Psychology Memory A level AS

Psychology Memory A level AS

1. 3 features of memory

   • Duration
     • STM 18-20 seconds (Peterson and Peterson: Trigrams)
     • LTM- Unlimited (Bahrick: Photos)
   • Capacity
     • STM- 7+/-2 (Miller)
   • Encoding
     • STM - Acoustic (Baddley A/S sim/disim)
     • LTM- Semantic words (Baddley sim/dismis words)

2. EWT

   • Eyewitness Testiomony
     • Affected by the amounts of anxiety one has
       • Yerkes and Dodsons law
         • 'accuracy of EWT increases with anxiety until an optimal point and then it declines '
       • Misleading questions
         • Loftus and Palmer
           • Students watched a car crash on video and were asked a question.; what speed was the car going before it 'hit' the other car. Hit was replaced with either contacted, crashed etc.. The more played down the incident was the students put lower scores and vice versa
       • Loftus et al
         • weapon study- there were 2 conditions where participants heard an argument between two experimenters and then one walked out with a stained pen (1) or a plastic knife (2). Participants were then asked to recall the event and those in condition (2)
   • Techniques of the Coginitive Interview Technique
     • 1) Context Reinstatement 2) Report everything 3) Recall Everything from a Changed Perspective 4) Recall in reverse order
     • Fisher- Florida police used CIT and it improved accurate recollections of events