The number of students with disabilities in regular schools currently being inclusive education is increasing
every year. These studies in connection with how to apply the instructional adaptation have been consistently
conducted. In the light of that, this study analyzed domestic experimental researches on the instructional
adaptation and discussed both directions in how any relevant fields should investigate the topic as well as
tasks that should be done to realize the instructional adaptation. This study collected and analyzed a total of
22 domestic experimental researches, and the findings of the analysis are summarized as follows. First, in the
field of thesis publication, the domestic experimental researches basically focus on special education journals or
graduate schools of special education. Second, as for research subjects, most of the domestic experimental
researches selected students with intellectual and developmental disabilities and elementary schools as their
research subjects. In the mean time, the study also learned that in regard to the subject selection, the higher
the level of school, the less the tool subjects were chosen. In addition, when the researches tried to select the
subjects, they appeared not to work based on any general or objective standards such as IEP, the levels of the
students, the level of the students’ interest and others. Third, in relation to the research purposes, the
domestic experimental researches aimed mostly to increase the class participation but to reduce problematic
behaviors, and two of the researches talked about the regular students’ attitudes to accept the disabilities. As
for the research methods, the study noticed 19 single subject researches and three comparative experimental
researches. Third, in terms of the category of instructional adaptation, three of the domestic experimental
researches turned out to apply all the five categories of instructional adaptation, and 19 of the whole domestic
experimental researches were observed to apply only a few of the categories.