Changing from PAPI to CAPI: A Longitudinal Study of Mode-Effects Based on an Experimental Design
AbstractThis paper examines the implication of the move to CAPI for data quality by analyzing the conversion from PAPI to CAPI of a subsample of the German Socio-Economic Panel (SOEP) which was done within an experimental design. The 2000 addresses for the sample E of SOEP were split into two subsamples E1 and E2 with the same structure using twin - sample points. Each of the 125 sample points contained 16 addresses (8 for E1 and 8 for E2) and had to be realized in the first wave alternately with PAPI and CAPI mode per interviewer. In the subsequent waves the PAPI mode was partly replaced by CAPI. With this experimental longitudinal design we are able to control for possible interviewer effects in the analysis of mode effects. The paper assesses whether any mode effects are apparent for the response rate. Within the data, we examine monetary dimensions such as gross income, item and unit nonresponse rates. We were able to find some minor effects but our main results show that we have made the shift without introducing strong mode effects.
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Bibliographic InfoPaper provided by DIW Berlin, German Institute for Economic Research in its series Discussion Papers of DIW Berlin with number 593.
Length: 27 p.
Date of creation: 2006
Date of revision:
Publication status: Published in: Journal of Official Statistics 26 (2010), 2, 233-269
CAPI; Mode effects; data quality; interviewer effects;
Find related papers by JEL classification:
- C81 - Mathematical and Quantitative Methods - - Data Collection and Data Estimation Methodology; Computer Programs - - - Methodology for Collecting, Estimating, and Organizing Microeconomic Data; Data Access
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-06-17 (All new papers)
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- Gert G. Wagner, 2009. "The German Socio-Economic Panel (SOEP) in the Nineties: An Example of Incremental Innovations in an Ongoing Longitudinal Study," SOEPpapers on Multidisciplinary Panel Data Research 257, DIW Berlin, The German Socio-Economic Panel (SOEP).
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