Research and partners

Studies conducted between 2005 and 2009 found that participants in CoSA committed between 70 and 83% fewer offences than those who did not participate in the program.

CoSA Canada continues to work with research partners to build effective strategies to reduce recidivism and understand the impact our program has on keeping communities safe. The national office and CoSA sites are currently participating in an independent evaluation which will provide a qualitative and quantitative analysis of CoSA work in Canada.

We also benefit from the extensive research that is taking place at Circles UK and the Circles Europe Association, and at CoSA sites in the United States. Recent research about CoSA is provided below.

If you would like to partner with us for your research, contact


CoSA providers and associates involved in current or prior research initiatives include:


Below is a selection of research and reading resources. Further academic writing on CoSA is accessible to campus-affiliated researchers and students or can be purchased from the publisher.

Elliott, H., Hocken, K., Lievesley, R., Blagden, N., Winder, B., Banyard, P., Eds.
Chris Wilson, Terry Philpot, and Stephen Hanvey
Judah Oudshoorn, Lorraine Stutzman Amstutz and Michelle Jackett
Keith L. Kaufman, Ed.