Danielle Barandiaran et al. have published "Focusing on Student Research In The Institutional Repository DigitalCommons@USU" in College & Research Libraries News.
Here's an excerpt:
Student research is a significant and rapidly growing component of the institutional repository (IR) at Utah State University (USU). A briefing paper prepared for Open Access Scholarly Information Sourcebook (OASIS) points to student works as one of nine purposes for an IR.1 It is not uncommon to find undergraduate and graduate theses and dissertations in IRs. In 2013, an analysis of 283 U.S. repositories using the bepress or DSpsace platforms indicated 71% include this type of student research. However, other student research such as posters, presentations, or papers were only found in 38% of these repositories. Utah State University's IR actively solicits student research resulting from research groups and individuals, as well as posters and creative works featured in the university's Student Showcase symposium.