A number of years ago, I wrote that pre-testing learners was user abusive (with a caveat). My argument was sensible, qualified, but apparently wrong. Now that I’ve more of the story, it’s time to rectify my mistake. Of course, there are still remaining questions ;).
My claim was that while pre-testing might have some small benefit, forcing users to test on things they don’t know isn’t nice. Moreover, I attributed that benefit to activating relevant material, and suggested that there were more humane ways to do it. However, if the pre-test could show that learners did know it, and so be able to skip it, it’d be worthwhile.
However, research has now shown more benefits to pre-testing. That is, causing learners to search for information they don’t have somehow makes the memory traces more susceptible to successful learning subsequently. Without a full neurological explanation, it appears that the activation goes deeper than just associative awakening. It also appears to be for more than just memory, but actual performance.
This, then, argues that pre-testing is a good thing. Now, I haven’t been able to find a comparison where this pre-testing was compared to a compelling story or question that didn’t require an actual response. Still, I’m willing to believe that the actual requirement for search in a test is more powerful than mere related stories.
And this also makes the case stronger, in my mind, for problem-based learning. That is, if you’re faced with a problem you don’t know the answer to (and it’s a comprehensive question representing the overall learning goal), both the need to look for the answer and (ideally) a compelling story in which it’s important make a good case for the learning to be more effective.
Which doesn’t mean I don’t still feel it’s abusive, but it’s in a good cause. And it still could be that the learner doesn’t actually have to take a ‘test’, but instead in some less formal way is asked to retrieve the answer. And it might not.
Regardless, I feel obligated to change my opinion when data contravenes, even in part, a story I previously believed. And it doesn’t even hurt much ;). Here’s to good design!