coding, capacity, duration of STM + LTM

Question 1

Conrad

Answer 1

coding in STM. Series of letters shown to participants and had to write in same order. More mistakes made when letters sounded same. Shows acoustic coding.

Question 2

Jacobs

Answer 2

digit span technique to measure capacity of STM. Read out list of numbers to repeat. Number added each time had to be read out in same order. Capacity of 5-9.

Question 3

Miller

Answer 3

‘chunking’. length of words does not matter. Only takes up one of 5-9 units of STM.

Question 4

Peterson + Peterson

Answer 4

Duration of STM. participants given consonant syllable and 3 digit number. Had to count back from number to prevent mental rehearsal of syllable. Told to stop at different time. Duration is 18 seconds.

Question 5

Baddeley

Answer 5

Coding of LTM. participants in 4 groups. Recall the same for acoustically similar + dissimilar words after 20 mins. Semantically similar words recalled worse. LTM coded semantically.

Question 6

Bahrick et al

Answer 6

Duration of LTM. 2 groups all went to same high school within 50 years. Recall groups asked to recall names after shown a photo. Other group had to name each person in a yearbook from a list of names. Recognition group identified more. LTM duration better with recognition not recall. 50 years- life.