<p>This has gotten too far astream of what the OP is asking, so my last post on this topic. But…</p>
<p>You can download the entire Spring 2013 schedule of classes at <a href=“http://osoc.berkeley.edu/osoc/Spring2013ScheduleUG.pdf[/url]”>http://osoc.berkeley.edu/osoc/Spring2013ScheduleUG.pdf</a> I did, converted it to text, searched for the string LEC which indicates lecture sections. Turns out there are only 1,996 classes listed as lectures, even though the numbers in the Common Data Set indicate there should be 3,874. </p>
<p>1,996 lecture sessions on par with what UC San Diego offers, and to me is much more plausible than believing Cal offers twice as many distinct classes to about the same number of undergrads. </p>
<p>I am pretty sure at this point the reported class size in the Cal Common Data Set is wrong, and that they counted discussion sections as regular classes.</p>