Four Big Questions on Carnegie Classifications Changes

It is World Series time, so why not devote a blog post to one of the most fascinating inside baseball conversations within higher education? The Carnegie classifications have served for decades as perhaps the most prominent way to group colleges into buckets of reasonably similar institutions. Indiana University hosted the Carnegie classifications for a long time, but they ended up moving to the American Council on Education after a rather bizarre planned move to Albion College never ended up happening.

After multiple blue-ribbon panels and meetings across the higher education industry, ACE gave the public the first glimpse of what the Carnegie classifications may look like in 2025. There is still a lot of uncertainty about the final results, but the most concrete change is to the coveted Research I university criteria. Instead of being based on ten criteria, the only two criteria moving forward will be $50 million in research expenditures and 70 doctorates awarded. Other classifications are also likely to change, but many more details are needed before I can comment.

After thinking about this for a while and having a great conversation with The Chronicle of Higher Education on the proposed changes, here are the four big questions that I have at this point.

(1) This changes incentives for research universities, and expect plenty of strategy to reach R1 status. Colleges have always been able to appeal their preliminary classification, and it seems like some institutions have successfully shifted from R2 to R1 status before the final classifications were released. But it is a lot easier to game two clearly defined metrics than a complicated set of variables hidden behind some complicated statistical analyses.

Consider the research expenditures figure, which comes from the National Science Foundation’s Higher Education Research and Development survey. HERD data include research expenditures from a range of sources, including federal, industry, foundation, state, and institutional sources. While the first four of these sources are difficult to manipulate, colleges can tweak the amount of institutional funding in a way that meaningfully increases total funding. For example, if faculty are expected to spend 40% of their time on research, the institution can legitimately be seen as putting 40% of that person’s salary on a research line. Some colleges appear to already do this. For example, I found 35 institutions that reported total research expenses between $40 million and $60 million in 2021. The range of institutionally-funded research expenses ranged between $3.7 million and $31.4 million. So there is probably some room for colleges to increase their figures in completely legitimate ways.

The previous R1 criteria heavily rewarded doctoral degree production in a wide range of fields, and now that is gone. This means that health science-focused institutions will now qualify for R1 status, and universities can now feel comfortable reducing their breadth of PhD programs without losing their coveted R1 status. Humanities PhD programs really didn’t need this change, but it is happening anyway.

(2) Will Research I status have less meaning as the club expands? Between 2005 and 2021, the number of universities classified as Research I increased from 96 to 146. The Chronicle’s data team estimates that the number would grow to approximately 168 in 2025 based on current data. Institutions that gain Research I status are darn proud of themselves and have used their newfound status to pursue additional funding. But as the group of Research I institutions continues to grow, expect distinctions within the group (such as AAU membership) to become more important markers of prestige.

(3) Will other classifications of colleges develop? The previous Carnegie classifications were fairly stable and predictable for decades, and this looks likely to change in a big way in 2025. This provides a rare opportunity for others to get into the game of trying to classify institutions into similar groups. Institutional researchers and professional associations may try to rely on the old classifications for a while if the new ones do not match their needs, but there is also the possibility that someone else develops a set of criteria for new classifications.

(4) How will college rankings respond? Both the U.S. News and Washington Monthly rankings have historically relied on Carnegie classifications to help group colleges, with the research university category being used to define national universities and the baccalaureate colleges/arts and sciences category defining liberal arts colleges. But as more colleges have gained research university status, the national university category has swelled to about 400 institutions. The creation of a new research college designation and the unclear fate of master’s and baccalaureate institutions classifications are going to force rankings teams to respond.

I’m not just writing this as a researcher in the higher ed field, as I have been the Washington Monthly data editor since 2012. I have some thinking ahead about how to best group colleges for meaningful comparisons. And ACE will be happy to have colleges stop calling them about how their classification affects where they are located in the U.S. News rankings (looking at you, High Point).

If you made it to the end of this piece, you’re as interested in this rather arcane topic as I am. It will be interesting to see how this all plays out over the next year or two.

How Colleges’ Carnegie Classifications Have Changed Over Time

NOTE: This post was updated on February 2, 2022 to reflect substantial changes between the initial and final Carnegie data releases.

Every three years, Indiana University’s Center on Postsecondary Research has updated Carnegie classifications–a key measure of prestige for some colleges that helps define peer groups. Much of the higher education community looks closely at these lists, and doesn’t hesitate to share their opinions about whether they are correctly classified.

The 2021 version includes many different types of classifications based on different institutional characteristics. But the basic classification (based on size, degrees awarded, and research intensity) always garners the most attention from the higher education community. I took a look at the 2018 update three years ago, and this post provides an updated analysis of the 2021 classifications.

The item that always gets the most attention in the Carnegie classifications is Research 1 (research universities: very high activity) status, as this is based on research metrics and is a key indicator of prestige. The R1 line has continued to grow, moving from 96 universities in 2005 to 146 in 2021. Notably, nine additional universities were added to the R1 list between the initial data release in December 2021 and the final release in January 2022. This includes three universities that were initially moved down to R2 and successfully managed to get moved back through either correcting data errors or appealing their classification.

YearR1R2R3Total
2021146134189469
2018131132161423
2015115107112334
20101089889295
20059610281279

At the two-year level, there are competing trends of institutional consolidations in the for-profit sector and more community colleges offering bachelor’s degree programs. The number of baccalaureate/associate colleges declined substantially in 2021 (going from 269 in 2018 to 202 in 2021), but this is mainly driven by reclassifications between the initial and final data releases (going from 250 to 202).

2021: 202

2018: 269

2015: 248

2010: 182

2005: 144

IPEDS counts these institutions as four-year universities, but the Carnegie classification (basic codes 14 and 23) is a better way to flag them as two-year colleges.

Going forward, Carnegie classifications will continue to be updated every three years in order to keep up with a rapidly-changing higher education environment. It remains to be seen who will host the classifications following a falling-out with Albion College, and I’m very much intrigued by the high number of reclassifications this time around. It’s never dull in higher ed data land!


How Colleges’ Carnegie Classifications Have Changed Over Time

Right as the entire higher education community was beginning to check out for the holiday season last month, Indiana University’s Center on Postsecondary Research released the 2018 Carnegie classifications. While there are many different types of classifications based on different institutional characteristics, the basic classification (based on size, degrees awarded, and research intensity) always garners the most attention from the higher education community. In this post, I look at some of the biggest changes between the 2015 and 2018 classifications and how the number of colleges in key categories has changed over time. (The full dataset can be downloaded here.)

The biggest change in the 2018 classifications was about how doctoral universities were classified. In previous classifications, a college was considered a doctoral university if it awarded at least 20 research/scholarship doctoral degrees (PhDs and a few other types of professional doctorates such as EdDs). The 2018 revisions counted a college as being a doctoral university if there were at least 30 professional practice doctorates (JDs, MDs, and other related fields such as in health sciences). This resulted in accelerating the increase in the number of doctoral universities that has existed since 2000:

2018: 423

2015: 334

2010: 295

2005: 279

2000: 258

This reclassification is important to universities because college rankings systems often classify institutions based on their Carnegie classification. U.S. News and Washington Monthly (the latter of which I compile) both base the national university category on the Carnegie doctoral university classification. The desire to be in the national university category (instead of regional or master’s university categories that get less public attention) has contributed to some universities developing doctoral programs (as Villanova did prior to the 2015 reclassification).

The revision of the lowest two levels of doctoral universities (which I will call R2 and R3 for shorthand, matching common language) did quite a bit to scramble the number of colleges in each category, with a number of R3 colleges moving into R2 status. Here is the breakdown among the three doctoral university groups since 2005 (the first year of three categories):

Year R1 R2 R3
2018 130 132 161
2015 115 107 112
2010 108 98 89
2005 96 102 81

Changing categories within the doctoral university group is important for benchmarking purposes. As I told Inside Higher Ed back in December, my university’s moving within the Carnegie doctoral category (from R3 to R2) affects its peer group. All of the sudden, tenure and pay comparisons will be based on a different—and somewhat more research-focused—group of institutions.

There has also been an increase in the number of two-year colleges offering at least some bachelor’s degrees, driven by the growth of community college baccalaureate efforts in states such as Florida and a diversifying for-profit sector. Here is the trend in the number of baccalaureate/associate colleges since 2005:

2018: 269

2015: 248

2010: 182

2005: 144

Going forward, Carnegie classifications will continue to be updated every three years in order to keep up with a rapidly-changing higher education environment. Colleges will certainly be paying attention to future updates that could affect their reputation and peer groups.