stm/ltm

Question 1

what is the capacity of stm

Answer 1

5-9 items

Question 2

what is the duration of stm

Answer 2

18-30 seconds

Question 3

how is stm encoded

Answer 3

acoustically

Question 4

what is the capacity of ltm

Answer 4

unlimited

Question 5

what is the duration of ltm

Answer 5

lifetime

Question 6

how is ltm encoded

Answer 6

semantically

Question 7

what did jacobs study

Answer 7

capacity of stm

Question 8

what was jacobs study

Answer 8

pp were shown letters/numbers and asked to recall them. amount was increased each time.

Question 9

what were the results of jacobs study

Answer 9

most pp recalled 7 letters and 9 numbers

Question 10

what is an advantage of jacobs study

Answer 10

can be replicated for reliability

Question 11

what is a disadvantage of jacobs study

Answer 11

lacks ecological validity/has demand characteristics

Question 12

what did miller study

Answer 12

capacity of stm

Question 13

what was millers study

Answer 13

pp were given letters/numbers to recall. some were chunked into meaningful groups eg.911/USA.

Question 14

what was the results of millers study

Answer 14

pp recalled more when they were chunked. capacity of stm can be increased by organising information

Question 15

what is an advantage of millers study

Answer 15

lab experiment

Question 16

what is a disadvantage of millers study

Answer 16

could be argued to measure ltm

Question 17

what did peterson and peterson study

Answer 17

duration of stm

Question 18

what was peterson and petersons study

Answer 18

pp shown trigrams then had to carry out interference task. they then had to recall the trigrams and the interference was increased in 3sec intervals

Question 19

what was the results from peterson and petersons study

Answer 19

number recalled decreased as interval increased. 90% recalled at 3sec and 2% at 18sec

Question 20

what is a strength of peterson and petersons study

Answer 20

lab experiment/replicable

Question 21

what is a weakness of peterson and petersons study

Answer 21

lacks population validity/demand characteristics

Question 22

what did bahrick study

Answer 22

duration of ltm

Question 23

what was bahricks study

Answer 23

pp were asked to recall classmates names(free recall),recall names with photo prompt OR match names and faces

Question 24

what were the results from bahricks study

Answer 24

30% could free recall after 30 years/90% could match names and faces after 14 years/60% could match names and faces after 47 years

Question 25

what is an advantage of bahricks study

Answer 25

high ecological validity

Question 26

what is a disadvantage of bahricks study

Answer 26

cant control extraneous variables

Question 27

what did baddeley study

Answer 27

encoding of stm/ltm

Question 28

what was baddeleys study

Answer 28

pp given 4 sets of words; acoustically similar(man,map), acoustically dissimilar(cow,pit), semantically similar(big,large), semantically dissimilar(good,hot). some had an interference task some didnt

Question 29

what was the results of baddeleys study

Answer 29

immediate recall struggled with acoustically similar. interference recall struggled with sematically similar

Question 30

what is an advantage of baddeleys study

Answer 30

lab experiment

Question 31

what is a disadvantage of baddeleys study

Answer 31

doesnt include visual encoding