This document discusses public participation in scientific research (PPSR), which aims to establish dialogue between scientists and various target groups to resolve misconceptions and achieve mutual benefit. It outlines three models of PPSR - contributory, co-created, and collaborative - which differ in the level of involvement of public participants in the scientific process, from primarily contributing data to jointly designing and conducting the research. The document also suggests that future PPSR projects could study new scientific questions, engage new audiences, or test improved PPSR models.