Telephone versus face-to-face interviewing : mode effects on data quality and likely causes. Report on phase II of the Ess-Gallup mixed mode methodology project /
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| Other Authors: | , |
| Format: | Book |
| Language: | English |
| Published: |
Colchester :
Institute for Social and Economic Research,
c2006
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| Series: | ISER working paper (University of Essex. Institute for Social and Economic Research) ;
2006-41 |
| Subjects: |