Eyre-Walker and a colleague, Nina Stoletzki, examined more than 6,000 published papers that experts reviewed after publication. The papers came from two databases. One is that of a research funding organization, the Wellcome Trust, which asks experts to review papers it's funded after their publication. The other was the Faculty of 1000, a website where biologists post papers they like, score them, and chat about them. In these two databases, Eyre-Walker and Stoletzki found that scientists assessing the same paper didn't give the paper the same score much more often than they would by chance.