Comment author:ctgPi
21 July 2009 07:01:03PM
6 points
[-]
For an exam where what matters is your grade relative to other test-takers, like the SAT, probably yes, but on an exam with a hard pass/fail threshold, the utility function is discontinuous (and therefore non-linear) around the threshold, so guessing might make a difference.
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Presumably, as long as you're not equivocating on 'expected', that isn't true. For tests, 'test score'=='utility', no?
For an exam where what matters is your grade relative to other test-takers, like the SAT, probably yes, but on an exam with a hard pass/fail threshold, the utility function is discontinuous (and therefore non-linear) around the threshold, so guessing might make a difference.