Research Design
Doing research is an exercise in trade-offs. Richness of information typically comes with reduced generalizability. The more a researcher seeks to control for confounding variables, the less realistic his or her results are likely to be. High precision, generalizability, and control almost always translate into higher costs. When researchers make choices about whom they’ll study, where their research will be done, the methods they’ll use to collect data, and so on, they must make some concessions. Good research designs are not perfect, but they do carefully reflect the questions being addressed. Keep these facts in mind as we review the strengths and weaknesses of five popular research designs: case studies, field surveys, laboratory ...
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