The final straw was noticing a comment referring to "the most recent survey I know of" and realizing it was from May 2009. I think it is well past time for another survey, so here is one now.
I've tried to keep the structure of the last survey intact so it will be easy to compare results and see changes over time, but there were a few problems with the last survey that required changes, and a few questions from the last survey that just didn't apply as much anymore (how many people have strong feelings on Three Worlds Collide these days?)
Please try to give serious answers that are easy to process by computer (see the introduction). And please let me know as soon as possible if there are any security problems (people other than me who can access the data) or any absolutely awful questions.
I will probably run the survey for about a month unless new people stop responding well before that. Like the last survey, I'll try to calculate some results myself and release the raw data (minus the people who want to keep theirs private) for anyone else who wants to examine it.
Like the last survey, if you take it and post that you took it here, I will upvote you, and I hope other people will upvote you too.
I tried the second one after reading this and had similar results: 118 on the first one (implausibly low); 137 (stdev16) on the second one (sounds about right).
Though if I was taking this more seriously I'd probably have to weigh the facts that my kids were being more distracting when I took the first one, and I ate flaxseed shortly before taking the second one.
I took the first one under reasonably good conditions, and the second under about the same conditions a little while afterwards.
The first one seemed like a test of endurance as much as anything-- it was as though my ability to focus was running out on the last ten questions or so, and possibly as though it would have been somewhat easier if I'd been in better physical condition.
General question about that sort of puzzle-- how much can effort help with them? Can they be solved reliably given more time (and probably a chance to write down theories and guesses), or does inspiration have to strike fairly quickly?