The purpose of this study is to develop and apply strategies for positive behavior support to
3 students with developmental disabilities who have difficulties in getting along and developing
a meaningful interactive relationship with their classmates and, furthermore, to examine the
strategies' effects on the students' behavior and their interactive behavior with their peers.
Intervention plans are set up based on the functional assessments of the students' challenging
behavior conducted through a series of interviews and observations, and the effects of the
interventions are verified through the multiple baseline design across subjects.
The results of the study show that class-wide positive behavior support helps the students
with developmental disabilities to increase desirable behavior while reducing challenging
behavior. In addition, the observations of the students' interactive behavior among their peers
show that class-wide positive behavior support contributes a great deal to the increase of
positive interactive behavior and the reduction of negative interactive behavior. Such results of
this study demonstrate the significance of peer education.
key words : positive behavior support, challenging behavior, interactive behavior