Janis volunteered to participate in a psychology experiment. when janis arrives to the lab she is greeted by a lab assistant standing on the other side of a counter. the lab assistant explains the informed consent and asks her to sign the form. as the lab assistant reaches for the form he drops it behind the counter. the lab assistant reaches down behind the counter to pick up the form and unbeknownst to janis another person stands up holding the form. after janis signs the form, she is asked if she noticed the change. she replies that she did not. this phenomenon is known as

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Francis Moyer

Social Studies

22 July, 14:37

Janis volunteered to participate in a psychology experiment. when janis arrives to the lab she is greeted by a lab assistant standing on the other side of a counter. the lab assistant explains the informed consent and asks her to sign the form. as the lab assistant reaches for the form he drops it behind the counter. the lab assistant reaches down behind the counter to pick up the form and unbeknownst to janis another person stands up holding the form. after janis signs the form, she is asked if she noticed the change. she replies that she did not. this phenomenon is known as

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Alvin · Answer 1

Janis does not notice the change of the lab assistants due to the phenomenon known as change blindness. Change blindness is the failure to detect a change in ones visual scenes. Certain factors that influence change blindness include ones attention, age, or how the study is being conducted.