The Kruskal–Wallis omnibus test of the endorsement motivation scales on seniority groups revealed significant differences for the Expertise scale (χ2 = 11.57, p = 0.02). The Dunn–Bonferroni tests of post hoc pairwise comparisons indicated that postdocs had significantly higher mean ranks for that scale than did assistant professors (see Fig 7). A similar analysis of the scales by discipline did not reveal significant differences.