Do "early finishers" disrupt the Equitable Learning Environment of all learners?

So what? Who cares? 
​Unfortunately very often the group of students that are at the higher learning levels than the rest of the class find the classwork easy and boring. This handful of students commonly known as “early finishers” have the potential to change the whole learning environment of the classroom once they have completed the assigned classwork. Typically as a result they misbehave while waiting for the others to finish and distract lower level students who are really being challenged to complete it. (Danzi, J., Reul, K., Smith, R., 2008).
Methodology
Sub Question- "Do early finishers disrupt other students still trying to complete a task?"
I plan to keep track by using tally marks of how many times I redirect daily off task behaviors of my "early finishers" in one category and how many times those re directions are due to disruption of student learning. I could also document and compare how many times "early finishers" are sent out of the classroom, receive referrals, time off of recess/fun Friday and their behavioral chart changes related to and not related to disrupting classmates completing an assignment.
References:
Danzi, J., Reul, K., Smith, R. 2008. Improving Student Motivation in Mixed Ability Classrooms using Differentiation.  https://eric.ed.gov/contentdelivery/servlet/ERICServlet?accno=ED500838 ​