Memory - Evaluation

• Describe one limitation into Baddeley's research on coding.

  Artificial stimulus - word lists are not meaningful to participants. This makes it more difficult to generalise the findings to other memory tasks.
• Explain one limitation of Jacob's research into capacity.

  Lacks validity - it was conducted in 1887 when early psychology often lacked control over extraneous variables.
• Explain one limitation into Miller's research into capacity.

  Contradictory evidence for chunking - Cowan reviewed other research and found that capacity of STM was 4 chunks. This means that Miller overestimated the capacity of STM as 5 or 7 chunks.
• Explain one limitation of Peterson and Peterson's research into duration.

  Artificial stimulus - memorising syllables does not reflect real life memory activities. Therefore, this study lacks external validity.
• Describe one strength of Bahrick's research into duration.

  High external validity - real life meaningful memories were studied.
• Explain one strength of the multi-store model.

  Supporting research - Baddeley's study shows we confuse words that sound similar using STM and words that have similar meaning using LTM. This supports the idea that there are multiple stores for memory.
• Explain one limitation of the multi-store model.

  There is more than one type of STM - Shallice and Warrington's KF had poor STM when digits were recalled to him, but was much better when he recalled them himself. This is a limitation because it shows how there must be more than one memory store within STM.
• Explain another limitation of the multi-store model.

  There is more than one type of rehearsal - Craik and Watson found that it is the type of rehearsal which matters for recall. For example, maintenance rehearsal and elaborate rehearsal (needed for long term storage).