STM, LTM, Miller study

Question 1

capacity meaning

Answer 1

amount of info that can be stored in memory, STM is limited but LTM can be infinite

Question 2

duration meaning

Answer 2

how long a memory trace can last, LTM can potentially last forever but STM doesn’t last that long

Question 3

coding

Answer 3

info has to be ‘written’ in memory in some form, so such as acoustically or etc

Question 4

how can STM be increased

Answer 4

chunking method

Question 5

Miller study

Answer 5

Miller suggested we have a ‘7 +/ - 2’ capacity of short memory

• told participants to recall a list of numbers or words or pictures
• they then repeated it with a different set of numbers, words or pictures

Question 6

duration of long term (with study)

Answer 6

BAHRICK

• studied 395 people in america from ages of 17-74
• asked them to recall from high school yearbooks
• pps who were tested within 15 years of graduation were about 90% accurate
• after 15 years it dropped to 60% and after 48 years it dropped to 30%

Question 7

strengths of Bahricks

Answer 7

study looked at REAL and IMPORTANT memories (yearbook photos)
-high external validity

Question 8

weakness of Bahricks

Answer 8

• only says high school memories, not LTM in general

- all American, culture differences