Just because you can do something doesn’t mean you should.

~ Shane Parrish from, https://fs.blog/2013/02/gaming-the-system/

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A long time ago, a social studies teacher had been giving the same multiple-choice, high school, final exam, every year, for [as I recall the story] decades. The catch was two-fold: First, each year he cut the exam into strips separating each question. Yes, by hand, with scissors. He then shuffled the strips, scotch taped them onto a new sheet which *did* have sequential numbers on it already, and then ran it through the mimeograph machine. There was no way to create a “cheat sheet” for this exam based on previous years (even if we could have gotten a previous test.) Second, the test was insanely long; hundreds and hundreds of questions long. In fact, it was—intentionally—*impossibly* long.

When he graded the exams, he noted the total number of questions each student *attempted*. To be clear: He’d note the number of the last question you answered. So if one skipped around, you’re doomed since you definitely get wrong, the ones you didn’t even try to answer. So the incentive is to start at the beginning and just work straight through; recall, they’re totally shuffled. He then computed the average number attempted, and that average was used as the total *possible points on the test*. If you scored above the possible points (unlikely, but possible,) the points got added to your semester’s total points. (So if you score +2 on the final, the first extra point, brought up your 9/10 quiz score to 10/10. That second extra point brought a homework up from 5/7 to 6/7.)

Have you spotted how you game this system?

Bonus question: I regret what we did, (there were 3 of us.) But, can you tell me why I regret it?

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