ABSTRACT
This chapter considers mixed-mode designs in which mode allocation may differ across sample units based on auxiliary information that is available before data collection or that becomes available during data collection. Such designs are specific forms of adaptive and responsive survey designs. The aims of this chapter are to explain potential adaptive survey design decisions in a mixed-mode context, to explain the consequences of such decisions for design and analysis, and to provide examples that may aid readers in exploring adaptive survey design for their surveys. Adaptive mixed-mode survey designs account for both mode-specific representation and mode-specific measurement.
