If the effect of one independent variable changes over the levels of a second, a(n) _____ is present.
A) multiple main effect
B) interaction
C) confounding variable
D) matching variable

Name: If the effect of one independent variable changes over the levels of a second, a(n) _____ is present. A) multiple main effect B) interaction C) confounding variable D) matching variable
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Quizplus · Accepted Answer

An interaction is present when the effect of one independent variable changes over the levels of a second.

If the Effect of One Independent Variable Changes Over the Levels