If there is a causal relationship between two variables X and Y,
A)both should be used as explanatory variables.
B)then the causal variable should be used as the explanatory variable.
C)then they must be positively correlated.
D)one of them can be omitted from the analysis.

Question

Quizplus · Accepted Answer

If there is a causal relationship between two variables X and Y, then the variable that is causing the change in the other variable should be used as the explanatory variable. This would help to understand and quantify the effect of the causal variable on the other variable. Using both variables as explanatory variables may not be necessary, as one of them could be redundant and not add any useful information to the analysis. Furthermore, the correlation between the variables may not always be positive, as there could be negative or no correlation between the variables.

If There Is a Causal Relationship Between Two Variables X