Indeed,

Familiarity backﬁre effects may be especially prominent after a time delay.
Though individuals are typically able to differentiate fact
from ﬁction
immediately after viewing a correction, they may soon forget the details of the
correction and retain only the gist of the original misinformation. For example,
Skurnik et al. (2007) ﬁnd that subjects were able to distinguish between myths
and facts about the ﬂu vaccine right after reading an informational ﬂyer but,
after only a short break, were signiﬁcantly more likely to mistake myths for facts
than the reverse. In addition, in a study of healthcare reform, Berinsky (2017)

https://doi.org/10.1017/9781108890960 Published online by Cambridge University Press

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Social_Media_and_Democracy