Couper, M./Hansen, S. and Sadosky, S. (1997): Evaluating interviewer performance in a CAPI survey. In: Lyberg, L./Biemer, P./Collins, M./de Leeuw, E./Dippo, C./Schwarz, N. and Trewin, D. (Eds.): Survey Measurement and Process Quality. New York.
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Couper, M. H., S., Sadosky, S. (1997). Evaluating interviewer performance in a CAPI survey. New York: Survey Measurement and Process Quality.
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