During the two-year project period of CH@YOUPART an online survey of 1'000 young Swiss people will be conducted. The aim is to obtain information on the forms of political participation and the political interests of 18 to 25 year olds and to clarify why some young adults are politically active and why some are not. The questionnaire used for the survey is similar to the one developed and used in the context of the EUYOUPART project. This EU project addressed the political participation of young adult in seven European countries (Germany, Austria, Finland, Italy, Great Britain, France, Slovakia, Estonia). Thus, the direct comparison of the collected Swiss data with the international EUYOUPART data will be possible. This design makes it possible to obtain detailed information about the variety of political activities of young adults in Switzerland and the causes for their behavior as well as to compare this Swiss picture with the situation in other European countries. Additionally, expert interviews and focus groups are planned to illustrate the opinions and activities of young adults in Switzerland regarding politics.