I am trying to use two keys in the Response Box (leftmost & rightmost) as an input. Having no experience with this device yet, how do I make an input file to capture the key inputs (left for 'yes', and right for 'no')?

I also want to score the responses based on a list of 'correct answers' written in the input file. Please send me a sample of input file.

My study is related to lexical decision.