Which has smaller class sizes, Arizona State University or Adelphi University?

The biggest practical tradeoff is scale: Arizona State offers the resources, course variety, and energy of a very large public university, while Adelphi’s much smaller undergraduate population creates a more intimate day-to-day academic environment. Adelphi generally has smaller classes and is more likely to give you frequent participation and repeated contact with professors.

At ASU, introductory courses, especially in popular majors, can be large lectures, sometimes supplemented by smaller discussion sections or labs. Class sizes often shrink in upper-level major courses, honors classes, and certain specialized programs, but you would need to be proactive about attending office hours, using discussion sections, and selecting smaller electives. ASU can still feel personal for students who seek out faculty and smaller academic communities, but that experience is less automatic because of the university’s size.

Adelphi is a private university with a substantially smaller student body, and its academic model is more centered on seminar-style discussion, accessible professors, and close advising. This is particularly relevant if you learn best by speaking in class, asking questions during lectures, and building relationships with instructors rather than primarily learning in large lecture halls.

For the specific goal of smaller classes and a more personal classroom experience, Adelphi is the clearer choice. ASU may make more sense only if its particular major, campus, programs, or broader university opportunities outweigh your preference for consistently smaller learning environments.