I'm looking at page 499 in the Blue Book.
There are 67 questions on the 3 Critical Reading sections.
If you answer 64 questions correctly and leave 3 questions blank, you score 800.
If you answer 64 questions correctly and answer the other 3 questions incorrectly, you score 780.
That is a big penalty.
I follow the logic of the penalty for wrong answers. It's a correction for guessing.
But the 1/4 point deduction over-corrects because in reality students don't make random guesses. In reality, they systematically guess the wrong answer. At least, that's what I see with C.
I'm telling C. not to make any guesses at all.
I'll let you know how that goes.