Coding, Capacity + Duration (AO3) Flashcards
(6 cards)
What is a strength of Baddeley’s study on the coding of memory?
It identified 2 memory stores. STM is mostly acoustic and LTM is mostly semantic. Led to development of multi store model.
What is a limitation of Baddeley’s study on the coding of memory?
It used artificial stimuli. The words in the list had no personal meaning so it tells us little about real life. STM can be semantic too when people process meaningful data- so has limited application.
What is a strength of Jacob’s study on capacity?
It has been replicated. May have lacked controls but have been confirmed in later controlled studies. So it is a valid measure of digit span in STM.
What is a limitation of Miller’s study on capacity?
It overestimates STM capacity. Cowan reviewed other research and said that capacity was only about 4 chunks. So lower end of Miller’s estimate is more appropriate.
What is a limitation of Peterson and Peterson’s study on duration on STM?
It had meaningless stimuli. Recall of consonant syllables doesn’t reflect everyday memory tasks. So study lacks external validity.
What is a strength of Bahrick et al.’s study?
Has high external validity. Everyday meaningful memories (faces of people and names) were studied. When lab studies were done with meaningless pictures, recall was lower. Bahrick’s findings reflect a real estimate of duration of LTM.
