1.60% in America, 1.06% in the LessWrong survey population. There are at least 2 ''out'' LW contributors with schizotypal personality disorder. I don't know how many LWers there are in order to contrast this with the 3.9percent US prevalence.
There is frequent comment on the high prevalence of autism in our community. But there is less report of the opposite trend: It appears that LWers have quite a bit lower schizotypy than the general populations.
I would be interested in teasing this out more. I'd encourage deeper questioning on schizotypy. I'm not a psychiatric researcher or clinician so I would encourage someone else with greater experience to chime in on the next steps.
My intuitions are that questions about personality disorders such as schizotypal, avoidant and paranoid personality disorders, as well as various classes of anxiety disorder such as generalised anxiety disorder would be a good idea to look at claims that we're a rather worried, AI-paranoid, ill thinking bunch in context!
Given that it's been a while since the last survey (http://lesswrong.com/lw/lhg/2014_survey_results/)
It's now time to open the floor to suggestions of improvements to the last survey. If you have a question you think should be on the survey (perhaps with reasons why, predictions as to the result, or other useful commentary about a survey question)
Alternatively questions that should not be included in the next survey, with similar reasons as to why...
survey is now up (2016-03-26) http://lesswrong.com/lw/nfk/lesswrong_2016_survey/