Earlier this year, Wiley conducted a survey on researchers views of data sharing. The publisher contacted 90,000 researchers across a wide array of disciplines and received more than 2,250 responses from individuals engaged in active research programs.
“First, of the 52% of respondents who said they had made their data publicly available, the largest proportion (67%) did so via supplementary material in journals. That subset more or less tallies with the average take-up we see at Wiley of the supporting information facility (c. 30%), but this varies considerably by discipline, and of course not everything in supporting information is data. Other ways in which researchers reported making data publicly available, such as in repositories (which are better suited to long term data management and preservation), are dwarfed by this proportion.”