This topic always leads to a double face palm for me.
Carnegie R1, although not defined well anywhere so far as I can tell, indicates a doctoral university with the highest research activity. It's some combination of STEM centered research quantity and spending, number of doctoral students, research paper quality and number of academic citations.
As of now there are 115 R1 schools, that's a tiny percentage of all colleges and universities.
https://en.wikipedia.org/wiki/List_o..._United_States
So the Texas schools with R1 status are UT, A&M, Rice, Texas Tech, Houston, UNT, UTA and UTD giving Texas 8 members, I believe California has 10, Mass. 8, New York 7, PA has 5, Georgia 4, Florida 4 and Ohio 3.
I have it on good authority that 3 Texas schools have a great shot to make R1 over the next couple of years. If forced to guess I'd peg them as UTSA, UTEP and Baylor.
Many refer to R1 status as Tier 1, like the folks at The University of Houston.
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To the face-palm part. These schools did not gain Association of American Universities membership. This is the designation that many refer to as Tier 1 as well. Although I'm not sure AAU officials ever use that term.
AAU admission really bothers me with goofy situations like Colorado, Oregon and The University of CA Santa Barbra getting in years before Texas A&M (2001) or Georgia Tech (2010). A&M dwarfs those schools in research as does GT with research spending just below A&M.
I've about decided to stop paying much attention to AAU membership.
Any way congrats to the new R1s.