Answer:
Endogeneity.
Explanation:
When one of the explanatory variables of a comparative research is determined together with the dependent variable and this causes the specific cause and effect relationship to be unclear, we are facing an example of endogeneity.
In endogeneity a variable is related to changes in the pattern of behavior within a system. Thus, the causes of an effect (in a comparative search) may change, so the search can no longer be explained with the cause and effect relationship, so the endogeneity variable must always be associated with a error rate.