Anxiety Flashcards
Define Anxiety ?
Strong emotional and physicals state that effects EWT
How does this effect the accuracy of EWT?
Extreme anxiety negatively effects EWT as witnesses only focus on certain aspects of an events
So there recall is limited
Who did the research supporting how anxiety effects the accuracy of EWT
Johnsons and Scott
What type of experiment did Johnson and Scott conduct ?
Lab experiment
Where were ppts either placed?
High anxiety weapon focus
Or low anxiety condition
What were the ppts told ?
To wait outside the room
What happened in the h.a.c?
Ppts heard arguments and sound of breaking glass from room and man walked out carrying knife covered in blood
What happend in the l.a.c ?
Ppts heard an argument and a man walked out with grease on his hands
What did they find for the Lac and the hac?
Lac correctly identified the man leaving the room 49% of time
hac correctly identified correctly 33% of the time
Conclusion of hac and lac?
Anxiety cause weapon focus reducing accuracy of recall
Who was rts the negative affects of anxiety on the accuracy of EWT ?
Valentine and mesout
What did valentine and memsout do ?
Divided ppts into high and low anxiety groups
They took part in the london dungeon labarinth
Asked to immediately recall physical details of actor
What was found ?
High anxiety lowered the accuracy of EWT
How did the particpents have to identify the person who left the room ?
From 50 photographs
What research contiridicts that anxiety reduces accuracy of EWT
Research by christianson and Hubinette
How many people were interviewed the the real life bank robbery ?
58 real life witnesses
What are the 2 cases of people on the bank robbery
Some were directly threatened
Some were bystanders
What was found with those that were directly threatened ?
Had even more accurate Accounts
How does this contradict anxiety affecting EWT?
IRL cases of those who had high anxiety they were able to focus on key aspects of the event
Ao3 yerkes and Dodson law strength what does it propose ?
Anxiety and it effects in EWT don’t have a simple relationship
Diffrent level of anxiety can effect EWT
Two little anxiety or to much anxiety can have a poor effect on accuracy of EWT
By having an optimum level of anxiety what goes higher ?
Accuracy of EWT goes higher
This helps explain the difference between Johnson and Scott’s participant and hubinettes
