<p dir="ltr">Data supporting a paper titled "Do data management policies become more open over time?"</p><p dir="ltr">The data includes three matrices created as part of a framework analysis. The Reasons and Adjectives data show a binary coding of whether a policy contains the term or idea. The Policies matrix contains values from 0 - 4 with 0 representing a very closed policy type and 4 representing a very open policy type. The details of these policies can be found in https://doi.org/10.31235/osf.io/gd4hp_v2</p><p dir="ltr">Associated code can be found at: 10.25418/crick.28788704</p>