Researchers are generally unfamiliar with data-related funder policies.

Respondents based at US institutions self-reported their familiarity with three government funder policies: the Whitehouse OSTP Open Data Initiative (n = 197), NSF Data Management Plan requirements (n = 197), and the NIH data sharing policy (only biologists included, n = 76). White dots show the mean familiarity for each item; error bars depict bootstrapped 95% confidence intervals.