The answer is C, “Probably.” If I said the answer was A, “Always,” you could probably find the exception where quizzes would not make sense in an online training experience. But if your purpose for creating a training course includes one or more of the following—to motivate the learner, make learning engaging, assess knowledge, drive behavioral change, close training gaps, gain visibility into performance, or measure ROI—you should probably include quizzes in your online training. Lights of the MindIn the article How Tests Make Us Smarter, Dr. Henry Roediger writes: “Tests have a bad reputation in education circles these days: They take time, the critics say, put students under pressure and, in the case of standardized testing, crowd out other educational priorities. But the truth is that, used properly, testing as part of an educational routine provides an important tool not just to measure learning, but to promote it.”