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Many college classes have huge curves as well (and college students only need to retain information for a quarter or a semester, not a year).
And do you know how the score cutoffs are determined? College students are pretested on AP questions and information about their performance is used to make score cutoffs that reflect grades in actual college courses.
[Advanced</a> Placement exams - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Advanced_Placement_exams]Advanced”>Advanced Placement exams - Wikipedia)
<a href=“College Board - SAT, AP, College Search and Admission Tools”>College Board - SAT, AP, College Search and Admission Tools; (see pages 15-16 (note that the PDF pages are numbered different from the actual pages. Look for the blue page numbers on the bottom)
[url=<a href=“Classroom Resources - National Council of Teachers of Mathematics”>Classroom Resources - National Council of Teachers of Mathematics]Math</a> Forum Discussions - RE: [ap-calculus] the cut off scores for 5’s’ 4’s and etc<a href=“from%20someone%20who%20was%20involved%20in%20the%20grading”>/url</a></p>