The purpose of this study was to investigate a quantitative analysis of the effects of individualized positive
behavior supports by conducting a meta-analysis of studies with single-case research designs. In this
manner, a total of 28 articles published in Korean by 2017 were selected and were subsequently analyzed
in the current study. For extracting visual data, the GetData Graph Digitizer 2.26 was used. Tau-U
values were calculated through a comparison of the intervals. The main results of the study were as
follows. First, the size of the intervention and maintenance effect of the individualized positive behavior
support was considered to be large. Second, the effect size was large regardless of the elementary, middle,
and high school students, and the effect of the intervention was great for all students regardless of the
type of disability (e.g., autism, intellectual disability, multiple disabilities). Therefore, in the case of
positive behavior supports on decreasing challenging behaviors, there was significantly larger intervention
effects which were noted when the researchers solely conducted interventions than were noted with related
team-based interventions. Finally, the limitations, suggestions for future research, and practical implications
are discussed.