is sparknotes accurate?

<p>i have just taken the sat 2 biology test, it says i got an 800 on test but again i missed like 10 que, so is it over-predicting my ability? or is it just because of the curve on their test.
mike</p>

<p>i suggest barrons biology sat ii book, its um, fairly exhaustive and you really can't go wrong if you put the effort in reading the book and doing the practice sat tests, and if u dun have time then just take their tests cuz they are more challenging than the real ones, as for sparknotes, it usually is accurate in terms of the material they give to study, but iv never taken a practice test from them so i can't give my perspective on that.</p>