Which of the following statements about multiple regression analysis is/are TRUE?
A) It is not possible to include curvilinear effects in multiple regression analyses.
B) Multiple regression is preferable to a factorial analysis of variance when two or more of the independent variables are correlated with one another.
C) Multiple regression analyses cannot use categorical variables as independent variables.
D) All of the above are true.

Question

Quizplus · Accepted Answer

A) This statement is false. Curvilinear effects can be included in multiple regression analyses by including polynomial terms (e.g. squared, cubed) of the independent variables.
B) This statement is true. When independent variables are correlated (i.e. collinear), a factorial analysis of variance may produce unreliable or misleading results, while multiple regression can easily handle collinearity.
C) This statement is false. Categorical variables can be included in multiple regression analyses by using dummy variables to represent the categories.

Which of the Following Statements About Multiple Regression Analysis Is/are