van Rooyen S, Delamothe T and Evans SJW. Effect on peer review of telling reviewers that their signed reviews might be posted on the web: randomised controlled trial. British Medical Journal 2010;341:c5729
The results of the study suggests that telling peer reviewers that their signed reviews might be available on the BMJ's website had no important effect on review quality. However, it may reduce the number of willing reviewers and increase the amount of time taken to write a review. BMJ believes that the ethical arguments in favour of open peer review outweigh any disadvantage.