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gwern comments on Analyzing FF.net reviews of 'Harry Potter and the Methods of Rationality' - Less Wrong Discussion

25 Post author: gwern 03 November 2012 11:47PM

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Comment author: gwern 06 November 2012 12:31:49AM *  2 points [-]

That's an interesting angle. I think we actually could measure conversions to some extent.

The survey asks after MoR, and also how long a user has been around, so one could filter for any survey set mentioning MoR and subtract their longevity from the date to figure out what was their 'latest' chapter before joining LW.

A second way which would probably work better is to leverage the usernames in the review data set and compare to a list of LessWrong users & account registration date, to do much the same thing: take every username which appears on both lists, and the LW account registration date, and credit them to the chapter appearing just before their LW account registration. (If their LW account precedes their first MoR review, it'd probably be best to eliminate them from consideration.)

Comment author: Luke_A_Somers 07 November 2012 02:10:04AM 0 points [-]

Also, I'd check for their mentioning MoR in introduction posts. If I hadn't taken the survey, that's how you'd pick me up, for instance.