I have an experiment in which two numbers are presented simultaneously, one on the left of the screen, and one on the right. Subjects are required to indicate which is the smaller number by pressing a key that corresponds to the location of the target number. (i.e. if the target number is on the left, press left key. if on the right, press the right key).
How do I get Superlab to compare the 2 numbers, then assess whether the correct key has been pressed?