boysfanindc
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abersonc said:I think most of the items have 4 or 5 options -- if you assume an average of 4 options per item, getting 16 right would be a little strange if someone just guessed (a 6% probability)
But if someone were coached to spend the first 10 minutes answering what they could then filling in the rest randomly ..... not that unlikely.
Let's say Vince completed 10 items the first time he took the test and got 6 right (it is very common on timed tests that many answers are left blank). He repeated that performance the 2nd time he took the test. But this time, instead of leaving the rest of the items blank, he filled in an answer for all 40 additional items. Guessing he'd get about 1 in 4 correct -- or ..... 10 more points.
Well if he only guess the correct coverage 1 in 4 times he is going to be in trouble.:laugh2: