For all students taking AP tests: starting in May 2011 (this school year), all tests will no longer have a guessing penalty. According to the College Board, "Total scores on the multiple-choice section will be based on the number of questions answered correctly. Points will no longer be deducted for incorrect answers and, as always, no points will be awarded for unanswered questions." To read the entire statement or view revised grading curves for past released exams, click here.
The reasoning behind this change and possible effects are still unknown. Yet this change poses several questions. Do the new changes in AP scoring actually disadvantage certain groups at the expense of others? Also, should blind guessing be allowed on exams that measure content mastery (as opposed to skill mastery)?