Why I regularly test my students even if it’s not popular (and the takeaway for peak learners)

testing students

This may surprise you, but I get criticized for my way of teaching. More precisely, some of my colleagues think I give too many evaluations. I confess I love my quizzes, and I typically assess my students’ progress every week.

But “teachers should spend less time testing and more time teaching” as the Badass Teachers Association often reminds me on Facebook. Similarly, for some of my colleagues, my strategy just reeks of old-school thinking. They say frequent quizzes undermine learners’ sense of responsibility and intrinsic motivation.

But, to me, regular testing has always felt intuitively right, and a few years ago, this intuition was confirmed by the largest evidence-based research about what works best in education. John Hattie’s mega-study Visible Learning is a synthesis of 50,000 studies involving more than 80 million students; there’s a reason why it’s been called the holy grail of education.

Hattie has identified 138 influences on student achievement and ranked them by degree of effectiveness. Here’s his top ten.


As you clearly see, providing formative evaluation ranks third (formative means low or no point value). Let me repeat this: testing has the third most powerful effect on learning among hundreds of investigated variables.

The thing is, formative assessments do two main things.

  1. They measure learning
  2. They strengthen learning

First, progress monitoring provides a great window into where you’re at as well as what works and what doesn’t, which allows both the teacher and the student to adjust accordingly. And the more often they get this feedback, the faster they can course correct.

Second, many recent studies (most likely included in Hattie’s mega-study) have established that taking tests is one of the best ways to reinforce learning, and that it should be done sooner rather than later (even if you haven’t finished learning).

For example, one of the studies shows that giving short quizzes on a regular basis like I do increases performance by about half a letter grade as opposed to relying on four major exams. The most famous research has been done by Roediger, who has listed ten benefits of testing.

This is the takeaway for peak learners. You really have to stop seeing studying and testing as two different things.

Testing / self-testing is learning at its best.

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