Multiple Values for Test Questions - is it possible?

The method above, I believe, would be best when you want add the points as soon as they select an option. However, if the student changes his/her mind, the scoring will have already taken place, I believe. This means either they couldn't change their mind, or if they do, the point values for each "guess" will be calculated. So instead, you can run the actions after submitting the question. It does take a little more time to set up this way. 

Attach a series of actions to the Submit button or whatever you are using to grade the question (possibly the next button). In newer versions of Lectora, you could use an action group, but I don't believe that's an option in 2006. You'll have one action for each option in the test:

Action tab: On click, add x points to x variable (their score)

Condition tab: if X question (the question variable) equals xx (the specific option)

You'll have to make sure that the "equals" value is an exact match to the question. For example, if they pick the option that says All of the above., then that's exactly how it must appear in the action. The spelling must be the same, the period must be there, etc. And if you go back and make an edit to the question options, you'll need to update it in the action.

In the end, for a four-option question, you'll have four different actions, each with a different point value, the same question variable, and a different "equals" value.