Coding Capacity and duration of memory Flashcards
What is a strength of Baddeleys study into coding?
PE:Shows a clear difference between two memory stores by distinguishng the coding
E:-Aided our understanding of the memory system
L:-Has usefulness
How can Baddeleys research into coding be critisised?
Used artificial stimuli, word list had no meaning to pps
-May not tell us about coding of memory tasks irl
-people may use semantic coding in STM for meaningful tasks
-Limited application
What is a strength of Jacobs study into the capacity of STM?
-Jacobs study is very old but still has better controlled replications that have the same findings
-Thus, valid test for STM capacity
How can study into capacity of STM (Miller) be criticised?
Cowan found that capacity of STm is closer to 4+-1 not 7+-2 chunks
How can Peterson and Petersons studyinto the duration of STM be criticised?
-Artificial stimuli, recalling constant syllables isnt representative of real life
-Lacks external validity
What is a strength of Petersons +Petersons study into the duration of STM?
We do occasionaly try to remember fairly meaningless material e.g phone numbers
-Has some external validity
What is a strength of Bahricks study into the duration of LTM?
-High external validity as it is a situation that could occur inreal life
-researchers used meaningful memories
-Shepard found recall was lower when photos were not meaningful
-Usefulness/supporting evidence
What is a limitation of Bahricks study into the duration of LTM?
-May lack internal validity as confounding variables not controlled
-Individuals may ahve looked at yearbook photos and rehearsed memory
-May be inaccurate