that's what the T.O.V.A shows...

at 10 mg i had 1.83% commission errors
20 mg - 3.19 % commision errors (but no omiision)
25 mg - 6+ % commission errors..

i should point out that's the 2nd time i took it under 25mg, the last time i had 2% commision, but i think the test was wrong becouse i had 12% ommission erros while i distincly remember presssing the button, (i think i pressed while it was drawing)..

What were your baseline numbers?
The dose response curve for ritalin, with regards to attention, is a bell curve - at a middle dose attention is at it's best and at higher doses attention decreases.
I wouldn't read too much into the test scores - there are too many variables for true accuracy (from how well you slept the night before to the type of breakfast you had.....) and continuous performance tests are know to be inaccurate (they are more prone to giving "false negative" results when they are wrong).
I would judge the effectiveness of the dosage by how it improves your real world performance over a longer period of time.

base line results were that i had 4% error commision, which means that only the 10 mg help to reduce it.


problem i have no way of knowing subjectly if it works or not, i have no perspective