Andrea Hopf, born in 1982, (Dipl.-Soz.-Wiss.), has been working as Research Scientist at Justus-Liebig-University Giessen since Jun 2012. In May 2009 she graduated in social sciences at the Justus-Liebig University Giessen and got her diploma degree. After working in several research projects at the Technische Hochschule Mittelhessen, she joined at the University Giessen in Jun 2012. The different methods of empirical social research have been one focus in her studies. As part of pillar 2 , she is responsible for the conceptualization and development of questionnaires and research instruments.