%K citizen participation %K Brexit %K public opinion %I UK Data Service %T Citizens' assembly on Brexit recruitment and participant survey 2017-2018 %A Alan Renwick %A Will Jennings %A Rebecca McKee %A Meg Russell %A Graham Smith %L reshare853589 %X The data contains 6 of survey stages t0-T5. Surveys were designed to answer two questions regarding citizens' assemblies: (1) whether and how they can be used successfully in the context of existing intense and polarized debate; and (2) whether and how a diverse and representative membership can be secured. We surveyed 5,000 people to recruit participants for the Citizens' Assembly then we resurveyed the participants of the assembly, the control group and those who we invited but could not / declined to attend. The first survey was conducted online through the polling company ICM further surveyed were run in house at UCL either on paper at the assemblies or through google forms.