factors affecting eyewitness testimony: anxiety Flashcards
what affect does anxiety have on recall?
-creates physiological arousal
-prevents people from paying attention
=worse recall
explain the anxiety procedure? (weapon focus)
pp’s heard argument with 2 different outcomes
- LOW ANXIETY: man walked out room with pen and grease on hands
- HIGH ANXIETY- walked out of room with paper knife covered in blood
explain the finding from the anxiety procedure? (weapon focus)
- pp’s picked man from 50 mug shots
- 49% who saw pen could identify
- 33% who saw blood could identify
- shows witness attention is on weapon
what is a criticism of the weapon focus research?
- may be testing surprise rather than anxiety
- could have focused on weapon due to fear
- research conducted found that recall was worse with unusual objets eg. holding a chicken/
- weapon focus could be due to unusualness not threat
explain the procedure of real life witness recall?
-real life shooting in Canada
shop owner shot and 13 witnesses
-interviews held 4/5 months later to go over shooting
-compared testimony from shooting and interview
what were the findings from the study into real life witness recall?
- witness accurate in accounts
- small details like colour were incorrect
- those reported as most stressed= better recall
- situational cues paired with axiety= better recall
explain contradictory findings?
YERKES-DODSON LAW
- UPSIDE DOWN U ON AXIS GRAPH
- lower levels of anxiety= low levels of performance
- performance increases as accuracy does
- until optimum level, then witness accuracy declines
evaluate what is wrong with real life recall research?
WEAKNESS
- when researchers interview many things could have happened in that time
- may impact accuracy of recall
- also has effects on anxiety which effects recall
evaluate ethical issues?
- creating anxiety is bad for pp’s -psychological harm
- real situations are more beneficial
- inaccurate to compare findings from staged and real life studies because different levels of control