Duration of STM

HideShow resource information
What is meant by duration?
A measure of how long a memory lasts before it is no longer available.
1 of 13
What is the difference between the duration of STM and LTM?
STM has a limited duration; LTM has unlimited duration.
2 of 13
What is the key study for the duration of STM?
Peterson & Peterson (1959)
3 of 13
How many students were enlisted in Peterson & Petersons study?
24
4 of 13
What did participants have to recall in Peterson & Petersons study?
A consonant syllable which had no meaning.
5 of 13
Why were participants in Peterson & Petersons study given a 3 digit number?
So rehearsal was prevented when recalling the nonsense syllable (as they counted down from this number in 3s or 4s)
6 of 13
How many trials was each participant given in Peterson & Petersons study?
2 practice trials followed by 8 real trials.
7 of 13
What was the retention interval on each trial?
3, 6, 9, 12, 15, 18 seconds.
8 of 13
What did Peterson & Peterson find?
Pps remembered 90% when there was a 3 second interval. Pps only remembered 2% when there was an 18 second interval.
9 of 13
What did Peterson & Petersons findings suggest?
When rehearsal is prevented, STM lasts about 20 seconds max.
10 of 13
What is a criticism of this study?
They are only studying memory for syllables and words; issues with validity.
11 of 13
Who challenged the findings of this study and why?
Marsh et al - when pps do not expect to be tested, forgetting occurs after 2 seconds.
12 of 13
Evaluation: What did Nairne et al find?
Duration of STM may not be as short as suggested - items could be recalled 90 seconds after when pps were asked to recall the same items across trials.
13 of 13

Other cards in this set

Card 2

Front

What is the difference between the duration of STM and LTM?

Back

STM has a limited duration; LTM has unlimited duration.

Card 3

Front

What is the key study for the duration of STM?

Back

Preview of the front of card 3

Card 4

Front

How many students were enlisted in Peterson & Petersons study?

Back

Preview of the front of card 4

Card 5

Front

What did participants have to recall in Peterson & Petersons study?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all Cognitive Psychology resources »