WorksheetsPeterson & Peterson (1959)
Total questions: 13
Worksheet time: 7mins
Peterson & Peterson aimed to test...
the duration of STM without rehearsal
the duration of STM using rehearsal
how schema affects memory
the duration of LTM
What kind of experiment was it?
Natural experiment
Field experiment
Laboratory experiment
Describe the sample of the study.
100 kids
53 families from Chicago
24 students
20 British people
Which is a trigram?
375
TVQ
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Why were participants asked to count backwards in threes (273, 270, 267...)?
Test mathematical ability
Prevent encoding
Prevent retrieval
Prevent rehearsal
What was the shortest amount of time participants had to count backwards for?
2 seconds
3 seconds
4 seconds
5 seconds
What was the longest amount of time participants had to count backwards for?
18 seconds
21 seconds
23 seconds
30 seconds
How many trigrams were recalled after 18 seconds delay?
less than 5%
less than 10%
over 50%
over 80%
How many trigrams were recalled after just 3 seconds delay?
less than 5%
less than 10%
over 50%
over 80%
What did Peterson & Peterson conclude?
STM lasts for around 18 sec without rehearsal
STM lasts for 18 sec with rehearsal
Rehearsal is necessary to transfer info from STM to LTM
We tend to remember more words at the start and end of a list
Which of these are strengths of the study?
The task of recalling trigrams is unrealistic
The procedure was standardised and highly controlled (same process for all)
It is easy to replicate and retest
Why is a standardised procedure a strength?
High generalisability
High reliability
High validity
Ethical
Why does this study have low ecological validity?
The task of recalling trigrams is unrealistic
The procedure was standardised and highly controlled (same process for all)
It is easy to replicate and retest
