Setting duration and a key response
I'm quite new at this and I was wondering if someone ever tried to display a sketchpad for a constant time (say 2500 ms) while collecting key response?
so far I have only done one or the other, meaning either the sketchpad was displayed for 2500 ms or it was displayed until response was made. I want the sketchpad to be displayed for 2500 ms regardless of participant response.. but I want the experiment to collect response time and accuracy for the response....
Any help would be appreciated