Score Keeping?

Hi Everyone!

I have a site where I'd like to be able to allow users to keep score as they move through a series of posts that have multiple choice and true/false questions. For each question there is one post with the question and then a reveal answer button that takes them to a second post with the answer. Does anyone know of a plugin or widget that would allow me to keep track of the users score as he or she moves through the game? This could be as simple as a sidebar widget where they say 'yes, I got the answer write' or something more complex where the questions are listed and they pick one and then it tells them if they got it right or not. Either way, I really need something that will track their score from start to finish. Thoughts