Simon and Chabris Flashcards
sample
228 ‘observers’ P’s
aim/hypothesis
in attentional blindness occurs in a realistic complex situation
type of experiment
laboratory, independent measures
independent variables
easy or hard task, opaque or transparent, hollis or umbrella woman, white or black team
brief procedure
team of 21 experimenters
P’s tested individually, informed about the clips, should count no.b passes between one of the teams
between 44-48 secs the unexpected event happened
4 video tapes created (same day, same actors, location etc)
results
54% of P’s saw unexpected event (based on 192 P’s, 36 omitted due to loosing count etc)
less likely to see unexpected event in transparent video
ethical guidelines
highly ethical
link to area
investigates selective attention by trying to find out if an unexpected event in our visual field may be entirely missed if focused on something else
link to key theme
not all info available to us in our visual field is processed
how were P’s obtained
self selecting sample, volunteers