About the hAndbook This Handbook, called ENGAGE 2.0, presents 30 expert tips for improving the research participant user experience. In 2017, we issued version 1.0 of ENGAGE with 101 tips covering a range of data collection methods. Our intention with ENGAGE 2.0 is to focus on online sur- veys and restrict the number of tips to 30, which we believe are very import- ant when it comes to giving the research participant a great user experience and therefore equally important to improving participant engagement and building trust. The Handbook is based not only on our own research-on-research, but also on the expertise of our partners who we cannot thank enough for both their support of the initiative and for their willingness to share their wisdom. The primary objective of the Handbook is simple: to PRoVIde CLIent- And AGenCY-SIde ReSeARCheRS PRACtICAL AdVICe on hoW to IMPRoVe the eXPeRI- enCe PeoPLe Get When PARtICIPAtInG In ReSeARCh. ENGAGE 2.0 - 30 TIPS TO IMPROVE THE RESEARCH PARTICIPANT USER EXPERIENCE – A GRBN Handbook © 2020 GRBN 6