Cognitive reflection can be measured with a simple test of just three questions, and you can get a flavour of what it involves by considering the following example: A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost? _____ cents In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake? _____ days If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100
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