welcome to Moodle and the HotPot module
Sounds like you want a more traditional "test" kind of quiz, so I suggest you use Moodle's standard "quiz" module, which is designed to be static and secure and give a straightforward result of how many questions were answered correctly.
The HP quizzes are more engaging and absorbing than static Moodle quizzes, but they are not secure and the scoring can be confusing. HP quizzes allow students to experiment with language until they find a suitable answer.
In my case, I use the "quiz" module for tests and I use the "hotpot" module for homework and in-class activities
. I don't use the HotPot scores so much - but don't tell my students
. More useful to me are the HotPot reports which tell me how many attempts students took to get the right answers and what the common mistakes were.
In Moodle 1.5 (the current "stable" of Moodle) the HotPot results are returned once the HotPot quiz in "completed", and a HP quiz is judged to be complete when ALL the questions have been answered correctly.
in Moodle 1.6 (the "latest" development release of Moodle) the HotPot results are returned everytime the student clicks a button on the quiz, so the results are returned even if the student does not "complete" the quiz.
If you already have made some questions for your "formative assessment" quiz using HP, you can
import them into Moodle's quiz module from the page where you set up
questions for quiz.
Finally, don't be afriad to start a new thread on the HotPot forum. For others who may have the same question as you, it is easier to find the answer if the question has its own thread with a clear title and is not buried at the bottom of a thread about a different point
hope that helps!