Data and Code for: Higher STCW-Aligned BRM Knowledge Is Associated with Flatter Authority Gradient Attitudes in Pre-Certification Naval Cadets

This deposit contains the de-identified dataset, research instruments, content-validity evidence and analysis code for the article above. All 70 third-year cadets in a Bridge Resource Management course at a national naval academy took part (census sample); none was yet certified and none had ship-command experience. STCW-aligned BRM knowledge and stated willingness to challenge unsafe decisions were positively correlated (rs = 0.546, 95% CI [0.36, 0.69], p < .0001). The design is cross-sectional and measures stated attitudes, not behaviour. Version 1.3 accompanies the final revision: the analysis script adds the keying-balanced subset comparison and now prints every value in Sections 3.1–3.3 of the article; Figure 1, Figure 2 and both supplements are updated; the dataset is unchanged. Version 1.4 corrects the data-collection date in the README (main data collected on 9 July 2026, after a pilot on 8 July); no other file changed. Participants were told their data would be used solely in aggregate, so the files are under restricted access and are available on reasonable request, for verification or reanalysis only.