incorrect avg_rt
Hi,
I have a simple reaction time task, in which participants have to react to a stimulus with a keypress.
The loop consists of 20 trials. Each trial consists of:
-fixation (which varies from trial to trial and does not have the same fixed duration for all trials)
-stimulus
-keyborard
-logger.
So I have 20 keyboards and 20 loggers (which I copied linked). At the end of the block I do not get the average of the response times of the subject to the stimulus, but an enormous sum of times (es. 31268 msec).
Thanks to those who will help me!
Comments
Hi @neuropsy,
It is not possible to pinpoint the origin of the problem from your description alone. Are you using code to calculate performance averages?
My recommendation is to include code in your task at different times to output to the console the state of the key variables. This will help you track their changing values as the task runs, which will enable you to determine where things go wrong. Once you have done that, you should then get a better idea of the possible source of the problem.
Best,
Fabrice.