Blog · corpus.blog/blogs/statmodeling.stat.columbia.edu/posts
Andrew Gelman
statmodeling.stat.columbia.edu
2015
21 Dec 2015
21 Dec 2015
“Once I was told to try every possible specification of a dependent variable (count, proportion, binary indicator, you name it) in a regression until I find a significant relationship. That is it, no justification for choosing one specification over another besides finding significance. . . . In another occasion I was asked to re-write a theory section of a paper to reflect an incidental finding from our analysis, so that it shows up as if we were asking a question about the incidental finding aoriginal ↗
21 Dec 2015
20 Dec 2015
19 Dec 2015
18 Dec 2015
17 Dec 2015
Gathering of philosophers and physicists unaware of modern reconciliation of Bayes and Popperoriginal ↗
17 Dec 2015
16 Dec 2015
15 Dec 2015
15 Dec 2015
14 Dec 2015
13 Dec 2015
11 Dec 2015
8 Dec 2015
Hierarchical modeling when you have only 2 groups: I still think it’s a good idea, you just need an informative prior on the group-level variationoriginal ↗
8 Dec 2015
8 Dec 2015
7 Dec 2015
7 Dec 2015
Judea Pearl and I briefly discuss extrapolation, causal inference, and hierarchical modelingoriginal ↗
5 Dec 2015
5 Dec 2015
2 Dec 2015
1 Dec 2015
30 Nov 2015
25 Nov 2015
Gary McClelland agrees with me that dichotomizing continuous variables is a bad idea. He also thinks my suggestion of dividing a variable into 3 parts is also a mistake.original ↗
25 Nov 2015
21 Nov 2015
4 California faculty positions in Design-Based Statistical Inference in the Social Sciencesoriginal ↗
21 Nov 2015
20 Nov 2015
19 Nov 2015
First, second, and third order bias corrections (also, my ugly R code for the mortality-rate graphs!)original ↗
18 Nov 2015
17 Nov 2015
14 Nov 2015
13 Nov 2015
12 Nov 2015
10 Nov 2015
9 Nov 2015
You won’t believe these stunning transformations: How to parameterize hyperpriors in hierarchical models?original ↗
8 Nov 2015
3 new priors you can’t do without, for coefficients and variance parameters in multilevel regressionoriginal ↗
8 Nov 2015
What happened to mortality among 45-54-year-old white non-Hispanics? It declined from 1989 to 1999, increased from 1999 to 2005, and held steady after that.original ↗
7 Nov 2015
Correcting statistical biases in “Rising morbidity and mortality in midlife among white non-Hispanic Americans in the 21st century”: We need to adjust for the increase in average age of people in the 45-54 categoryoriginal ↗
6 Nov 2015
6 Nov 2015
4 Nov 2015
3 Nov 2015
2 Nov 2015
2 Nov 2015
Hi-tech hoops: Characterizing the spatial structure of defensive skill in professional basketballoriginal ↗
28 Oct 2015
27 Oct 2015
26 Oct 2015
25 Oct 2015
Meet the 1 doctor in America who has no opinion on whether cigarette smoking contributes to lung cancer in human beings.original ↗
24 Oct 2015
23 Oct 2015
3 postdoc opportunities you can’t miss—here in our group at Columbia! Apply NOW, don’t miss out!original ↗
22 Oct 2015
22 Oct 2015