When graphed,a significant interaction effect produces two or more lines that
A)slant upward from left to right.
B)slant downward from left to right.
C)are not parallel.
D)have either U shapes or inverted U shapes.

Question

Quizplus · Accepted Answer

A significant interaction effect means that the effect of one independent variable on the dependent variable depends on the level of another independent variable. This often results in non-parallel lines on a graph, which is represented by choice C. Options A and B refer to linear relationships, which may not be the case in an interaction effect. Option D refers to a specific type of nonlinear relationship and is not always applicable to an interaction effect.

When Graphed,a Significant Interaction Effect Produces Two or More Lines