ABSTRACT
Theorizing and mixing methods presented in Chapter 2 are the two axioms of the Theory-Driven Mixed Methods (TDMM) approach to survey development and research that we propose in our book. In addition to theorizing that we discussed in Chapter 2, we advocate calls for the clear use of both qualitative and quantitative methods.
This chapter describes how qualitative and quantitative methods can be mixed to fulfill different functions in survey development and research and how mixed data can be synthesized to test hypotheses. More illustrations on mixing qualitative and quantitative methods in the survey development process can be found in Chapter 14. Mixed methods research tears down the barrier between the quantitative and qualitative research paradigms and frees researchers to use both quantitative and qualitative methods to design their research studies and to collect data. Many survey developers and researchers welcome this movement. In this chapter, six designs are described that mix quantitative and qualitative methods (verification, supplementary, elaboration, discovery, emergence, and amalgamation) in the process of designing and constructing surveys and validating responses to surveys.
