Under what conditions would a researcher choose to use a factorial ANOVA?
a. If there is a single nominal level independent variable with two attributes, and a dependent variable measured at the interval or ratio level.
b. If there are multiple nominal level independent variables and a dependent variable measured at the interval or ratio level.
c. If there is a single nominal level independent variable with more than two attributes, and a dependent variable measured at the interval or ratio level.
d. If there is a nominal level independent variable with more than two attributes and a dependent variable measured at the interval or ratio level.
Answer b
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