Main Study 2009/10, Study Number B72
1 Master sample: Adults (panel entry in 2007/08, ALWA)
1.1 Target persons: Adults of birth cohorts 1956 to 1986
- Sample: Panel sample. Follow-up survey with the 2007/08 ALWA participants of the birth cohorts 1956 to 1986 willing to participate in the panel.
2 Complementary sample: Adults (panel entry in 2009/10)
2.1 Target persons: Adults of birth cohorts 1944 to 1986
- Sample: Sample drawn from the register of residents. The sample consists of a refreshment of birth cohorts 1956 to 1986 (who basically correspond to the target persons of ALWA) and an augmentation of birth cohorts 1944 to 1955
| n |
explanation |
| 11,649 |
interviewees, of these: |
| 6,495 |
1.1 panel interviewees from the master sample (ALWA)
|
77
|
1.1 recruited participants from the master sample (ALWA)*
|
5,077
|
2.1 first-time interviewees from the complementary sample (refreshment and augmentation) |
* Note that 77 non-German-speaking persons were recruited for the ALWA sample but were interviewed in NEPS wave 2009/10 with a foreign-language version of the NEPS questionnaire.
Field time: November 6, 2009, to June 30, 2010
Data collection: Infas – Institute for Applied Social Sciences, Bonn
Mode of survey: Computer-assisted telephone interview (CATI) or computer-assisted personal interview (CAPI)