# Trial feedback based on 2 responses

What are you trying to achieve?:
In my task participants must make a left\right distinction based on the location of a stimuli followed by an additional key press.
E.g. if the picture is on the left, press ‘c’ followed by ‘spacebar’
if the picture is on the right, press ‘m’ followed by ‘spacebar’

I want to provide feedback in the practice trials to ensure participants are pressing both keys.
I can provide trial feedback using a conditions file when 1 response is required, but this does not seem to work when 2 responses need to be made in order to be deemed correct.

What did you try to make it work?:
I have tried the following:

• Inputting ‘c’ and ‘space’ in the ‘corAns’ column in my conditions file
• Using 2 ‘corrAns’ colums in my conditions file and then inputting $corrAns1,$corrAns2 in the correct answer section of the response properties.

What specifically went wrong when you tried that?:

• For the first solution this just repeatedly showed my incorrect response message
• For the second solution the programme wouldn’t run

I’d really appreciate any suggestions as this is the final element of my task that I need to programme in order to pilot it