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Here are the numbers of A, B, C, D, and F grades students have earned in my classes for each year I've been teaching in the Computer Science Department.
Year A B C D F --------------------------------------- 2002-2003 100 53 17 6 10 2003-2004 35 86 23 6 5 2004-2005 28 38 8 7 3 2005-2006 31 44 39 25 15 2006-2007 52 41 26 22 24 2007-2008 50 67 21 5 6 2008-2009 56 59 34 13 2 2009-2010 78 70 31 8 1 2011-2012 57 43 22 3 1 Overall 487 501 221 95 67
Here is the same data expressed as percentages. I do not use norm-referenced grading (the "bell curve"). I use criterion-referenced grading; every student who meets the criterion for an A earns an A, even if that happens to be everyone in the class -- or no one. Overall, 73% of my students have earned an A or a B.
Year A B C D F --------------------------------------- 2002-2003 54% 28% 9% 3% 5% 2003-2004 23% 55% 15% 4% 3% 2004-2005 33% 45% 10% 8% 4% 2005-2006 20% 29% 25% 16% 10% 2006-2007 32% 25% 16% 13% 15% 2007-2008 34% 45% 14% 3% 4% 2008-2009 34% 36% 21% 8% 1% 2009-2010 41% 37% 16% 4% 1% 2011-2012 45% 34% 17% 2% 1% Overall 36% 37% 16% 7% 5%
Here is a plot of the percentage data.
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