Assign radio button values

I'm building a form with many radio buttons.  The form is based upon a Likert Scale (from Strongly Agree to Strongly Disagree).  I would like to assign numeric values to each radio button.  In many cases the values will be 1, 2, 3, 4, and 5.  However, in some cases the statements are reverse scored as 5, 4, 3, 2, and 1.  Also, the test has 10 scales ranging from "My Good Score" to "My Bad Score."  I have mapped out where each group of 5 radio buttons fit (what scale).  Each scale will be summed, resulting in 10 different scores on 10 different behaviors.

I've searched the net to determine how to do this, since I've previously created a more straight forward test using checkboxes; however, the properties of checkboxes provide an export value, whereas radio buttons do not.  So, I'm lost.

I've read about grouping radio buttons so that only one can be selected.  Got that.  I've even read "export the value of the radio button"  which does not exist.  Most recently I've read about scripting.  Enter Javascript!  I know nothing about it.

Please help.