Atkinson & Shiffrin Multi Store Model

• How long does sensory memory last?

  It has a very short duration.
• What is the capacity of sensory memory? 


  It has a very large capacity.
• What does attention do?

  Transfer info to the short term memory from sensory memory.
• What is the duration of the STM?

  Very limited, about 30 seconds.
• What is the capacity of the STM?

  Between 5-9 items.
• How is STM coded?

  Acoustic coding.
• What is the role of rehearsal?

  Keeps info in the STM.
• What does repeat rehearsal do?

  Transfer the STM to the LTM.
• How is the LTM coded?

  Semantic coding.
• What is the capacity of the LTM?

  It is unlimited.
• How long can info be stored in the LTM?

  Up to a lifetime.
• How many memory stores are there and what are they?

  Three memory stores, STM, LTM, and sensory.
• How does info move in the multi-store model?

  Through attention and verbal rehearsal.
• What is one positive evaluation of the multi-store model?

  Encoding research by Baddeley supports and shows qualitative differences between STM and LTM.
• What is a negative evaluation of the multi-store model? 


  Having one STM and LTM store is too simplistic. For example, there’s more than one LTM store.