Aresearcher would most likely find a(n) correlation between scores on a measure of impulsivity and scores on a measure of self-control.

Impulsivity and self-control are two opposing concepts, and thus it is more sensible for a negative relationship to arise between the two.

In statistical concept correlation describes relationship, and thus the answer to the question is negative as well.

It can be said that when someone has a high score on an impulsivity measurement scale, she or he would have a low score on a self-control measurement scale.  

answer; c.wright mills;