Based on the scenario, what is the dependent variable that should be measured during the study? Given information in the scenario, what is an operational definition of the target behavior that is objective, clear, and complete?

Scenario

Scenario 2: You are a BCBA working for a school district and consulting with the teacher, Mrs. Sauerzopf, of a typical second grade classroom. She has 20 students in her class as well as 2 aides, Ms. Marquez and Ms. Edwards. She has asked you to consult as three students in the class, Juanita, Anja, and Jerome, are frequently leaving their seat during a 30-min period of time that students are to work independently on their "morning work" while the teachers and aides prepare for the day. After conducting a functional behavior assessment, you have determined that this behavior is maintained by attention for all three students as the teacher or an aide will redirect the student and typically spend some time talking to him or her. You have discussed potential options to reduce this behavior with the teacher. You have decided to implement differential reinforcement of other behavior (DRO). If the student does not leave his or her seat for 5 min, the teacher or an aide will provide 30 s of attention and a token. At any point the student leaves his or her desk, the student will be asked to sit down with no other conversation occurring. When the student is again sitting, a new 5-min interval will begin. When the student receives 20 tokens, he or she can spend 5 min of one-on-one time with the teacher or an aide (student choice).