Greg Randle

Date of Award


Degree Name

Master of Arts



First Advisor

Dr. Roger E. Ulrich

Second Advisor

Dr. Neil Kent

Third Advisor

Dr. Galen Alessi

Access Setting

Masters Thesis-Open Access


The subject was a 2 and a half-year-old male who engaged in a high rate of aggressive behavior that appeared to be maintained by teacher reprimands and physical contact. An extinction procedure in which all aggressive behavior directed toward peers was ignored was used in conjunction with teacher attention directed to the victim. Teacher attention was also used to positively reinforce the subject for interaction with peers. These procedures reduced the subject's aggressive behavior to a much lower rate. Although the subject's undesirable behavior was modified, a questionnaire responded to by the teachers indicated the need for open communication between the behavior modifier and staff in studies such as this one.