The results of a resurvey of non-respondents to the SOEP study carried out in 2006 show that this special effort of reinterviewing was relatively ineffective in two respects. First, the rate of successful conversions of passive to active respondents was low (less than 20 percent). Second, the...

Background: The National Cohort (Nationale Kohorte = NaKo ) will be one of the largest cohort studies in Europe to include intensive physical examinations and extensive information about the socio-demographic background and behavior of the subjects. However, regional selectivity of the study and...

This paper discusses how household panels in general - and the German Socio-Economic Panel (SOEP) in particular - an serve as reference data for researchers collecting datasets that do not represent the full universe of the population of interest (e.g., through clinical trials, intervention...

This article describes how the German Socio-Economic Panel longitudinal study project developed over the years 1983 to 1989, a period when practical experience was being gathered with the first six waves and when the further funding for this large-scale project was a constant issue. During this...