2 ms·
I think his point was that the test saturates at a normal person's level of concentration. So medicating normal people does not improve their score.
by eternauta3k 9y ago
I think his point was that the test saturates at a normal person's level of concentration. So medicating normal people does not improve their score.
- ianai 9y agoFor ceteris paribus you need data on all variables for all observations. The more variety the better, too.