Table : TABLE 17-1. A Summary of Research Designs We have encountered several research designs so far, most of which fall in one of two categories. Some designs—those listed in category I—include at least one scale independent variable and a scale dependent variable. Other designs—those listed in category II—include a nominal (or sometimes ordinal) independent variable and a scale dependent variable. Until now, we have not encountered a research design with a nominal independent variable and a nominal dependent variable, or a research design with an ordinal dependent variable.
I. Scale Independent Variable and Scale Dependent Variable
II. Nominal Independent Variable and Scale Dependent Variable