Abstract
This study examined the influence of interpolated test on source monitoring by using post-event information effect paradigm. In this study, post-event information effect paradigm was used. This paradigm is composed of three stages (event, post-event information, memory test). Except for control condition, this study added interpolated recognition test stage between post-event information and memory test. This test forced participants to select event items or misinformation items. As a result, participants who selected event item tended to decrease correct source attribution. But source misattribution error, that is "saw" response to misinformation items which participants never see in the event, did not increase. On the other hand, participants who selected misinformation item did not decrease correct source attribution. But source misattribution error increased. These results suggested that source monitoring is influenced by the items that are presented after post-event information and by the response to those items.