Request

[Dr. Rainer Schneider]

Hi everybody,

The question I have may appear rather mundane. I am looking for a (not 
to difficult) reaction-response paradigm task employed as baseline and 
post-treatment tasks. The tasks is used to see whether caffeine has any 
effects on reaction time. I am looking for a neat (not necessarily 
linguistic) task which would take about 15 min to complete. Although I 
could use the same tasks at both measurements, I would prefer 
split-halves standardized for difficulty. Alternatively, I was thinking 
of arithmetical tasks (say addition and substraction) where odd numbered 
results would have to be responded to with another key than even mumbered.

Does anyone have knowledge of such a tasks or has even developed one to 
share?

I am employing E-prime for the first time and have not much experience 
with it.

Kind regards,

Rainer