The case for multiple UESDs and an application to migrant deaths in the Mediterranean Sea

Abstract Many recent applications of the “Unexpected Event during Survey Design” (UESD) analyze single cases of frequently occurring events. In this research note, I question the generalizability of research findings obtained this way and demonstrate the empirical benefits of the “Multiple Unexpected Events during Survey Design” (MUESD). I conduct 15 large-scale replications (total N = 101,940) of a new UESD analyzing the effects of Mediterranean shipwrecks on immigration attitudes. Previous research suggests that such events drastically reduce anti-immigration attitudes among the European public, presumably through an empathy-based mechanism. However, after 15 of the most lethal shipwrecks since 2013, anti-immigration attitudes were reduced in only one case of exceptionally high salience and to a much lesser degree than originally found.