Alan Kaminsky • Department of Computer Science • Rochester Institute of Technology • 4572 + 2433 = 7005

Prof. Alan Kaminsky
Rochester Institute of Technology—Department of Computer Science

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
2012-2013    53    91    52    12     4
2013-2014    47    61    46    14    13
2014-2015    47    67    47    19     9
2015-2016    38    79    50    23    11
2016-2017    23    57    48    28    16
2017-2018    42    56    35    15    11
Overall     737   912   499   206   131
```

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, 67% 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%
2012-2013   25%   43%   25%    6%    2%
2013-2014   26%   34%   25%    8%    7%
2014-2015   25%   35%   25%   10%    5%
2015-2016   19%   39%   25%   11%    5%
2016-2017   13%   33%   28%   16%    9%
2017-2018   26%   35%   22%    9%    7%
Overall     30%   37%   20%    8%    5%
```

Here is a plot of the percentage data.

 Alan Kaminsky • Department of Computer Science • Rochester Institute of Technology • 4572 + 2433 = 7005