Data

The K²ID projects collect new data supplementing two large German panel studies: 1) the German Socio-Economic Panel Study (SOEP) in combination with the Families in Germany Study (FiD), and 2) the TwinLife Study. The K²ID-SOEP data comprise information on more than 2,300 German families with young children and about 850 ECEC institutions serving them. The K²ID-Twins samples include 2,020 twins in 1,016 households and information from 485 ECEC institutions.

The following pages will provide details on the samples forming the basis of the K²ID studies including response rates, as well as documentation of the data collection process. Also, interested researchers can learn how to obtain data access.