Thus, the three participation levels were based on whether researchers completed the following three activities: maintained a RIMS profile, answered questions, and endorsed researchers (see Fig 1). Note that the levels were defined in a progressively cumulative manner. Researchers who belonged to the Record Manager level had to maintain their profile, but they also did not engage in the other two activities: answering questions or endorsing other researchers. On the other hand, researchers who belonged to the Community Member level had to engage in either of those two activities (i.e., answering questions or endorsing researchers) in addition to maintaining their profile.