Arlitsch, KenningWheeler, JonathanPham, Minh Thi NgocParulian, Nikolaus Nova2021-03-292021-03-292020-11Arlitsch, Kenning, Jonathan Wheeler, Minh Thi Ngoc Pham, and Nikolaus Nova Parulian. “An Analysis of Use and Performance Data Aggregated from 35 Institutional Repositories.” Online Information Review 45, no. 2 (November 12, 2020): 316–335. doi:10.1108/oir-08-2020-0328.1468-4527https://scholarworks.montana.edu/handle/1/16176Purpose This study demonstrates that aggregated data from the Repository Analytics and Metrics Portal (RAMP) have significant potential to analyze visibility and use of institutional repositories (IR) as well as potential factors affecting their use, including repository size, platform, content, device and global location. The RAMP dataset is unique and public. Design/methodology/approach The webometrics methodology was followed to aggregate and analyze use and performance data from 35 institutional repositories in seven countries that were registered with the RAMP for a five-month period in 2019. The RAMP aggregates Google Search Console (GSC) data to show IR items that surfaced in search results from all Google properties. Findings The analyses demonstrate large performance variances across IR as well as low overall use. The findings also show that device use affects search behavior, that different content types such as electronic thesis and dissertation (ETD) may affect use and that searches originating in the Global South show much higher use of mobile devices than in the Global North. Research limitations/implications The RAMP relies on GSC as its sole data source, resulting in somewhat conservative overall numbers. However, the data are also expected to be as robot free as can be hoped. Originality/value This may be the first analysis of aggregate use and performance data derived from a global set of IR, using an openly published dataset. RAMP data offer significant research potential with regard to quantifying and characterizing variances in the discoverability and use of IR content.en-USThe version of record is available at https://doi.org/10.1108/OIR-08-2020-0328. The full citation is as follows: [An analysis of use and performance data aggregated from 35 institutional repositories. Online Information Review ahead-of-print, ahead-of-print . 'This author accepted manuscript is deposited under a Creative Commons Attribution Non-commercial 4.0 International (CC BY-NC) licence. This means that anyone may distribute, adapt, and build upon the work for non-commercial purposes, subject to full attribution. If you wish to use this manuscript for commercial purposes, please contact permissions@emerald.com'https://creativecommons.org/licenses/by-nc/4.0Article