In a 2 * 2 complex design,one independent variable was shown not to have a statistically significant main effect on the dependent variable.Based on this,we can state that
A) the independent variable has external validity over the levels of the second independent variable.
B) it is not a relevant independent variable.
C) for the variable to be considered relevant in this experiment, it must interact with the second independent variable.
D) the variable will definitely interact with the second independent variable in this experiment.

Question

Quizplus · Accepted Answer

The lack of a statistically significant main effect does not render an independent variable irrelevant; it may still interact with another variable to influence the dependent variable, suggesting its relevance could be conditional on the levels of the other variable.

In a 2 * 2 Complex Design,one Independent Variable Was