Dear SuperLab people,
I would like my participants to respond bimanually, either with both middle fingers or index ones. I would like to involve both hands at the same time.
I want to use 4 keys: e.g ‘x’ and ‘n’ together as yes, and ‘z’ and ‘m’ as no.
How to do it to be able to see it in the data?
… both keys pressed ( left and right hand) coded and the reaction times (for using left and right button- probably there will be small differences between them, like 10ms).