Tests are a great way to add interactivity to a Lectora course. The test itself is a special chapter that contains the functionality to grade, share results, guide the learner, and more.
View the training plan here: http://community.trivantis.com/knowledge-base/lectora-training-plan/
To see the previous video in the series go here: http://community.trivantis.com/knowledge-base/16-variables/
To see the next video in the series go here: http://community.trivantis.com/knowledge-base/18-work-modes/