Table 2.

Reasons why it is challenging to determine whether failures to notice resulted from inattentional blindness

Study	Not clear how many participants noticed	Measured noticing only indirectly	Unclear what criterion was used to assess noticing	Possible that the critical object was expected	Primary task required reporting of “unexpected” events	Included multiple unexpected events without separately reporting noticing rates for the first one
Al-Moteri et al. (2018)		X		X	X
Ann-Christin et al. (2018)			X	X	X	X
de Cassai et al. (2021)			X		X
Dixon et al. (2013)			X	X		X
Dixon et al. (2014)			X	X		X
Drew et al. (2013) Study 1			X
Drew et al. (2013) Study 2			X
Greig et al. (2014)				X	X	X
Ho et al. (2017)				X	X	X
Hughes-Hallett et al. (2015)			X	X		X
Marcus et al. (2015)			X
Pandit et al. (2022)	X			X		X
Park and Kim (2021)	X	X	X	X	X	X
Williams et al. (2021) Study 1				X		X
Williams et al. (2022)	X		X	X	X	X