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Many multiple choice questions are poorly written. What better way to expose these errors than write a cheat-sheet for learners?
Of course, writing good test items is far more difficult than many imagine. Many make obvious mistakes. An interesting way to coming at this problem is to do some reverse engineering. If you think this doesn’t work, think again. Poundstone number crunched 100 tests with a total of 2456 questions to get some of these statistical biases.
