Response Box vs Target Box HELP! :)

I assume that this is in a code component in the same routine as respBox. You could just set the opacity to 0 in the component. However, the key error here is that the code component should be above respBox.

Also, you seem to have continueRoutine = False in Begin Experiment, which doesn’t make sense. You could set the Routine Settins to skip if “not needBox”.