Sparknotes scores accurate??

<p>Well i scored 800 for writing 800 for math and 640 for critical reading. I didnt get full marks for writing but somehow i got 800. Is it a glitch or something?? Can anyone clarify this? And is the difficulty level equivalent to the SAT?</p>

<p>I used sparknotes for prep for SAT subject test Biology E and the highest I got was a 650 and I got 780 on the actual thing so I would say they are at least really good for prep.</p>