In an evacuation behavior analysis, records of behavior such as straying are dependent on participants' memory. Therefore, there is a loss of some of behavior records. In this research, we propose pair-testing method for supplementing records. A participant pair with an observer and records the behavior of participant. As a result of evacuation experiment, the behavior of participants was supplemented by the observer by 47.5%. It is expected that evacuation behavior will be verified from the relationship between these behavior data and context-dependent data.
