Capacity, duration and coding Flashcards
What is capacity
the amount of information a memory store can hold
What is duration
The length of time a memory store can hold information
What is coding
The form in which the memory stores hold information
What is chunking
The process of combining units of information in the STM to increase the amount of information you can hold in STM.
What was the aim and results of Conrads research
Investigate the nature of coding in STM
PPTs substituted similar sounding letters.
What was the aim and result of Jacobs research 1887
To investigate the capacity of STM
letters- 7.3 numbers- 9.3
What was the aim and result of Peterson and Petersons research
To establish the duration of memories without rehearsal in STM
18s
What was the aim and result of Bahariks research
To investigate the duration of memory in LTM
70% of faces remembered
Jacobs research evaluation
+support from Millar- replicable
-Artificial materials
Conrad evaluation
+High control for cause and effect
-Over simplified (WMM)
Peterson and peterson eval
-Artificial materials- meaning is key in memory
-may have been displaced
Baharik eval
+high ecological validity as non-artificial material
-hard to control EV’s
Baddely coding procedure
Gave accoustically similar or disimilar words and semantically similar or disimilar words. Asked to recall in order
Baddely coding findings
Immediate recall did worse on accoustically similar, 20 mins later did worse on semantically
Baddely coding eval
+Support for WMM- suggetss different stores
-Artificial stimuli
