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Re:The xkcd survey by sounds on Wednesday September 02, 2015 @11:36AM (#10159933)
Here are some obvious signals that I think can be pulled from the data set:

• gender

• age (since they just straight up ask for it)

• rough geo data (if the survey records IP geo information, so assume they are doing that)

• economic status

• rough tech literacy level

Re:The xkcd survey by justinlardinois on Wednesday September 02, 2015 @11:49AM (#10160040)
As far as I know, it's not possible to record respondents' IP addresses with Google Surveys, so I think that one's out. I suppose you could make rough inferences based on the food, weather, and snow questions.
Re:The xkcd survey by fvirexi on Wednesday September 02, 2015 @01:20PM (#10160666)
The keyboard part will help quite a bit, at least. Being from Norway, the occasional æ-ø-ås are quite revealing.
Re:The xkcd survey by jdcarter on Thursday September 03, 2015 @07:37PM (#10168111)
I type on Dvorak, so lots of "oeuieu" (clusters of vowels) in there. Midway through the gibberish I typed "this is a dvorak keyboard" just for grins.