The overriding question of the FLB project is: “in what way do Leitbilder (principles) influence reproductive behaviour?” To answer this question it is necessary to identify and describe family-related Leitbilder. The driving factor behind this project is that research in this area has neglected to focus on normative-cultural conditioning proportional to structural and socio-economic variables. Therefore, the primary aim of this research project his to close this gap and enable use of the findings in particular to explain the persistently low birth rate in Germany.

In the first phase in 2010, the possibilities of theoretical grounding, the current state of research, methodical preliminary considerations and potentials for analysis of existing data sources, were examined in order to derive specific questions from them. Since then, we have also designed a questionnaire on the basis of further preliminary theoretical and empirical work (qualitative preliminary studies) in order to research the family-related Leitbilder of young people in Germany more precisely. We commissioned the opinion research institute TNS Infratest to conduct the survey for our FLB study. From August to November 2012 the interviewers from TNS Infratest interviewed 5,001 randomly selected people aged between 20 and 39 in a nationwide representative telephone study. The second wave was finally conducted in 2016.

It becomes apparent that the distinction between individual expectations and perceived concepts of family in society as a whole generates interesting findings, differences are clearly evident. Furthermore, the newly designed questions – for example those regarding role models for mothers and fathers as well as acceptance of differing couple and family configurations – will generate valuable knowledge. The data set also contains great potential for analysis, especially with regard to possible explanations for differences in fertility between eastern and western Germany.