Abstract
It has been pointed out that behavioral observation may be more useful than psychological tests in understanding the characteristics of developmental disorders when autism spectrum disorders (ASD) are diagnosed after adolescence. Therefore, this research verified the kinds of daily behavioral characteristics peculiar to ASD that were identifiable from direct observation, as well as the observational perspectives of registered occupational therapists (OTR) during the evaluation. The research method included interviews with five OTRs regarding the identifying characteristics of ASD after they evaluated the social life skills of ASD patients. As a result, we extracted 36 characteristics and problematic issues from 7 entries. The characteristics related to the difficulty with transitions between activities might be particular to ASD.
