Another retraction from University of Waterloo, this time for duplication

Canada’s University of Waterloo is racking up the retractions, with one in July for plagiarism, another earlier this month for faked data from a graduate student who had her master’s degree revoked, and now a third for duplication.

Here’s the notice, for “The influence of friends, family, and older peers on smoking among elementary school students: Low-risk students in high-risk schools,” which appeared in Preventive Medicine in March 2006: