Causal Analysis in Theory and Practice

July 14, 2014

On Simpson’s Paradox. Again?

Filed under: Discussion,General,Simpson's Paradox — eb @ 9:10 pm

Simpson’s paradox must have an unbounded longevity, partly because traditional statisticians, so it seems, are still refusing to accept the fact that the paradox is causal, not statistical (link to R-414).

This was demonstrated recently in an April discussion on Gelman’s blog where the paradox was portrayed again as one of those typical cases where conditional associations are different from marginal associations. Strangely, only one or two discussants dared call: “Wait a minute! This is not what the paradox is about!” — to little avail.

To watch the discussion more closely, click .


  1. I would have liked it better had you disputed Gelman’s claim about Red State Blue state more directly. To me this seems to be a clear-cut case of a “puzzle” caused by incorrect causal inference. In what sense does Gelman think it is non-causal?

    That is important because it was the only concrete instance proposed for the alleged class of non-causal Simpson’s Paradoxes.

    Comment by Phil Koop — August 1, 2014 @ 1:29 pm

  2. […] dont miss previous postings on our blog, for example: 1. On Simpson’s Paradox. Again? 2. Who Needs Causal Mediation? 3. On model-based vs. ad-hoc […]

    Pingback by Causal Analysis in Theory and Practice » Mid-Summer Greetings from UCLA Causality Blog — August 1, 2014 @ 3:43 pm

  3. Do you mind if I quote a couple of your articles as long as I provide credit and sources back to your website? My blog site is in the exact same area of interest as yours and my users would genuinely benefit from some of the information you provide here. Please let me know if this okay with you. Regards!
    michael kors jet set wristlet brown

    Comment by michael kors jet set wristlet brown — December 18, 2014 @ 1:41 pm

  4. lustra na wymiar piotrków

    See this lustra na wymiar for yourself.Glass furniture,building and much more in Piotrków Trybunalski

    Trackback by lustra — May 7, 2015 @ 7:27 am

RSS feed for comments on this post. TrackBack URI

Leave a comment

Powered by WordPress