Generations and Gender Survey Germany Wave 1 & Wave 2

Method: Face-to-Face (personal interview) Technique: Computer-Assisted (CAPI)

WAVE 1 ACTIONS

1. Dealing with nonresponse 1.1 Screening: No. 1.2 Refusal conversion: No specific training for this project, only general training 1.3 Incentives: Yes, lottery ticket amounting to 10 €.

2. Tracking of sampled units 2.1 Respondent contact information: Yes, adresses (no email-adresses) of the respondent were collected. The adresses are only known by TNS-Infratest. 2.2 Other contact information: DK 2.3 Cards: A "thank-you-letter" and birthday- and holiday cards were sent to all the respondents (planned frequency of contacts with the respondents between the two waves: 3). Furthermore, a brochure with results of Wave 1 was sent.
   2.4 Additional surveys: No 2.5 Administrative records: NA

WAVE 2 ACTIONS

1. Dealing with nonresponse 1.1 Screening: Yes. The sending of letters between the two waves provided a chance to check for potentially changing addresses on a yearly basis. In addition to annual contacts, enquiries were also made to the residents’ registration offices with regard to those individuals where our letters were returned by the post office and where the ensuing postal enquiries did not provide a valid address. 1.2 Refusal conversion: DK 1.3 Incentives: In order to achieve as high a response rate as possible, the respondents who had given an interview received as an incentive a ticket for the ARD television lottery by post following their participation.

2. Tracking of sampled units 2.1 Respondent contact information: Yes, adresses (no email-adresses) of the respondent were collected. The adresses are only known by TNS-Infratest. 2.2 Other contact information: DK 2.3 Cards: Regular panel maintenance was carried out in the interim period by TNS Infratest. A "thank-you-letter" and birthday- and holiday cards were sent to all the respondents willing to be re-contacted. Also the so called GGP-Journal in the first 2 years (end of 2005 and 2006) was sent. Two letters announcement of the beginning of the next wave at the end of 2007 and in 2008. 2.4 Additional surveys: No 2.5 Administrative records: Yes (Einwohnermeldeamt) A field-work time of three months from mid-September 2008 to mid-December 2008 had originally been planned. Because only n=3,018 interviews that had been carried out by the end of December and because of a relatively promising share among those who were not reached, TNS Infratest Sozialforschung decided to invest in additional, unplanned post-processing. A total of n=3,285 questionnaires had been carried out by the end of March 2009.

WAVE 1 DATA COLLECTION

1. Interviewers 1.1 Total number of interviewers: 528. 1.2 Number of interviewers in the field: NA 1.3 Network organization: Centralized network with 6 regions being coordinated from TNS infratest. Loca field coordinators were responsible for the fieldwork conducted within the region. 1.4 Working arrangement of interviewers: Part time. 1.5 Payment of interviewers: Paid per interview (succesful contact).

2. Interviewer training: 2.1 General interviewing: Not for this project but in general with training materials distributed by central network and training conducted locally by field coordinators. 2.2 Survey specific: Yes, by sending written interviewer instruction before fieldwork started. 2.3 Length: 1 hour. 2.4 Control of performance: For randomly selected 10% of the interviews postcards with some questions about fieldwork (e.g. length of interview) were sent to the respondent. In case of questionable interviews the whole work (100%) of the interviewer was controlled. 2.5 Interviewer survey: No.

3. Contact protocols 3.1 Advance letter: No. 3.2 Cold contacts: Face-to-face. 3.3 Scheduling / scattering: Yes, interviewers were entitled to scatter contact attempts by making sure that more than 50% of contact attempts were in the afternoon of week-days or on week-ends. 3.4 Contact history: No. 3.5 Min number of contacts: 4. 2.6 Max number of contacts: No.

4. Questionnaire localization 4.1 Validation: No. 4.2 Pre-test: One pre-test carried out using CAPI version of the questionnaire in winter 2004/05 (115 respondents). Country-specific response catagories were used for questions on e.g., education and occupation. 6 additional country-specific questions were added as compare to the harmonised questionnaire. These questins concern family policy measures, fertility intentions and abortion. 4.3 Length of interview: Average length of interview: 57 minutes, with wide range (minimum 27 minutes, maximum 164 minutes) according to the composition of the household and the biography of the respondent.

WAVE 2 DATA COLLECTION

1. Interviewers 1.1 Total number of interviewers: 404. 1.2 Number of interviewers in the field: DK 1.3 Network organization: Centralized network coordinated from TNS infratest. 1.4 Working arrangement of interviewers: Interviewers deployment followed the principle that the same interviewers were deployed again for the follow-up questionnaire wherever this was possible and meaningful. All in all, the same interviewer as in 2005 was only deployed with somewhat more than half the respondents.

2. Interviewer training: DK

3. Contact protocols 3.1 Advance letter: Yes - shortly before starting the fieldwork in 2008 3.2 Cold contacts: NO. 3.3 Scheduling / scattering: DK 3.4 Contact history: DK 3.5 Min number of contacts: DK 2.6 Max number of contacts: DK

4. Questionnaire localization 4.1 Validation: No. 4.2 Pre-test: CAPI questionnaire was tested in the pilot which was carried out in July 2008 on 31 respondents. 4.3 Length of interview: Average length of interview: 59 minutes , with wide range (minimum 32 minutes, maximum 107 minutes) according to the composition of the household and the biography of the respondent.