Two separate keyboard responses on the same stimulus
Hello and good luck with all of your projects. I am trying to create an arithmetic verification task, in which participants would report both their answer to the presented equation (whether the result they see is correct or false, via a keyboard response) and how sure they are of their answer (a second keyboard response). I have tried to put two keyboard responses referring to the same stimulus. The problem I am facing with that is that when I put two keyboard responses, the accuracy of the participant in the data is determined from the second response (how sure they are) and not from the first (the answer), as it should. Since there is no correct answer on how sure people are, I am looking for a way to add a second keyboard response, with Opensesame just logging the second answer (the letter participants press) and this not affecting the accuracy on the trial, which would be determined by their first keyboard response (if the result on the equation is true or false). Any thoughts on how I could achieve that?
I understand this might be very confusing, so I can provide further explanation should you need any. Thanks in advance!