Data collection is going well. There's no longer a need for 50-59 year olds, as you can see from the figure below:
Now, the slow wait for those 60 and up begins. We are getting about seven a day, assuming the rate between the 21st and today remains constant, so I expect this step should take a little over a week.
Meanwhile, I also ought to be considering those indicating they cheated on the test. We have 23 self-identified cheaters out of 480 subjects, which is roughly a rate of one in 20 -- not great. I'll have to decide whether to re-run an equivalent number of subjects or just leave it be (likely, I'll just leave it be).