STM

Question 1

Capacity, key studies

Answer 1

Jacobs (1887)- Digit span technique.
Miller (1952)- Dots flashed onto the screen
Finding; 7+- 2

Question 2

Duration

Answer 2

Peterson and Peterson (1959)- PPs given a constanant syllable and a 3 digit number. During the retention interval (3-18 secs) they had to count backwards from the 3 digit number.
Findings; 90%= 3 secs 20%= 9 secs 2%+ 18%
Duration= less than 18 secs.

Question 3

Capacity evaluation 1, Simon (1974)

Answer 3

Simon (1974)- the size of the chunks matter.

e.g shorter memory for eight-word phrases than one syllable.

Question 4

Capacity evaluation 2 (individual differences)

Answer 4

Individual differences- capacity increases with age.

Question 5

Duration evaluation (artificial)

Answer 5

Testing STM was artificial- Sylallbes are not meaningful unlike everyday memory activities e.g someones phone number.

Question 6

Acoustic coding

Answer 6

Words that sound the same cat,cab,cap.

Question 7

Semantic

Answer 7

words that mean similar things large,big,huge

Question 8

Baddely coding (year)?

Answer 8

(1966)- Stm is encoded acoustically

LTM is encoded semantically

Question 9

Coding evaluation (baddely)

Answer 9

Baddely may not have tested LTM- He tested LTM by waiting 20mins which is questionable as to wheter that is LTM.

Question 10

LTM capacity and duration

Answer 10

Potentially infinite