This is the correlation between GPA and LSAT score from 2015 and 2017 based on all students from these schools that applied to law school in those years. Students from schools with higher GPA’s also got higher LSAT’s suggesting it is the quality of the average student that is driving both the GPA and the LSAT score. The proximity of most schools to the line indicates that most schools use similar standards of academic excellence for awarding grades, with those notably above the line having grade inflation relative to other institutions, and those notably below the line having grade deflation. The obvious outliers are not Harvard and Yale, which land on the line, but Princeton, which was practicing university-mandated grade deflation at the time, and Brown, where the policy of allowing students to switch to P/F after getting their grade ensures inflation. (U Chicago, UVA and Colgate also have more grade deflation than expected, while Rice has more grade inflation.)
Grades are higher now than they were in 2015 and 2017 everywhere. However, it is very likely that while the intercept changed, the slope remained the same.