In the context of Wahl-O-Mat research, there have already been numerous projects. Here you can find them described in detail. 

VAA Research Network (still running)

Thyssen-Förderung Bundestagswahl 2021 (completed)

Thyssen-Förderung Bundestagswahl 2017 (completed)

Projekt Landeszentrale für politische Bildung NRW 2017 (completed) 

Thyssen-Funding European Election 2014 (completed)

Workshop Schloss Mickeln 2011/12 (completed)

SFF - Wahl-O-Mat-Research 2011/12 (completed)