Anxiety and Eye Witness Testimony Flashcards
What are the AO1s and AO3s in order?
AO1 - Johnson and Scott 1976
AO3 - Internal validity from deception (+)
AO3 - Internal validity from inv effects (-)
AO1 - Yuille and Cuthshall (1986)
AO3 - Contradictory Riniolo et al. 2003 (-)
AO3 - stress- performance relationship (+)
AO1 - Johnson and Scott 1976
Key terms
- Anxiety on EWT
- No weapon condition, pen, grease
- Weapon condition, bloodied letter opener
- 50 photos
- 49% in no w, 33% in w
-Weapon focus effect
What is the weapon- focus effect?
Greater anxiety levels meant they focused on the weapon rather than the target
AO3 - Internal validity (+)
Deliberately used deception as the participants were led to believe that they were sitting in the waiting room waiting for the experiment to begin
dem char -> debriefed -> unaware -> inv -> c&f -> robust -> iv
AO3 - Internal validity from inv effects (-)
Knew that they were taking part in an experiment and they might have suspected that ‘something’ could happen
dem char ->more anx than usual -> c&f -> credibility -> iv
A01 - Yuille & Cuthshall (1986)
- evidence from real life shooting
- 21 saw person get killed
- 13 witnesses highly accurate, 5 months after
- resisted leading questions, anxiety little effects
- WPE don’t effect EWT
A03 – Contradictory evidence – Riniolo et al. 2003 (-)
15 eyewitness accounts of 20 were consistent with forensic evidence that demonstrates that the Titanic was breaking apart while it was still on the ocean’s surface
despite meth. limitations ->accurate recall -> striking prallels -> anx not sole -> plausibility -> so not always case
A03 – stress-performance relationship (+)
Deffenbacher (1983) reviewed 21 studies and found that the stress-performance relationship followed an inverted-U function proposed by the Yerkes-Dodson Curve (1908).
accuracy poor em arousal too high/ low -> moderate -> further evidence as found w Loftus -> supports stress n EWT
