conference programme book - European Survey Research ...

42 TUESDAY 19 JULYThis paper examines the interrelaonships between race, parsanship and polical trust over a 50-year periodin the United States. An ongoing uncertainty as to the nature of the effects of race and parsanship stems fromthe type of data used in studies of the socio-demographic bases of polical trust. Most studies only considerone or two me points, making it difficult to consider the role of the larger context. If trust is lower amongBlacks and/or Democrats in a given year this may be because the members of these groups have lower levelsof trust in the polical system. However, if, rather than reflecng trust in the system, trust reflects atudestowards current polical authories, then trust levels could depend on whether the party in power in a givenyear was Republican or Democrat...1.18 Mixed-Mode Surveys: A Total Survey Error Perspecve IITo be held on July 19, 2011 from: 14:00 to 15:30, in room 315.Coordinated by:• Don A. Dillman - Washington State University, United States• Edith De Leeuw - University of Utrecht, Netherlands1.18.1 Is a Mixed-Mode Approach to Reduce Arion in a Longitudinal Mental Health Study (NESDA) aGood Idea?A. Hoogendoorn 2 , F. Lamers 2 , C. Hoekstra 1 , B. Penninx 2 , J. Smit 31 Vrije Universiteit Amsterdam, Netherlands; 2 GGZ inGeest Instute of Psychiatry and Mental Health, Netherlands;3 Vrije Universiteit Medical Center Amsterdam, NetherlandsIn longitudinal studies arion may cause problems, since a selecve drop out of respondents will bias researchresults. In mental health studies it is well known that respondents (paents) who suffer more severely frompsychiatric disorders usually drop out earlier from the study. To minimize these problems, it is recommendedto make efforts to keep the arion as low as possible. In the NESDA study, the respondents who refusedto visit the interview site (clinic) were either offered an interview at home or a telephone interview, thuscreang a mixed-mode design. With the introducon of the mixed mode design we reduced arions rateswith about 10%. But since a reducon in arion does not necessarily reduce bias, we will not only evaluatethe response rate but also the response selecvity. From the perspecve of a researcher it is interesng toknow the implicaons of the mixed-mode design for their research results...1.18.2 Comparison of personal interviewing and self-administered quesonnaires: Effect on representa-veness and prevalence of selected health indicatorsA. Christensen 1 , O. Ekholm 1 , K. Juel 11 Naonal Instute of Public Health, DenmarkThe Danish Naonal Instute of Public Health, University of Southern Denmark has carried out naonal representavehealth interview surveys among the adult Danish populaon (16 years or older) in 1987, 1994, 2000and 2005. The main purpose of the surveys is to describe the status and trends in health and morbidity. Thedata have been collected via face-to-face interviews at the respondent’s home. However, in 2010 data werecollected via self-administered quesonnaires. In order to assess the comparability of the survey with the formersurveys, a small face-to-face interview survey (n=1,500) was carried out in addion to the main survey(n=25,000). The same quesonnaire was used in both surveys and the surveys were carried out in the sameme period. Both surveys were based on mutually exclusive random samples...1.18.3 The effects of mixed mode designs on simple and complex analysesP. Marn 1 , P. Lynn 21 City University London, United Kingdom; 2 University of Essex, United Kingdom