Generations and Gender Survey Germany-Turkish subsample 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: Money.

2. Tracking of sampled units 2.1 Respondent contact information: Yes, addresses (not email-addresses). 2.2 Other contact information: 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.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: The participants in the sub-sample received € 10 from the interviewer as an incentive. The participants were informed about this in the advance letter.

2. Tracking of sampled units 2.1 Respondent contact information: Yes, addresses (not email-addresses). 2.2 Other contact information: Yes. 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 (planned frequency of contacts with the respondents between the two waves: 3). Furthermore, a brochure with results of Wave 1 was sent. 2.5 Administrative records: Yes (Einwohnermeldeamt) The survey was carried out in the period from mid-September 2009 to mid-February 2010. A fieldwork time of three months to mid-December 2009 had originally been planned. Because of the n=884 interviews that had been carried out by mid-December and of a relatively promising share among those who were not reached, TNS Infratest Sozialforschung decided to invest in additional, unplanned post-processing. This post-processing contributed important additional interviews, so that a total of n=1,033 questionnaires had been carried out by mid-February 2010.

WAVE 1 DATA COLLECTION

1. Interviewers 1.1 Total number of interviewers: 321. 1.2 Number of interviewers in the field: NA 1.3 Network organization: Centralized network with 6 regions being coordinated from TNS infratest. Local 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 (successful 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: Yes, interviewers could make use of a general contact letter as soon as they contacted the household. 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: Yes, with 50 persons; normal survey rules using the CAPI software. 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: 73 minutes, with wide range (minimum 37 minutes, maximum 185 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: 197. 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. 1.5 Payment of interviewers: DK

2. Interviewer training: 2.1 General interviewing: Yes 2.2 Survey specific: The interviewers were trained using written training material which contained both the objectives of the study, the nature of the selection process and information on individual difficult complexes of questions. 2.3 Length: DK 2.4 Control of performance: Routine postcard checks in 10% of all interviews conducted. As soon as abnormalities emerge, this triggers a check of all interviews conducted by the interviewer in question. Follow-up visits are also carried out by contact interviewers in ambiguous cases, in addition to postcard checks. 2.5 Interviewer survey: DK

3. Contact protocols 3.1 Advance letter: Prior to the questioning by the interviewers, the respondents received a centrally-dispatched letter informing them of the coming questionnaire. 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: No. The computer-aided questionnaire program was taken over from the main GGS survey conducted on the German sample, which had been tested in detail by Infratest and the BIB prior to the field phase. 4.3 Length of interview: Average length of interview: 69 minutes , with wide range (minimum 29 minutes, maximum 142 minutes) according to the composition of the household and the biography of the respondent. As had already been the case in the first survey wave, interviews in which the Turkish translations were used, at an average of 88 minutes, were much longer than those which were conducted in German(65 minutes).