SOURCE 1: From an editorial in the Northwest Central Times: Yesterday, Professor John Willerby was awarded a Certificate of
Excellence in Education by the president of Northwest Central University, Students who pass his Psychology 101 class score higher on the Social Sciences Aptitude Test by a staggering margin of 90
percent on average. His excellent teaching and his students' excellent
work are truly representative of NCU's high standards in education.

SOURCE 2: From a student email: I am really freaking out about Willerby's class. Sure, students who graduate from Psychology 101 do way better on the Social Sciences Aptitude Test than everybody else,
but only 10 percent of them actually pass! The man puts a cap on the
number of students who can score a satisfactory grade, so even really
good students fail. And the ones who do pass aren't even that good. They're just more competitive. One of these 'model pupils" checked out all of the psychology books in the library so that nobody else could read them!

Which claim do the two sources most clearly disagree on?