[ExI] 41% of people are insane

[MB]

>
> I believe that Pew works with panels of people that volunteer to
> answer surveys for them and they provide Pew with details of their
> lifestyle, so that Pew can make a balanced selection for each poll.
> The survey is done by phone, so there is no peer pressure to saying
> yes, no, maybe, to each question asked. If there was anyone else in
> the room, they wouldn't hear the questions. It is also unlikely that
> people would volunteer to do surveys in the first place if they
> intended to lie. Why bother?
>

Anyone can refuse a survey, but for Pew to have a pre-selected, self-selected group
they ask seems highly un-random, thus potentially unrepresentative.

Regards,
MB