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IlyaShpitser comments on Should you write longer comments? (Statistical analysis of the relationship between comment length and ratings) - Less Wrong Discussion

11 Post author: cleonid 20 July 2015 02:09PM

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Comment author: IlyaShpitser 20 July 2015 07:20:00PM *  4 points [-]

You cannot use observed dependences in the data to suggest decision changes because p(y | x) is not in general equal to p(y | do(x)).

Comment author: Andy_McKenzie 20 July 2015 07:41:39PM 2 points [-]

What should cleonid do instead (if anything)? And even if something is not true in general, could it still be used as an approximation?

Comment author: IlyaShpitser 20 July 2015 08:28:40PM 4 points [-]

Run a trial, or barring that, correct for obvious confounders that affect both post length and post quality (I am sure we can both think of a few right now).

Comment author: ChristianKl 20 July 2015 08:42:49PM 0 points [-]

Run a trial, or barring that, correct for obvious confounders that affect both post length and post quality (I am sure we can both think of a few right now).

Why not be more specific about what confounders should be included or how a trial should look like?

Comment author: IlyaShpitser 20 July 2015 09:09:12PM 0 points [-]

Are you going to pay me to seriously look into this?

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