we never learn cross validation in regular statistical textbooks?

16 votes
Accepted

Statsmodels Logistic Regression: Adding Intercept?

16 votes

Why do you take the sqrt of 1/n for RMSE?

15 votes
Accepted

Unable to get correct coefficients for logistic regression in simulated dataset

15 votes
Accepted

Dichotomizing continuous variables at their optimal cut-off for clinical interpretation

15 votes
Accepted

What can be done about assumption violations in logistic regression?

14 votes
Accepted

What exactly is model instability due to multicollinearity?

14 votes
Accepted

Do test scores really follow a normal distribution?

14 votes

How to learn statistics for medical research?

12 votes

Isn't it futile to try to fix multicollinearity?

12 votes
Accepted

Feature selection for Logistic Regression

12 votes

Ideal Use Cases for Splines

11 votes

Circular reasoning in Harrell BBR 18-19?

11 votes

Analysed non-linear data with GAM regression, but reviewer has suggested fitting exponential or logarithmic curves instead. Which to use?

11 votes

Welch test seems to perform much worse than equal variance t-test

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