Moodle has had certainty based marking for at least 15 years. https://docs.moodle.org/502/en/Using_certainty-based_marking https://docs.moodle.org/502/en/Using

Moodle has had certainty based marking for at least 15 years. https://docs.moodle.org/502/en/Using_certainty-based_marking https://docs.moodle.org/502/en/Using_certainty-based_marking