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> These are findings from an Ipsos poll conducted May 24-25, 2017 on behalf of Mozilla. For the survey, a sample of roughly 1,008 adults age 18+ from the contin
by hosh 9y ago
> These are findings from an Ipsos poll conducted May 24-25, 2017 on behalf of Mozilla. For the survey, a sample of roughly 1,008 adults age 18+ from the continental U.S., Alaska and Hawaii was interviewed online in English.
I wonder if the online polling affects the kind of people who are selected for the sample.
Would it make a difference if the people involved own their own computers, have their own broadband, or has to go to the library to access the internet?
What about people who don't use the internet?
Does age group or other socioeconomic factors matter in this? What about people who accesses the internet primarily from a mobile device?
- pmyteh 9y agoIt matters. Anything except a truly random sample of the population (essentially impossible) invalidates the statistical guarantees of polling. Consequently, polling involves a large number of processes to both get the most representative sample possible, then adjusts the results to reflect the biases they are aware of. This is something of an artistic process, and is one reason why pollsters have house effects/biases: they each do things slightly differently. Having said that, the general feeling is that online polls are as reliable as offline polls nowadays after these adjustments have been made, partly because polling by telephone has a well-established set of biases associated with it too.