I'm an "N" behind you. Just started a few days ago and didn't have much trouble
with 2-back, and am juuuuust starting to not bomb 3-back every time.
How long did 3-back take you to get it?
DnB is probably easier, if you can do QnB at all! =) I've just started... baby
steps.
Could just post your stats.txt file; I don't think there's any nice
tool for generating a jpg of charts or anything.
--
gwern
Or a simple screenshot of the graph.
I realize you're being humorous, but that's pretty unlikely. Did you
check out the charts in that lure paper you just posted? I remember
one of the pairs of people with almost identical near-perfect Gf
scores also differed in their lure accuracy/n-backing by like 50%!
(Assuming I'm interpreting Fig 2b right.) And this was on a fixed S3B
task.
--
gwern
Obvious answer: multiple self-selection effects. Lower IQ people
aren't as interested, wouldn't take the test, would likely not
persevere in N-backing because it's harder at lower levels, the tests
may be biased upwards, low scorers would be embarassed to post them,
etc etc etc.
If it makes you feel better, my score on the iqtest.dk (back when I
had just reached D2B) was 115.
--
gwern