Researchers who used RIMSs more often or who had high numbers of publications were more likely to endorse other researchers for their expertise. In addition, postdocs showed greater willingness to endorse other members than did full and associate professors (see Fig 1). This result suggests that junior researchers who might not have as many high-impact publications as senior researchers might assign a higher value to alternative indicators of quality, such as peer endorsements. One postdoctoral participant commented,