The title of this post is a question that we’ve been asking ourselves since we started Retraction Watch in August, and that others have asked us since. And we’ve gotten different answers depending where we look:
- In our first post, we cited a study that found 328 retractions in Medline in the decade from 1995 to 2004.
- A study by Elizabeth Wager and Peter Williams, which we cited in an early post, found 529 between 1988 and 2008.
- A 2009 analysis by Thomson Scientific, at the request of Times Higher Education, found 95 in 2008.
So the real number is a) probably somewhere between 30 and 95 and b) increasing — which isn’t as precise as we’d like, but is hardly the fault of the various people who’ve tried valiantly to count.
Well, we may be a step closer to precision, sort of. Continue reading So how many retractions are there every year, anyway?