In order to find a curvilinear relationship, the researcher needs to use:
A)factorial designs.
B)three or more levels of the independent variable.
C)more than one dependent variable.
D)a mixed factorial design.

Question

Quizplus · Accepted Answer

In order to find a curvilinear relationship, the independent variable needs to vary at least three times, such as with three levels. This will allow the researcher to observe a U-shaped or inverted U-shaped curve in the data, indicating a curvilinear relationship between the independent and dependent variables. Using factorial designs, multiple dependent variables, or a mixed factorial design may be useful for other research questions, but they are not necessary for identifying a curvilinear relationship.

In Order to Find a Curvilinear Relationship, the Researcher Needs