<p>Blackpen, </p>
<ol>
<li>MIT shows a similar trend of increasing GPA over the same time period.<br></li>
</ol>
<p>I don’t think the trend of increasing gpa on its own over time is sufficient to argue for grade inflation due to the fact that this trend seems present in all universities. I don’t think anyone would make the argument that MIT is grade-inflated, yet it shows the same increasing trend.</p>
<ol>
<li>Johns Hopkins, although they have a very small time period sample, shows a similar average gpa (2006-3.24) to UMich-Ann Arbor (2006-3.25).</li>
</ol>
<p>Most people (hopefully you do) accept the fact that Hopkins is grade-deflated, so this should give a good benchmark for what a “grade-deflated” average gpa is among top institutions. </p>
<ol>
<li>Compare gpas during the same time period among schools of the same caliber</li>
</ol>
<p>Instead of using the omnipresent trend of increasing average gpa over a long time period to argue for grade deflation/inflation, you should look at similar schools during the same time period. For example, Duke has a recent average gpa of 3.42 (2006). UC Berkeley has an average gpa of 3.27 (2006). Is the caliber of students accountable for a .15 difference in average gpa, or is it something akin to grade deflation instead? When you take into account that the average gpa of UMich engineering students is around 2.7 or 2.9, it seems likely that there are institutional differences at play. Most strikingly, this is illustrated by a comparison between Princeton and Yale. Princeton (2008, 3.28) is well-known for grade deflation in the sense that they explicitly limit the number of As to a certain percentage of students in every class. Yale (2008, 3.51), in contrast, has an average gpa that is .23 higher than that of Princeton and, to the best of my knowledge, has no such grading policy in place. Even among the most staunch supporters of USNWR rankings will not argue a significant difference in the quality of students among these two institutions and yet there is a disparity in gpa of .23. Harvard (2006, 3.45), without Princeton’s grading policy and with a similar student caliber, provides additional support to this argument.</p>
<p>In contrast, the trend of increasing gpa over time can, at least in part, be explained by the similar trend of better students over time as rjkofnovi indicated in the post above.</p>
<p>In conclusion, I would argue that UMich-LS&A either has grade deflation or does not have grade inflation.</p>