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Reducing question order effects: The operation of buffer items

Schwarz, Norbert; Wänke, Michaela. (1997). Reducing question order effects: The operation of buffer items. In Lyberg, Lars, Biemer, P., Collins, M., de Leeuw, E. D., Dippo, C., Schwarz, Norbert, Terwin, D. (Ed.), Survey measurement and process quality. 115-140.