This report details the design of the boost Sample Q to the SocioEconomic Panel (SOEP) in 2019. Sample Q supplemented the SOEP Core sample by queer households, including gender and sexual minorities such as lesbian, gay, bisexual, and trans* respondents (LGBTQ*). Recruitment of these households...

Objective: This study examines how changes in cohabitation or marital status affect Body Mass Index (BMI) over time in a large representative sample. Methods: Participants were 20,950 individuals (50% female; 19 to 100 years), representative of the German population, who provided 81,926...

Web surveys technically allow providing feedback to respondents based on their previous responses. This personalized feedback may not only be used to target follow-up questions, it also allows test results to be returned immediately to respondents. This paper argues that the possibility of...