Learn About the DLSY-C

The Danish Longitudinal Survey of Youth – Children (DLSY-C; in Danish: Generationsundersøgelsen) is a survey which samples all children born to all participants in the Danish Longitudinal Survey of Youth (DLSY).

The DLSY-C was motivated by pending research questions in social science research on intra- and intergenerational social mobility. Notably, what are the resources, processes, and mechanisms that explain persistence in socioeconomic and social outcomes across generations? The DLSY-C focuses on intergenerational relations since information on the DLSY-C respondents can be linked to, first, information on parents collected over the period 1968-2004 (data available in the DLSY Cumulative 1968-2004 File) and, second information on grandparents (the parents of the original DLSY respondents). Furthermore, information on all three generations can be linked to data from administrative registers which provide comprehensive longitudinal information on, for example, education, income, social transfers, labor market history, and health care usage. Finally, the DLSY-C may also be used for within-family comparisons because in many cases several children of each DLSY respondent have been interviewed.


The total population of DLSY-C children is 5,468. However, not everybody in the population is eligible for interview in the DLSY-C due to, for example, having died, moved abroad, or being below the age limit (14 years of age). It is possible to link data from administrative registers for all 5,468 DLSY-C respondents. The active sample of respondents eligible for interview consists of 4,338 respondents. This sample includes all respondents who meet the criteria for inclusion in the DLSY-C. Interviews were completed with 3,515 respondents, which amount to a response rate of 81%.

Items in the first wave of the DLSY-C

First, the survey contains information on respondents’ educational career: Did respondents attend public or private primary school, which type of secondary and tertiary education did they complete, and what was their Grade Point Average (GPA) from primary and secondary education? In addition, a series of questions i asked to learn more about respondents’ motivation for choosing different types of education and their beliefs about returns to education.

Second, several items from the DLSY is replicated capturing respondents’ economic, cultural, and social resources. Regarding economic resources, information was obtained on respondents’ income and property (home, care, boat, and summerhouse). Regarding cultural resources, we asked whether respondents subscribed to a newspaper, their interest in visual arts, number of foreign languages spoken, and their cultural consumption over the past 12 months. Regarding social resources, there is information on whether respondents have social connections in business, public administration, and political life in the area in which they live.

Third, there is baseline information on respondents’ cognitive ability and personality traits. A sub battery of items from the IST (Intelligens Struktur Test) 2000R test was used to assess respondents’ cognitive ability. The IST 2000R is designed to measure general intelligence and related domains.

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