Half of Ivy League schools lower their admissions standards

Here is what colleges said that they used in admissions a year or few ago, based on their common data set section C7 entries:

http://talk.collegeconfidential.com/college-admissions/2131779-what-colleges-use-in-admissions-according-to-cds-listings.html

Includes charts for all, public, private non-profit, private for-profit, USNWR top 25 national universities, and USNWR top 26 LACs.

As you can see, colleges generally saw grades, rigor, and test scores as being the most important factors, but the most selective colleges also increased the importance of other criteria, especially recommendations, essay, talent, and character/personal.