From interviewing 20,000 physicians about the health system's structures to surveying the patients' satisfaction after specific surgery up to population representative studies on health behaviour – infas health research covers the entire spectrum:
- physicians' surveys,
- patients' surveys and
- insurants' surveys.
Standards at infas are reliable representation of target groups due to sound sampling, tailor-made survey designs as well as detailed development of survey instruments and obligatory pretests. It is vital to ensure that each single question can be understood correctly and answered unambiguously – even and specifically so by outsiders who are not familiar with the complex health system's structures and concepts. Such research can be conducted as postal, telephone, face-to-face, and online survey.